CA1284851C - Disposable glove - Google Patents
Disposable gloveInfo
- Publication number
- CA1284851C CA1284851C CA000571835A CA571835A CA1284851C CA 1284851 C CA1284851 C CA 1284851C CA 000571835 A CA000571835 A CA 000571835A CA 571835 A CA571835 A CA 571835A CA 1284851 C CA1284851 C CA 1284851C
- Authority
- CA
- Canada
- Prior art keywords
- glove
- sheet material
- plys
- thumb
- mitten
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D19/00—Gloves
- A41D19/0055—Plastic or rubber gloves
- A41D19/0068—Two-dimensional gloves, i.e. obtained by superposition of two sheets of material
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Gloves (AREA)
Abstract
ABSTRACT OF THE INVENTION
A method of converting sheet material into gloves consisting of the steps of arranging sheet material with two inner plys of thermoplastic between outer plys of tissue. Then, applying heat to one of the outer ply of tissue in the outline of a glove, such that the inner plys of thermoplastic bond the plys of sheet material together to form a glove with an opening along one side to permit hand entry. An apparatus for use in converting sheet material into gloves consisting of a body and an electrically heated metal plate mounted on the body with at least one opening in the shape of a glove. "C" clamps are hinged to the body such that the body may be mounted to a thermally insulated surface and moved between a position where the plate engages the surface, and a position where the plate is spaced from the surface. A disposable glove consisting of two inner plys of thermoplastic sheet material between outer plys of tissue that material, sealed together to form a glove with an opening along one side to permit hand entry.
A method of converting sheet material into gloves consisting of the steps of arranging sheet material with two inner plys of thermoplastic between outer plys of tissue. Then, applying heat to one of the outer ply of tissue in the outline of a glove, such that the inner plys of thermoplastic bond the plys of sheet material together to form a glove with an opening along one side to permit hand entry. An apparatus for use in converting sheet material into gloves consisting of a body and an electrically heated metal plate mounted on the body with at least one opening in the shape of a glove. "C" clamps are hinged to the body such that the body may be mounted to a thermally insulated surface and moved between a position where the plate engages the surface, and a position where the plate is spaced from the surface. A disposable glove consisting of two inner plys of thermoplastic sheet material between outer plys of tissue that material, sealed together to form a glove with an opening along one side to permit hand entry.
Description
~.2~ &3S~
The present invention relates to a disposable ylove, toge-ther with a method and apparatu~ for manufac-turing the same.
5 BAC:KGROUND OF TI~E INVENTION
There are numerous applications in our society where a covering for the hand is required. One example is for the serving of bakery goods, as the clerk does not wish to be seen to directly handle the customer's 10 purchase. This need i~ presently being fulfilled by the clerk placing his or her hand in a polyethylene bag.
There are many disadvantages to using a bag. It is often difficult to find the opening in which one is to insert ones hand. The bag fall~ o~f the hand, often at 15 an inopportune moment, and it i8 difficult to manipulate article~ properly.
The obvious solution to the problem i5 to form the polyethylene into a glove which will conform to the hand 20 and be di~posable when the task i~ completed. This ha~
not been accomplish~d due to a number of problems. One problem is that upon application of heat to a thin film of polyethylene to form a glove, the polyethylen~ film disintegrates. The use of alternate materials has 26 proven too costly, which inhibit~ use as a "dispo~able"
glove. Another problem is one of functional design, as the attempts to resolve the problem have tended to be in~erior products which add an addi-tional problem of tearing to the problems inherent i~ plastic bags.
SU~ARY OF TE~ IN~E~TION
What is r~quired is a method ~f making thermoplastic material into disposable ~loves. What is required iY a glove that can readily be placed upon the .~
~3~
hand and o~ce in place will ~tay there and permit a full ranye of hand func-tion.
According to one aspect o~ the invention there is provided a method of convertiny sheet material into gloves, which is comprised of the steps of arranging she~t material with two inner plys of thermoplastic between outer ply8 of tissue. Then, applying heat to one of the out~r plys of tissue in the outline of a 10 glove, such that the inner plys of the~moplastic bond the plys of sheet material together to form a glove with an openiny alon~ one side to permit hand entry.
Although beneficial results may be obtained through 15 use of the method de~cribed, the sheet material between the diyits will form a web like a baseball glove that restrict~ movement, and the ~love will not be universal in fit. Consequently, even more beneficial re~ults can b~ achieved, if the preferred features are added of 20 having the glove in -the form of a mitten, and including the further ~tep of cuttiny an arcuate cut from the inside of the thumb to the side of the sheet material adjacen-t the thumb, thereby facilitating movement of the thumb.
According to another aspect of the iTlvention there is provided an apparatus for u~e in converting sheet material into glove~ which is compri~ed of a body; and a metal plate mounted on the body with at lea~t one 30 opening in the ~hape of a glove. Mean~ are provided for heating the plate. Mean~ are provided for pivotally mounting the body such that the body may be mounted to a thermally insulated ~urface and moved between a position where the plate engages the surface, and a position 3~ where the plate i~ spaced from th0 ~urface.
According to another aspect of the invention there is provided a disposable glove which is comprised of two inner plys of thermoplastic ~heet material between outer plys of tissue ~heet material, ~ealed together to ~orm a glove with an opening along one ~ide to permit hand entry.
Althouyh beneficial results may be obtained through us~ of the disposable glove de~cribed, as previously 10 mentioned, the sheet material between the digits will form a web like a baseball glove that restrict~
movement, and the glove will not be universal in f it.
Even more beneficial results can be achieved, therefore, if the preferred features are added of having the glove 15 in the ~orm of a mitten having a perforated arcuate cut from the inside of the thumb to the 3ide of the sheet material ddjacent the thumb, thrreby ~acilitatin~
movement of the thumb.
Although beneficial re~ults may be obtained from using tha described di~posable glove, even more benef icial results may be obtained i f the opening to the glove is modified in accordance with the preferred embodiment to facilitate entry of ~ hand into the 25 opening, This can be accompli~hed by adding to the described di~posable glove the preferred feature of -the openin~ having a first side and a second ~ide, the plys of sheet material on the first ~ide of the opening being longer than the plys of sheet material on the second 30 side of the opening, thereby forming an extension.
Although beneficial re~ults may be obtained from using the de cribed di~posable mitt, even more beneficial re~ults may be obtained if for the : 35 .
' ~
~ 28~5~
~onvenienee o the consumer the disposable mit-ts are dispensed in rolls. If the gloves are dispen~ed in pair~ -the thumhs can be placed in an extended position which prolongs the effective life oP the glove.
According to this aspec-t of the invention there is provided a disposable glove which is compris~d o~ a roll of two inner ply5 of thermopla~tic shee-t material between outer plys of tissue sheet material, sealed toye-ther to form pairs of mitten~, the roll having 1~ opposed sides, each pair of mittens having interlocking thumb~ and being separated by perforation~, openings to permit hand entry into the mitten~ being along the sides of the roll, each pair of mitten~ beîng separated from an adjoining pair of mitten~ by perforatio~s.
Although beneficial re~ults may be obtained from using the described dispoYable mitt, even more beneficial re~ults may be obtained if modifications are made to the outer ply of ti~aue material to make it 20 particularly suited for a ~elected usage. By way of example, the outer ti~5ue can b~ made of an ab~orbent material for delicate cleaning job3, or abrasive material for use when scrubbing. The tis~ue can al~o be treated with a variety of chemicals to alter it 18 25 prop~rties~ By way of example, the ti8SUQ could be treated with a fir~ retardant for u~e when working with yasoline or other flamables.
~RI~F DESO~IPTIO~_OF T~ D~WINGS
The~e and other features of the invention will become more apparent from the following descrip-tion in which refererlce i~ made to the appended drawing~, wherein:
FIGUR~ 1 i9 a per~pective view illustrating a first 35step of the preferred method.
FIGURE ~ is a peIspective vie~ of a preferred embodiment of a dispos~ble glove made i~ accordance with the invention.
FI~URE 3 is a perspective view of a preferred embodiment of an apparatus.
FIG~R~ ~ is a perspective view illustr~ting the use of the apparatus of ~IG~R~ 3.
FIGUR~ 5 is a perspective view of the di~posable glove of FIGURE 2, dispensed in roll~.
1~ FIGUR~ 6 i~ a perspective view ~f an alternate embodimen-t of the invention.
D~TAl~D D~SCRIPTI0~ 0~ THE PRÆ~E~R~D ~BODI~ENT
The preferred method will now be described with 15 re~erence to ~IGUR~S 1 and 2. The p~eerred apparatus which is used in carrying out the msthod will ~ow be described with reference to FIG~RES 3 and 4. The preferred embodiment, generally designated by reference numeral 10, i~ a disposable glove, which will now be 20 described with reEerence to FIG~RÆ 2. Variation~ of di~posable glove 10 will be de~cribed with reference to FIG~R~S 5 and 6.
The preferred method permit~ thermoplastic ~heet 25 material 12 and tissue sheet material 14 to be made into gloves 10 and consi~t~ of the following described steps.
Firstly, referring to ~IG~R~ 1, arran~in~ ~heet material 12 and 14 ~uch that there are two inner ply9 of thermoplastic 12 b~tween ou~er ply5 of ti~sue 14. For 30 -th~ purpose of this description, the four side~ of the rectangular sh~et material illustrated shall be de~ignated by numeral~ 16, 18, 20, and 22. Secondly, applyiny heat to one of the outer ply~ of tissue 14 in the outli~e of a mitten 24, ~uch that the inner ply~ of 35 thermoplastic 12 bond the ply8 of ~heet material 12 and l~. Onc~ shee-t material~ 12 and 14 bond together, an unsealed pocket 15 i8 fosmed. Pocket 15 is in the outline of mitten 24 with a finger portion 26, and a thumb portion 28, as illu~trated in FI~R~ 2~ Pock~t 15 has an unsealed opening 30 along side 16 to permit hand entry. Thirdly, cutting an arcuate cut 32 from between finger portion 26 and thumb portion 28 to side 18 of glove 10 adjacent the thumb portion 28.
It will be apparent to one skilled in the art, that the application of heat directly to thermoplastic shee-t material 12 would result in thermoplastic 12 disintegrating. The addition of tissue sheet material 14 enables heat direct heat to be applied to form glove 15 10. The amount of heat required to ~eal sheet material 12 and 14 together depends upon the thicknes~ of material used. By way of example, the applicant is presently uslng thermoplastic and tissue sheet material which are 1/2 of a millimetre in thickness. The heat 20 applied to the de~cribed thickness of material is approximately 500 degrees fahrenheit. Prior to developing the apparatu~ which will b~ hereinaf ter describ~d, proto-type~ where constructed by the applicant u~ing a household cloth~ iron. Although the 25 type of glove illustrated in the preferred embodimen-t i~
a mitten it will be apparent to one ~kill~d in ths art that glove~ wi-th separated digits can also be con~tructed by the described method. The mitten provides distinct advantages as there need only be 30 ~mall, medium and large sizes. Although the preferred embodiment has an arcuate cut to facilitate movement oE
the thumb, it will be app~rent to onc ~killed in the art that by spreading the Einger~ a glove can be constructed with a web between the f ingers which resembles and 3~ functions much like a baseball glove. If de~ired, the ~?~ 51 web between the digi-ts could be cut to permi-t indeperldent movement of each f inger .
Apparatu~ 34 as illu~trated în FIGUR~S 3 and ~ has as its primary component a rectangular body 36. For the purpose of this description the sides of rectan~ular body 36 ~hall be designated by reference numerals 38, 40, 42, and 44, and the face of body 36 shall be designated by reference numeral 46. A metal plate 48 10 is mounted to face 46 of body 36. Plate 48 has two opening~ 50, both of which are in the shape of a mitten.
Although not vi~ible in th~ illustrations, an electric heating element i8 positioned within plate 4~, which, when connec-ted to a power source, results in plate 48 15 bein~ heated. "C" clamps 52 are attached by hinges 54 to Qide 38 of body 36. A handle 56 i9 attached to ~ide 42 of body 36.
The operation of apparatus 34 will now be described 20 with re~arence to FI~RES 3 and ~. In FI~RE 3, apparatus 34 i8 shown as being attached to an ironing board with a thermally in~ulated cover, which has been de~ignated by reference numeral 58. Ironi~ board 58 has a ~ontact surface 80. In order to use apparatu~ 34, 25 it must be attach~d by "C" clamps 52 to a base, suoh as ironing board 58. It is pr~erable if the base is thermally in~ulated so that it is not damaged by the application of heat. "C" clamps 52 are attached by hingeq 54 to side 38 of body 36. Hinges 54 permit body 30 36 to be moved between a ~irq-t position where the plate 48 engage~ surface 60 of ironing board 58, and a second position where plate 43 i~ spaced from ~ur~ace 60 of ironing board 58. With body 36 in the ~econd position, sheet~ of thermoplastic material 12 and sheets o~ ti~sue 35 material 14 are placed on surface 60 of ironing 'ooard 58 ~ ~`3'~ 5~
directly below plate 48. As de~cribed in relation -to -the pre~erred method, sheet material 12 and 14 mu~t be arranged such that there are two inrler plys of thermoplastic 12 between outer plys of tissue 14. The electric element in plate 48 i~ therl connected to a power source to heat plate 48, until plate 48 has reached sufficient heat to bond the thermopl~-tic mat~rial 12 with the tissue material 14. For @xample, a heat of 500 degrees fahrenheit i~ sufficient where the 10 thickne~s of each ply of material i8 . 5 of a millimetre, for a total thickness of 2 millimeters. Body 36 is moved to a Eirst position, and maintained i~ position for 2 to 3 seconds. When in -the firs-t position plate 4a heat seal~ sheet materials 12 and 14. However, the 15 openings 50 in plate 48 leave an un ealed pocket 15 between the plys thermoplastic sheet material 12 and a~
unsealed opening 30 along sid& 16 to permit hand en-try.
Th~ described apparatus was developed a~ an 20 alterna-tive to pressing the outline of a glove on shee-t material 12 and 14 u~ing an iron. It will be apparent to one skilled in the art that a ~imilar result can be achieved by having two matins plates, and tbat there are : numerou~ ways to mechanically arrange the movement of 25 the plates between fir~t and second positions. It will be apparent to one skilled in the art that instead of ironing board 58 an ordinary table may be used provided that it is protected by a thermally insulated pad where plate 48 contacts the table when body 36 in thz first 30 position.
Disposable ~love 10 consists o~ two inner plys of thermoplastic sheet material 12 between outer plys of tissue sheet material 14. For the purpose of this 35 description, the four sides of the rectangular sheet 5:~
material illustrated shall be designated by numerals 16, 18, 20, ~nd 22. Sheet material 12 and 14 are sealed toge-ther to form a pocket 15 with an unsealed opening 30 along side 16. Pocket 15 is in the outline of mit-t~n 24 with a finger pvrtion 2Z, and a -thumb portion 28, as illustrated in FIGURE 2. Glove 10 has a partially perforated arcuate cut 32 which extends from between firlger portion 26 and thumb portion 28 to side 18 o~
glove 10 adjacent the thumb portion 28. A semi-circular 10 configuration 62 i5 positioned at one end 64 oE arcuate cut 32. Opening 30 has a first side 66 and a second side 68. The plys of sheet material 12 and 14 un firs-t side 66 of opening 30 are longer than the ply8 of sheet material 12 and 14 on ~econd side 68 o~ opening 30 15 forming an extension 670 The outline of a mitten 24 i8 marked in coloured ink on glove 10. The thermoplastic sheet material 12 visible on extension 67 is also coloured.
The operatiorl of glove 10 will now be described with re~erence to FIG~RE 2. Although glo~e 10 is rectangular in appearance, unsealed opening 30 can easily be located with reference to the outline of mitten 24 marked in ink, and the coloration of extension 25 6~. These features clearly indicate to -the u~er the correct orientatiGn of the glove. The u er then grasps glove 10 by extension 67 and inserts his hand between the plys of thermoplastic sheet material 12. E~tension 67 facilitates ease of hand entry into opening 30 as the 30 user may grasp extension 67 to manipulate ~love lO into position and the difference in the len~th of sheet material 12 and 14 on sides 66 and 68 of opening 30 enables the user to easily part the plys of thermoplastic sheet material 12. Once glove 10 is in position on the users hand, with the user's thu~b in thumb poxtion 28 and the u~er's fingers in finger portion 26, arcuate cut 32 permit~ the user full movement of his thumb. The semi-circular configurat.ion 62 positioned at end 64 of arcuate cut 32 erves to prevent splitting of the sheet material 12 and 14 upon movement of the user'~ thumb.
I-t will be apparent to one skill~d in the art variou~ refinement which oan be made to the invention 10 which can not be illus-trated in the drawings. The entry of the user 1 5 hand can be facilitated by placing a powder between the ply8 of thermoplastic sheet material 12. Tissue sheet material 14 which serves as the outer working surface of glove 10 can be specially adapted for 15 particular tasks. Tis~ue 14 can be mad~ of an ab~orbent material for delicate cleanirlg jobs, or abrasive material for u~e when scrubbing. It will further b~
apparent to one skilled in the art that one ply Df ti~sue 14 can be made of absor~ent material while th~
20 other ply of tis~ue 14 can be made of abrasive material to permit glove 10 to have multiple use. Tissue 14 can al~o be tr~ated with a variety of chemicals to ~l-ter it's properties, as with a fire retardant for use when working with gasoline or other flamable~.
The present invention relates to a disposable ylove, toge-ther with a method and apparatu~ for manufac-turing the same.
5 BAC:KGROUND OF TI~E INVENTION
There are numerous applications in our society where a covering for the hand is required. One example is for the serving of bakery goods, as the clerk does not wish to be seen to directly handle the customer's 10 purchase. This need i~ presently being fulfilled by the clerk placing his or her hand in a polyethylene bag.
There are many disadvantages to using a bag. It is often difficult to find the opening in which one is to insert ones hand. The bag fall~ o~f the hand, often at 15 an inopportune moment, and it i8 difficult to manipulate article~ properly.
The obvious solution to the problem i5 to form the polyethylene into a glove which will conform to the hand 20 and be di~posable when the task i~ completed. This ha~
not been accomplish~d due to a number of problems. One problem is that upon application of heat to a thin film of polyethylene to form a glove, the polyethylen~ film disintegrates. The use of alternate materials has 26 proven too costly, which inhibit~ use as a "dispo~able"
glove. Another problem is one of functional design, as the attempts to resolve the problem have tended to be in~erior products which add an addi-tional problem of tearing to the problems inherent i~ plastic bags.
SU~ARY OF TE~ IN~E~TION
What is r~quired is a method ~f making thermoplastic material into disposable ~loves. What is required iY a glove that can readily be placed upon the .~
~3~
hand and o~ce in place will ~tay there and permit a full ranye of hand func-tion.
According to one aspect o~ the invention there is provided a method of convertiny sheet material into gloves, which is comprised of the steps of arranging she~t material with two inner plys of thermoplastic between outer ply8 of tissue. Then, applying heat to one of the out~r plys of tissue in the outline of a 10 glove, such that the inner plys of the~moplastic bond the plys of sheet material together to form a glove with an openiny alon~ one side to permit hand entry.
Although beneficial results may be obtained through 15 use of the method de~cribed, the sheet material between the diyits will form a web like a baseball glove that restrict~ movement, and the ~love will not be universal in fit. Consequently, even more beneficial re~ults can b~ achieved, if the preferred features are added of 20 having the glove in -the form of a mitten, and including the further ~tep of cuttiny an arcuate cut from the inside of the thumb to the side of the sheet material adjacen-t the thumb, thereby facilitating movement of the thumb.
According to another aspect of the iTlvention there is provided an apparatus for u~e in converting sheet material into glove~ which is compri~ed of a body; and a metal plate mounted on the body with at lea~t one 30 opening in the ~hape of a glove. Mean~ are provided for heating the plate. Mean~ are provided for pivotally mounting the body such that the body may be mounted to a thermally insulated ~urface and moved between a position where the plate engages the surface, and a position 3~ where the plate i~ spaced from th0 ~urface.
According to another aspect of the invention there is provided a disposable glove which is comprised of two inner plys of thermoplastic ~heet material between outer plys of tissue ~heet material, ~ealed together to ~orm a glove with an opening along one ~ide to permit hand entry.
Althouyh beneficial results may be obtained through us~ of the disposable glove de~cribed, as previously 10 mentioned, the sheet material between the digits will form a web like a baseball glove that restrict~
movement, and the glove will not be universal in f it.
Even more beneficial results can be achieved, therefore, if the preferred features are added of having the glove 15 in the ~orm of a mitten having a perforated arcuate cut from the inside of the thumb to the 3ide of the sheet material ddjacent the thumb, thrreby ~acilitatin~
movement of the thumb.
Although beneficial re~ults may be obtained from using tha described di~posable glove, even more benef icial results may be obtained i f the opening to the glove is modified in accordance with the preferred embodiment to facilitate entry of ~ hand into the 25 opening, This can be accompli~hed by adding to the described di~posable glove the preferred feature of -the openin~ having a first side and a second ~ide, the plys of sheet material on the first ~ide of the opening being longer than the plys of sheet material on the second 30 side of the opening, thereby forming an extension.
Although beneficial re~ults may be obtained from using the de cribed di~posable mitt, even more beneficial re~ults may be obtained if for the : 35 .
' ~
~ 28~5~
~onvenienee o the consumer the disposable mit-ts are dispensed in rolls. If the gloves are dispen~ed in pair~ -the thumhs can be placed in an extended position which prolongs the effective life oP the glove.
According to this aspec-t of the invention there is provided a disposable glove which is compris~d o~ a roll of two inner ply5 of thermopla~tic shee-t material between outer plys of tissue sheet material, sealed toye-ther to form pairs of mitten~, the roll having 1~ opposed sides, each pair of mittens having interlocking thumb~ and being separated by perforation~, openings to permit hand entry into the mitten~ being along the sides of the roll, each pair of mitten~ beîng separated from an adjoining pair of mitten~ by perforatio~s.
Although beneficial re~ults may be obtained from using the described dispoYable mitt, even more beneficial re~ults may be obtained if modifications are made to the outer ply of ti~aue material to make it 20 particularly suited for a ~elected usage. By way of example, the outer ti~5ue can b~ made of an ab~orbent material for delicate cleaning job3, or abrasive material for use when scrubbing. The tis~ue can al~o be treated with a variety of chemicals to alter it 18 25 prop~rties~ By way of example, the ti8SUQ could be treated with a fir~ retardant for u~e when working with yasoline or other flamables.
~RI~F DESO~IPTIO~_OF T~ D~WINGS
The~e and other features of the invention will become more apparent from the following descrip-tion in which refererlce i~ made to the appended drawing~, wherein:
FIGUR~ 1 i9 a per~pective view illustrating a first 35step of the preferred method.
FIGURE ~ is a peIspective vie~ of a preferred embodiment of a dispos~ble glove made i~ accordance with the invention.
FI~URE 3 is a perspective view of a preferred embodiment of an apparatus.
FIG~R~ ~ is a perspective view illustr~ting the use of the apparatus of ~IG~R~ 3.
FIGUR~ 5 is a perspective view of the di~posable glove of FIGURE 2, dispensed in roll~.
1~ FIGUR~ 6 i~ a perspective view ~f an alternate embodimen-t of the invention.
D~TAl~D D~SCRIPTI0~ 0~ THE PRÆ~E~R~D ~BODI~ENT
The preferred method will now be described with 15 re~erence to ~IGUR~S 1 and 2. The p~eerred apparatus which is used in carrying out the msthod will ~ow be described with reference to FIG~RES 3 and 4. The preferred embodiment, generally designated by reference numeral 10, i~ a disposable glove, which will now be 20 described with reEerence to FIG~RÆ 2. Variation~ of di~posable glove 10 will be de~cribed with reference to FIG~R~S 5 and 6.
The preferred method permit~ thermoplastic ~heet 25 material 12 and tissue sheet material 14 to be made into gloves 10 and consi~t~ of the following described steps.
Firstly, referring to ~IG~R~ 1, arran~in~ ~heet material 12 and 14 ~uch that there are two inner ply9 of thermoplastic 12 b~tween ou~er ply5 of ti~sue 14. For 30 -th~ purpose of this description, the four side~ of the rectangular sh~et material illustrated shall be de~ignated by numeral~ 16, 18, 20, and 22. Secondly, applyiny heat to one of the outer ply~ of tissue 14 in the outli~e of a mitten 24, ~uch that the inner ply~ of 35 thermoplastic 12 bond the ply8 of ~heet material 12 and l~. Onc~ shee-t material~ 12 and 14 bond together, an unsealed pocket 15 i8 fosmed. Pocket 15 is in the outline of mitten 24 with a finger portion 26, and a thumb portion 28, as illu~trated in FI~R~ 2~ Pock~t 15 has an unsealed opening 30 along side 16 to permit hand entry. Thirdly, cutting an arcuate cut 32 from between finger portion 26 and thumb portion 28 to side 18 of glove 10 adjacent the thumb portion 28.
It will be apparent to one skilled in the art, that the application of heat directly to thermoplastic shee-t material 12 would result in thermoplastic 12 disintegrating. The addition of tissue sheet material 14 enables heat direct heat to be applied to form glove 15 10. The amount of heat required to ~eal sheet material 12 and 14 together depends upon the thicknes~ of material used. By way of example, the applicant is presently uslng thermoplastic and tissue sheet material which are 1/2 of a millimetre in thickness. The heat 20 applied to the de~cribed thickness of material is approximately 500 degrees fahrenheit. Prior to developing the apparatu~ which will b~ hereinaf ter describ~d, proto-type~ where constructed by the applicant u~ing a household cloth~ iron. Although the 25 type of glove illustrated in the preferred embodimen-t i~
a mitten it will be apparent to one ~kill~d in ths art that glove~ wi-th separated digits can also be con~tructed by the described method. The mitten provides distinct advantages as there need only be 30 ~mall, medium and large sizes. Although the preferred embodiment has an arcuate cut to facilitate movement oE
the thumb, it will be app~rent to onc ~killed in the art that by spreading the Einger~ a glove can be constructed with a web between the f ingers which resembles and 3~ functions much like a baseball glove. If de~ired, the ~?~ 51 web between the digi-ts could be cut to permi-t indeperldent movement of each f inger .
Apparatu~ 34 as illu~trated în FIGUR~S 3 and ~ has as its primary component a rectangular body 36. For the purpose of this description the sides of rectan~ular body 36 ~hall be designated by reference numerals 38, 40, 42, and 44, and the face of body 36 shall be designated by reference numeral 46. A metal plate 48 10 is mounted to face 46 of body 36. Plate 48 has two opening~ 50, both of which are in the shape of a mitten.
Although not vi~ible in th~ illustrations, an electric heating element i8 positioned within plate 4~, which, when connec-ted to a power source, results in plate 48 15 bein~ heated. "C" clamps 52 are attached by hinges 54 to Qide 38 of body 36. A handle 56 i9 attached to ~ide 42 of body 36.
The operation of apparatus 34 will now be described 20 with re~arence to FI~RES 3 and ~. In FI~RE 3, apparatus 34 i8 shown as being attached to an ironing board with a thermally in~ulated cover, which has been de~ignated by reference numeral 58. Ironi~ board 58 has a ~ontact surface 80. In order to use apparatu~ 34, 25 it must be attach~d by "C" clamps 52 to a base, suoh as ironing board 58. It is pr~erable if the base is thermally in~ulated so that it is not damaged by the application of heat. "C" clamps 52 are attached by hingeq 54 to side 38 of body 36. Hinges 54 permit body 30 36 to be moved between a ~irq-t position where the plate 48 engage~ surface 60 of ironing board 58, and a second position where plate 43 i~ spaced from ~ur~ace 60 of ironing board 58. With body 36 in the ~econd position, sheet~ of thermoplastic material 12 and sheets o~ ti~sue 35 material 14 are placed on surface 60 of ironing 'ooard 58 ~ ~`3'~ 5~
directly below plate 48. As de~cribed in relation -to -the pre~erred method, sheet material 12 and 14 mu~t be arranged such that there are two inrler plys of thermoplastic 12 between outer plys of tissue 14. The electric element in plate 48 i~ therl connected to a power source to heat plate 48, until plate 48 has reached sufficient heat to bond the thermopl~-tic mat~rial 12 with the tissue material 14. For @xample, a heat of 500 degrees fahrenheit i~ sufficient where the 10 thickne~s of each ply of material i8 . 5 of a millimetre, for a total thickness of 2 millimeters. Body 36 is moved to a Eirst position, and maintained i~ position for 2 to 3 seconds. When in -the firs-t position plate 4a heat seal~ sheet materials 12 and 14. However, the 15 openings 50 in plate 48 leave an un ealed pocket 15 between the plys thermoplastic sheet material 12 and a~
unsealed opening 30 along sid& 16 to permit hand en-try.
Th~ described apparatus was developed a~ an 20 alterna-tive to pressing the outline of a glove on shee-t material 12 and 14 u~ing an iron. It will be apparent to one skilled in the art that a ~imilar result can be achieved by having two matins plates, and tbat there are : numerou~ ways to mechanically arrange the movement of 25 the plates between fir~t and second positions. It will be apparent to one skilled in the art that instead of ironing board 58 an ordinary table may be used provided that it is protected by a thermally insulated pad where plate 48 contacts the table when body 36 in thz first 30 position.
Disposable ~love 10 consists o~ two inner plys of thermoplastic sheet material 12 between outer plys of tissue sheet material 14. For the purpose of this 35 description, the four sides of the rectangular sheet 5:~
material illustrated shall be designated by numerals 16, 18, 20, ~nd 22. Sheet material 12 and 14 are sealed toge-ther to form a pocket 15 with an unsealed opening 30 along side 16. Pocket 15 is in the outline of mit-t~n 24 with a finger pvrtion 2Z, and a -thumb portion 28, as illustrated in FIGURE 2. Glove 10 has a partially perforated arcuate cut 32 which extends from between firlger portion 26 and thumb portion 28 to side 18 o~
glove 10 adjacent the thumb portion 28. A semi-circular 10 configuration 62 i5 positioned at one end 64 oE arcuate cut 32. Opening 30 has a first side 66 and a second side 68. The plys of sheet material 12 and 14 un firs-t side 66 of opening 30 are longer than the ply8 of sheet material 12 and 14 on ~econd side 68 o~ opening 30 15 forming an extension 670 The outline of a mitten 24 i8 marked in coloured ink on glove 10. The thermoplastic sheet material 12 visible on extension 67 is also coloured.
The operatiorl of glove 10 will now be described with re~erence to FIG~RE 2. Although glo~e 10 is rectangular in appearance, unsealed opening 30 can easily be located with reference to the outline of mitten 24 marked in ink, and the coloration of extension 25 6~. These features clearly indicate to -the u~er the correct orientatiGn of the glove. The u er then grasps glove 10 by extension 67 and inserts his hand between the plys of thermoplastic sheet material 12. E~tension 67 facilitates ease of hand entry into opening 30 as the 30 user may grasp extension 67 to manipulate ~love lO into position and the difference in the len~th of sheet material 12 and 14 on sides 66 and 68 of opening 30 enables the user to easily part the plys of thermoplastic sheet material 12. Once glove 10 is in position on the users hand, with the user's thu~b in thumb poxtion 28 and the u~er's fingers in finger portion 26, arcuate cut 32 permit~ the user full movement of his thumb. The semi-circular configurat.ion 62 positioned at end 64 of arcuate cut 32 erves to prevent splitting of the sheet material 12 and 14 upon movement of the user'~ thumb.
I-t will be apparent to one skill~d in the art variou~ refinement which oan be made to the invention 10 which can not be illus-trated in the drawings. The entry of the user 1 5 hand can be facilitated by placing a powder between the ply8 of thermoplastic sheet material 12. Tissue sheet material 14 which serves as the outer working surface of glove 10 can be specially adapted for 15 particular tasks. Tis~ue 14 can be mad~ of an ab~orbent material for delicate cleanirlg jobs, or abrasive material for u~e when scrubbing. It will further b~
apparent to one skilled in the art that one ply Df ti~sue 14 can be made of absor~ent material while th~
20 other ply of tis~ue 14 can be made of abrasive material to permit glove 10 to have multiple use. Tissue 14 can al~o be tr~ated with a variety of chemicals to ~l-ter it's properties, as with a fire retardant for use when working with gasoline or other flamable~.
2~
~ illustrated in FIGV~E 5, disposa~le glove 10 may be di~pensed in rolls ~0 having opposed Yides ~2, by placing perforationY 74 along sides 18 and 22. Side 16 of glove 10 along which opening 30 i~ po~itioned 30 corresponds to one of ~ide-~ ~2 of roll ~0. When 80 used it is preferable that arcuate cut 32 be joined with perforations ~5 until separated by the user, and that arcuate cut 32 doe~ not extend all the way to side 18 of sheet material 12 and 14.
5~
When using a roll 70 containing a plurality of gloves 10, the u~er tears roll 70 along perforation~ 74 which connect side 22 of glove 10 with ~ide 18 of glove 10'. Perforations 7B' and the fact that arcuate cut 32' starts back from side 18', prevent tearing oE arcuate cut 32' of glove 10' as glove 10 is separated. It should be noted that side 16 of glove 10 along which unsealed opening 30 is positioned i~ located along ~ide ~2 of roll ~O. Once detached from the roll ylove 10 is 10 used a~ has previouYly been de~cribed.
Gloves 10 may be dispen~ad in pairs. Dispensing gloves 10 in pairs enables the de~ign of the glove~ to be cimplified and advanta~es to be obtained as will be 1~ hereinafter described. Referring to ~IG~R~ 6, two înner ply8 of thermoplastic sheet material 12 are arranyed between outer ply5 of tissue ~heet material 14. The plys of sheet material 12 and 14 are sealed together to form a pair of pockets 15 in the shape of mittens 24.
Pocket 15 has a finger portion 26, and a thumb portîon 28. The pair of mittens 24 are joined along side 18 with interlocking thumb portion~ 28 ~eparated by perforations 76. Unsealed npenings 30 are located alon~
~ide 16 of sheet material 12 and 14 to permit hand entry 25 into pockets 15. If it is desired to dispense the pair of mitten~ ln rolls ~O, each pair o mitterls 24 are ~eparated from an adjolning pair of mittens ~no-t shown) by perforations ~ which are positioned along side 22.
Side 16 o~ shaet material 12 and 14 having un~ealed 30 opening 30 must be po~itioned alon~ side~ ~2 of roll ~O.
When u~iny a pair of gloves 10 di~pen~ed in pairs, the user simply separates the pair along perforations 76. The use of the gloves 10 is then as has previou~ly 3~ been described. IE the pair of gloves 10 i~ dispensed from a roll ~0, side 22 of one ylove 10 of th~ pair îs connected by perforations 74 to side 22 o~ another pair (not shown). The user merely tear~ a pair of ~loves 10 from roll 70, and ~eparates them for use as has previou~ly been describe~.
It will be apparent to one s~illed in the art that advantages may be ohtained by dispensing gloves 10 in pairs with interlocking thumb portions 28 joined along 10 side 18. Unrestric-ted use of the thumb is o'otained merely be separating the pair of ~love~ along perforations ~6. This mean~ that arcuate cut 32 iB not required, nor is semi-circular configuration 62. In addition, thumb por-tion 28 can be placed at an angle, 1~ which ~ive~ a greater range of movement to ~he thumb without as great a tendency for the material to tear.
This is possible due to the fact that thumb portion 28 may extend beyond the usual width of ~love 10.
2~ It will be apparent to one skilled in th~ art that the development of a non-stick coating sold under the trademark "Tef lon", makes po3sible the use of apparatug 34, with thermopla~tic materials without an interveniny layer of ti~ue. Such an apparatus would be more expensive, but would be identical to the described apparatu~ with, of course, the addition of a teflon coating on plate 48. Gloves made in this fashion would not be in accordance with t}le preferred method.
It will be apparent to one ~killed in the art that two ply thermoplastic gloves made on a teflon coated version of apparatus 34 would provide beneficial result~. However, even more bene~icial results could be obtained if such gloves incorporated in their design 35 ~ome or all of the preferred features taught in this S~
application. One fea-ture readily adaptable -t~ two ply thermoplastic gloves is having the glove in the form of a mitten with a thumb portion and a finger portiorl; and having a partially perforated arcuate cut Erom betw~en the -thumb portion and the finger portion to substantially th~ edge of the sheet material adj~cent the thumb. Another feature readily adaptable to two ply -thermoplastic glove~ i~ having a semi-circular configuration at the end of the arcuate cut between the 10 thumb portion and the Eingar portion, to prevent splitting of -the sheet material upon movement of the thumb. Another feature readily adaptable to two ply thermoplastic gloves i5 having an openin~ with a fir~t side and ~ second side, the ply of sheet material on the 15 fir~t side of the openin~ bein~ lonyer than the ply of sheet material on the second side of the openin~, thereby forming an e~ten~ion which facilitates ea~e of hand entry into the opening. Another feature readily adaptable to two ply thermoplastic gloves is having a 20 shape of a mitten marked on the outside of the glove, -thereby clearly indicating -to the UBer the correct orientation of the glove. Another feature readily adaptable to two ply thermoplastic glove9 i5 haviny the ~heet material being dispensed in roll9 having opposed 2~ ~ides, the sheet material being connected by perforation~ along two opposed ~ide~ with the opening to each glove being alony one of the oppo~ed ~ide~ of the roll. Another preferred f~ature readily adaptable to two ply thermopla~tic glove~ i~ having a pair of mitten~
30 ~ach of which h~s a thumb portion and a finger portion, the pair of mittens bein~ joined along one side with interlocking thumb portions ~eparated by perforations, each mitten having an opening~ to permit hand entry into the mit-ten. It will finally be apparznt to one 3~killed in the art that further modifications may be made withc:ut departing from the ~icope of the invention.
~6 ~5
~ illustrated in FIGV~E 5, disposa~le glove 10 may be di~pensed in rolls ~0 having opposed Yides ~2, by placing perforationY 74 along sides 18 and 22. Side 16 of glove 10 along which opening 30 i~ po~itioned 30 corresponds to one of ~ide-~ ~2 of roll ~0. When 80 used it is preferable that arcuate cut 32 be joined with perforations ~5 until separated by the user, and that arcuate cut 32 doe~ not extend all the way to side 18 of sheet material 12 and 14.
5~
When using a roll 70 containing a plurality of gloves 10, the u~er tears roll 70 along perforation~ 74 which connect side 22 of glove 10 with ~ide 18 of glove 10'. Perforations 7B' and the fact that arcuate cut 32' starts back from side 18', prevent tearing oE arcuate cut 32' of glove 10' as glove 10 is separated. It should be noted that side 16 of glove 10 along which unsealed opening 30 is positioned i~ located along ~ide ~2 of roll ~O. Once detached from the roll ylove 10 is 10 used a~ has previouYly been de~cribed.
Gloves 10 may be dispen~ad in pairs. Dispensing gloves 10 in pairs enables the de~ign of the glove~ to be cimplified and advanta~es to be obtained as will be 1~ hereinafter described. Referring to ~IG~R~ 6, two înner ply8 of thermoplastic sheet material 12 are arranyed between outer ply5 of tissue ~heet material 14. The plys of sheet material 12 and 14 are sealed together to form a pair of pockets 15 in the shape of mittens 24.
Pocket 15 has a finger portion 26, and a thumb portîon 28. The pair of mittens 24 are joined along side 18 with interlocking thumb portion~ 28 ~eparated by perforations 76. Unsealed npenings 30 are located alon~
~ide 16 of sheet material 12 and 14 to permit hand entry 25 into pockets 15. If it is desired to dispense the pair of mitten~ ln rolls ~O, each pair o mitterls 24 are ~eparated from an adjolning pair of mittens ~no-t shown) by perforations ~ which are positioned along side 22.
Side 16 o~ shaet material 12 and 14 having un~ealed 30 opening 30 must be po~itioned alon~ side~ ~2 of roll ~O.
When u~iny a pair of gloves 10 di~pen~ed in pairs, the user simply separates the pair along perforations 76. The use of the gloves 10 is then as has previou~ly 3~ been described. IE the pair of gloves 10 i~ dispensed from a roll ~0, side 22 of one ylove 10 of th~ pair îs connected by perforations 74 to side 22 o~ another pair (not shown). The user merely tear~ a pair of ~loves 10 from roll 70, and ~eparates them for use as has previou~ly been describe~.
It will be apparent to one s~illed in the art that advantages may be ohtained by dispensing gloves 10 in pairs with interlocking thumb portions 28 joined along 10 side 18. Unrestric-ted use of the thumb is o'otained merely be separating the pair of ~love~ along perforations ~6. This mean~ that arcuate cut 32 iB not required, nor is semi-circular configuration 62. In addition, thumb por-tion 28 can be placed at an angle, 1~ which ~ive~ a greater range of movement to ~he thumb without as great a tendency for the material to tear.
This is possible due to the fact that thumb portion 28 may extend beyond the usual width of ~love 10.
2~ It will be apparent to one skilled in th~ art that the development of a non-stick coating sold under the trademark "Tef lon", makes po3sible the use of apparatug 34, with thermopla~tic materials without an interveniny layer of ti~ue. Such an apparatus would be more expensive, but would be identical to the described apparatu~ with, of course, the addition of a teflon coating on plate 48. Gloves made in this fashion would not be in accordance with t}le preferred method.
It will be apparent to one ~killed in the art that two ply thermoplastic gloves made on a teflon coated version of apparatus 34 would provide beneficial result~. However, even more bene~icial results could be obtained if such gloves incorporated in their design 35 ~ome or all of the preferred features taught in this S~
application. One fea-ture readily adaptable -t~ two ply thermoplastic gloves is having the glove in the form of a mitten with a thumb portion and a finger portiorl; and having a partially perforated arcuate cut Erom betw~en the -thumb portion and the finger portion to substantially th~ edge of the sheet material adj~cent the thumb. Another feature readily adaptable to two ply -thermoplastic glove~ i~ having a semi-circular configuration at the end of the arcuate cut between the 10 thumb portion and the Eingar portion, to prevent splitting of -the sheet material upon movement of the thumb. Another feature readily adaptable to two ply thermoplastic gloves i5 having an openin~ with a fir~t side and ~ second side, the ply of sheet material on the 15 fir~t side of the openin~ bein~ lonyer than the ply of sheet material on the second side of the openin~, thereby forming an e~ten~ion which facilitates ea~e of hand entry into the opening. Another feature readily adaptable to two ply thermoplastic gloves is having a 20 shape of a mitten marked on the outside of the glove, -thereby clearly indicating -to the UBer the correct orientation of the glove. Another feature readily adaptable to two ply thermoplastic glove9 i5 haviny the ~heet material being dispensed in roll9 having opposed 2~ ~ides, the sheet material being connected by perforation~ along two opposed ~ide~ with the opening to each glove being alony one of the oppo~ed ~ide~ of the roll. Another preferred f~ature readily adaptable to two ply thermopla~tic glove~ i~ having a pair of mitten~
30 ~ach of which h~s a thumb portion and a finger portion, the pair of mittens bein~ joined along one side with interlocking thumb portions ~eparated by perforations, each mitten having an opening~ to permit hand entry into the mit-ten. It will finally be apparznt to one 3~killed in the art that further modifications may be made withc:ut departing from the ~icope of the invention.
~6 ~5
Claims (8)
1. A disposable glove comprising two plys of rectangular thermoplastic sheet material having four sides, the sheet material being sealed together to form a glove with an opening along one of the sides to permit hand entry, the glove being a mitten having a thumb portion and a finger portion and having an arcuate cut extending from a side adjacent the thumb portion to between the thumb portion and the finger portion of the glove, thereby permitting the thumb portion and the material adjacent the thumb portion to be manipulated relative to the finger portion.
2. A disposable glove as defined in Claim 1, the two plys of thermoplastic sheet material being between outer plys of tissue material.
3. A disposable glove as defined in Claim 1, the arcuate cut being partially perforated with a plurality of uncut portions along the length of the cut.
4. A disposable glove as defined in Claim 1, having a semi-circular configuration at the end of the arcuate cut, between the thumb portion and the finger portion, to prevent splitting of the sheet material upon movement of the thumb.
5. A disposable glove as defined in Claim 1, the opening having a first side and a second side, the plys of sheet material on the first side of the opening being longer than the plys of sheet material on the second side of the opening thereby forming an extension which facilitates ease of hand entry into the opening.
6. A disposable glove comprising two plys of thermoplastic sheet material dispensed in a roll having opposed sides, the sheet material being sealed together to form a plurality of gloves, each glove having an opening along one of the opposed sides of the roll to permit hand entry, each glove being separated from an adjacent glove by perforations which extend between the opposed sides whereby the glove may be detached from the roll, the glove being a mitten having a thumb portion and a finger portion and having a partially perforated arcuate cut with a plurality of uncut portions along the length of the cut, spaced from the perforations which extend between the opposed sides and extending between the thumb portion and the finger portion of the glove, thereby permitting the thumb portion and the material adjacent the thumb portion to be manipulated relative to the finger portion after fracture of the uncut portions.
7. A disposable glove as defined in Claim 6, the two plys of thermoplastic sheet material being between outer plys of tissue material.
8. A disposable mitten, comprising two plys of thermoplastic sheet material dispensed in a roll having opposed sides, the sheet material being sealed together to form a plurality of mittens, each mitten having an opening along one of the opposed sides of the roll to permit hand entry, each mitten being separated from an adjacent mitten by perforations which extend between the opposed sides of the roll whereby the mitten may be detached from the roll, the mitten having a thumb portion and a finger portion and having a partially perforated single cut, extending between the thumb portion and the finger portion, with a plurality of uncut portion along the length thereof, the cut being spaced from the perforations which extend between the opposed sides of the roll to prevent fracturing of the cut when detaching the mitten from the roll, and means at the end of the cut to prevent undesired splitting of the material, wherein once the uncut portions of the cut are fractured the thumb portion and the material adjacent the thumb portion can be manipulated relative to the finger portion.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000571835A CA1284851C (en) | 1988-07-12 | 1988-07-12 | Disposable glove |
| EP19890101809 EP0350562A3 (en) | 1988-07-12 | 1989-02-02 | Disposable glove |
| AU40342/89A AU4034289A (en) | 1988-07-12 | 1989-07-12 | Disposable glove |
| KR1019900700522A KR900701186A (en) | 1988-07-12 | 1989-07-12 | Disposable gloves |
| PCT/US1989/003001 WO1990000357A1 (en) | 1988-07-12 | 1989-07-12 | Disposable glove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000571835A CA1284851C (en) | 1988-07-12 | 1988-07-12 | Disposable glove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1284851C true CA1284851C (en) | 1991-06-18 |
Family
ID=4138368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000571835A Expired - Lifetime CA1284851C (en) | 1988-07-12 | 1988-07-12 | Disposable glove |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0350562A3 (en) |
| CA (1) | CA1284851C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8566965B2 (en) | 2011-10-31 | 2013-10-29 | Kimberly-Clark Worldwide, Inc. | Elastomeric articles having a welded seam that possess strength and elasticity |
| US9707715B2 (en) | 2011-10-31 | 2017-07-18 | Kimberly-Clark Worldwide, Inc. | Elastomeric articles having a welded seam made from a multi-layer film |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2460460A (en) * | 1945-01-15 | 1949-02-01 | Langer Nicholas | Method of heat sealing and apparatus therefor |
| US2790982A (en) * | 1952-10-20 | 1957-05-07 | Lawrence A Schneider | Single use applicator package |
| US3028576A (en) * | 1958-06-02 | 1962-04-03 | Ethicon Inc | Methods and apparatus for making thin plastic gloves |
| US3229875A (en) * | 1964-05-06 | 1966-01-18 | Stoller Daniel | Sheet material storing and dispensing device |
| US3625790A (en) * | 1969-06-26 | 1971-12-07 | Weldon R Ayres | Process for making gloves |
| US3923577A (en) * | 1973-04-02 | 1975-12-02 | Poly Version Inc | Method for making a multi-component article |
| GB2134371A (en) * | 1983-02-04 | 1984-08-15 | Joseph Koumbas | Glove or mitten |
| FR2542980A1 (en) * | 1983-03-23 | 1984-09-28 | Chamaleau Paul | Protective mitten for gripping fuel-dispensing nozzles |
| US4677697A (en) * | 1985-01-14 | 1987-07-07 | Hayes Starr R | Clean up glove |
| DD252795A1 (en) * | 1986-09-17 | 1987-12-30 | Werk Fernsehelektronik Veb | DEVICE FOR PRODUCING SINGLE-SIDED, MULTILAYER AND LENGTH-FERROUSED PLASTIC HOLLOW BODIES |
-
1988
- 1988-07-12 CA CA000571835A patent/CA1284851C/en not_active Expired - Lifetime
-
1989
- 1989-02-02 EP EP19890101809 patent/EP0350562A3/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| EP0350562A2 (en) | 1990-01-17 |
| EP0350562A3 (en) | 1991-04-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKLA | Lapsed |