CA1087531A - Hose construction - Google Patents
Hose constructionInfo
- Publication number
- CA1087531A CA1087531A CA296,432A CA296432A CA1087531A CA 1087531 A CA1087531 A CA 1087531A CA 296432 A CA296432 A CA 296432A CA 1087531 A CA1087531 A CA 1087531A
- Authority
- CA
- Canada
- Prior art keywords
- hose construction
- tube
- set forth
- conductor
- hose
- 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
Links
- 238000010276 construction Methods 0.000 title claims abstract description 57
- 239000004020 conductor Substances 0.000 claims abstract description 40
- 239000002184 metal Substances 0.000 claims abstract description 11
- 238000010292 electrical insulation Methods 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 21
- 239000012815 thermoplastic material Substances 0.000 claims description 11
- 239000000853 adhesive Substances 0.000 claims description 8
- 230000001070 adhesive effect Effects 0.000 claims description 8
- 239000002904 solvent Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 description 7
- 230000003014 reinforcing effect Effects 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 2
- 230000002860 competitive effect Effects 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 101150039167 Bex3 gene Proteins 0.000 description 1
- 101150002998 LCAT gene Proteins 0.000 description 1
- 238000000071 blow moulding Methods 0.000 description 1
- 238000009954 braiding Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920000136 polysorbate Polymers 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 238000010407 vacuum cleaning Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04C—BRAIDING OR MANUFACTURE OF LACE, INCLUDING BOBBIN-NET OR CARBONISED LACE; BRAIDING MACHINES; BRAID; LACE
- D04C1/00—Braid or lace, e.g. pillow-lace; Processes for the manufacture thereof
- D04C1/06—Braid or lace serving particular purposes
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/24—Hoses or pipes; Hose or pipe couplings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L11/00—Hoses, i.e. flexible pipes
- F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
- F16L11/11—Hoses, i.e. flexible pipes made of rubber or flexible plastics with corrugated wall
- F16L11/118—Hoses, i.e. flexible pipes made of rubber or flexible plastics with corrugated wall having arrangements for particular purposes, e.g. electrically conducting
- F16L11/1185—Hoses, i.e. flexible pipes made of rubber or flexible plastics with corrugated wall having arrangements for particular purposes, e.g. electrically conducting electrically conducting
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/0072—Electrical cables comprising fluid supply conductors
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Textile Engineering (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Electric Vacuum Cleaner (AREA)
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
A reinforced convoluted hose construction is provided herein.
The hose construction includes an elongate convoluted tube having alter-nating inwardly facing troughs and crests along the length thereof with the troughs being disposed in helical pattern along the length and at least one electrical conductor-reinforcing member disposed in helically coiled relation within the inwardly facing troughs, the electrical conductor-reinforcing member comprising a central conductor and a braided metal, sleeve-like outer conductor disposed concentrically around the central con-ductor with electrical insulation therebetween, the outer conductor having an electrical insulating sleeve disposed therearound. By these means, the expense of providing a two-wire system is avoided, and a reinforced con-voluted polymeric hose construction, which is particularly suited for use with tank or canister-type vacuum cleaners, is provided.
A reinforced convoluted hose construction is provided herein.
The hose construction includes an elongate convoluted tube having alter-nating inwardly facing troughs and crests along the length thereof with the troughs being disposed in helical pattern along the length and at least one electrical conductor-reinforcing member disposed in helically coiled relation within the inwardly facing troughs, the electrical conductor-reinforcing member comprising a central conductor and a braided metal, sleeve-like outer conductor disposed concentrically around the central con-ductor with electrical insulation therebetween, the outer conductor having an electrical insulating sleeve disposed therearound. By these means, the expense of providing a two-wire system is avoided, and a reinforced con-voluted polymeric hose construction, which is particularly suited for use with tank or canister-type vacuum cleaners, is provided.
Description
53~1l ~ LiS invent.ion r~LItes lio reir~Eorcc~l c~nvoluted hose cons-tr~wtion sui-table for use in ~c or c.u~isle.r t~pc vaculm clean~rs.
Tc~c or canister type vacuum cleaners in cc~mon use oEten utilize Elexible po.Lymeric hose constructions each oE whi.ch i.s suitc~ly connee-tecl a-t one end thereof to the -tc~c of the vacuum cl~aner ancl the opFosite end of each o:E such hose cons~ructions has a hose connector, or the lilce, pro-vided wi-th a cleaniny irnplemen-t, often in the fo.rm oE a rotatable eleaning brush, whieh is electrie motor powered wh~reby it is necessary to provide electrical power to such motor and this is usually aehieved using an elec-trieal canduc-tor disposed along the hose co~struction. Vacuum eleaner hose c~nstruetions of this type are commDnly made using tubes of eo~paratively thin polymerie material and eaeh of su~h tubes is reinEoreed against col-lapse by a reinforcing m~mber often in tha form of helically eoiled ~7ire;
and, it is known in the art to provide helieally eoiled wire whieh serves as a reinforeing means against eollapse of the t~ba as well as for convey ing eleetrieity. However, eaeh of the previously proposed wires of this type has baen in tha ~orm of a single electrieal eonduetor ~aking it neces sary to provide an additional lead for ~he usual tw~ wire system and in the highly eompetitive vaeuum eleaner hose makin~ industry the m~ans and 20 techniques employed heretofore have been eomparatively expensive to pro- -vlde sueh two wire system. The eomparative expense of sueh a tw~ wire sys-tem has been further increased when a hose eonstruetion is required where a plurality of tw~ wire systems is to be provided. `;
It is a feature of one broad aspeet of this invention to provide a reinforeed eonvoluted polymerie hose oonstruction which is partieularly adapted for use with t~nk or canister type vaeuum cleaners, or the like. .
.
... .... ..
3~
A feature of another aspect oE this invention i5 to provide a hose construction which utlli~es at least one easily ~nade and coiled elec-trical conductor-reinforcing member having a plural.:i.ty oE con~uctors and whicll:is d:;sposed ln helically col.led relatlon w:i~.h:ln an elon~ate compara-tively th:ir~ tube.
A ~eature of yet another aspect of this :invelltion is to provide a hose construction of the character mentloned which util:l.zes at least one electrical conductor-re:LnEorc:Lrlg member.
I A feature of still another aspect oE th:is invention is to provide a reinforced convoluted hose construction comprised of an elongate convolu-ted tube having alternating inwardly facing troughs and crests along the length thereof with the troughs being disposed in helical pattern along the length. .~ :
By one broad aspect of this invention, a reinforced convoluted .
hose construction is provided, comprising: an elongated convoluted tube .
having alternating inwardly facing troughs and crests along the length : :
thereof, the troughs being disposed in a helical pattern along the length, ~ .
and at least one electrical conductor-reinforcing member disposed in a helically coiled relation within the inwardly facing troughs, the electrical conductor-reinforcing member comprising a central conductor and a braided metal, sleeve-like outer conductor disposed concentrically around the central conductor with electrical insulation therebetween, the outer con-ductor having an electrical insulating sleeve disposed therearound.
By one variant, the tube is of substantially uniform wall thick-ness throughout, and is made of a polymeric material.
By one variation thereof, thetube is made of a thermoplastic material.
By another variation, the insulating sleeve of the ouLer con-ductor is made of a polymeric material compatlble with the polymeric mater-:
ial of the tube, and tlle hose construction further includes means bonding :: ~ :: :
the insulating sleeve to t~ ~ ~ 7e.
By other variations, the bonding means may be in the form of adhesive means, or may be in the form of a heat-fused area.
By a further variant, the central cond-lctor 19 a single compara-tively rigid wire of circ~Ilar cross-section.
By another variant, the convoluted tube is a seamless tube.
By a further variant, the central conductor is a rigid metal wire of circular cross-section, and the convoluted tube is a seamless tube made of thermoplastic material.
By a further variant, the alternating inwardly facing troughs and crests comprise a plurality of sets of troughs and crests and the hose `
construction further includes at least one other electrical conductor-reinforcing member, the other electrical conductor-reinforcing member com-prlslng a central conductor and a braided metal, sleeve-like outer conduc- ~
tor disposed concentrically around the central conductor with electrical ~ ;
insulation therebetween, the outer conductor having an electrical insulating ~`
sleeve disposed ~therearound, the one electrical conductor-reinforcing ~
.
member being disposed in helically coiled relation within associated troughs ~ ~
....
of one of the sets, and the other electrical conductor-reinforcing member being disposed In helically coiled relation within associated troughs of ~; ~ another of the;sets.
By a variation thereof, the tube is of substantially uniform ~-wall thickness throughout and is made of~a polymeric material.
By another variation, the tube is made of a thermoplastic material. -~`~ By yet another variation, the insulating sleeve of the outer con-ductor of the~other electrical conductor-reinforcing member is made of a polymeric~material compatible with the polymeric material of the tube, and the~hose construction further comprises menns bonding the Insulating sleeve to the tube.
By other~varIants, the bondina means comprIses adhesIve means~ or ~ 4 ~
~37~;i3i~
comprises a heat-fused area.
By yet n furtl~er vnrlrltlpn thereo~, thebondlrlg means ls deflned by softenlng of adJoin:Lrlg poLymer:Lc port.Lons by solvent ~ct:Lon ~md rehardell:ing thereof.
By anotller varlallt, the central conductor comprises a single comparatively rigid wire of circular cross~se!ct:lon.
By a Eurther variation, the tube is a seamless blow-molded tube, In the accompanying drawing, I Figure 1 is a perspective view with parts in elevation, parts in j, ~
' ~"
:
' ` ~ :
.~. 30 - 4 ~ .
- a - ~
.. . . :
~ ~753~L
cross-section, parts broken away, ~md E~rts shown schema-ti.call,y, illustrat-ing an ~xen~lary vacu~n cle~ling appara-tus wl'lich ~n~loys the hose construc~
tion of an aspect oE ~his invffntion;
FIG. 2 is an e~Larged :Eragnen-tary view with parts in elevation cmd parts in cross-sec-tion particularly illustrating the dfftails of the hose construction o~ c~n aspect o~ this inv~ltian which has an electrical conductor-reinforcing m~mber disposed in helical:Ly coiled r~Lation there-within;
FIG. 3 is an enLarged Eragn~n-tary view with parts in elevation and parts in cross-section particuLarly illustrating details of the elec- ~ -trical conductor-reinforcing member of the hose oonstruction of FIG. 2; and FIG. 4 is a view similar to FIG. 2 illustrating another exen~lclry embodiment of the hose construction of anothffr aspect of this invention.
-4b-. . i . . ' ~ . . . .. . .. ~
7S3~
Reference i8 now ma~e to FIG. 1 of the drawlng which illustrates an exemplary vacuum cleaning apparatus which is designated generally by the reference numera~ 20 and such apparatus has a tank or canlster 21 which has a vacuum tube 22 extending therefrom and the tllbe 22 is particularly adapted to have a hose assembly 23 and in particular a hose connector 24 of such assembly 23 connected thereto. The hose assembly 23 has an integral hose connector 25 provided at ~ts opposite end and assembly 23 utillzes one ex~
emplary embodimenr of a hose construction 26 of an aspect of ~his invention as its vacuum hose with tha hose connectors 24 and 25 suitably fixed at the ~-opposite ends thereof using any guitable technique known in the art.
Th~ apparatus 20 is provided with electrical power from a suita-ble power source (not shown) and has a female electrical connector or re- ;:
ceptacle 27 mounted on its tank 21, The receptacle 27 supplies power through an electrical cord assembly 30 to the hose assembly 23 and the cord assembly 30 has a male connector 31 at one end and a female connector 32 at its opposite end with the male connector 31 being received within the re-; ceptacle 27 and the f~male connector 32 being adapted to be operatively con-nected to an associated male connector 33 provided ln the hose connector 24 of the hose assembly 23.
The hose connector 25 of assembly 23 has a female connector 34 ~:~
provided at its outer end and connector 34 is adapted to be opera~i~ely connected with a male connector plug 35 of an electrical cord assembly:36 to supply power to an electric motor 37 of a cleaning instrument 38 (only a , ~ ~ t :
' ;.``' , :
~'7~3~
portiol1 of whlch is sho~n) which comprises the apparatus 20. '1~ lnstru-ment 38 has an lnnar end portlon 39 ac1apted to be operatlv~ly connected with the hose connector 25 and a cleaning instrume.rlt or brush at thct outer end of instrument 38 dr1ven by moto~ 37 is not shown.
The hose construction 26 is of optimum fl~xibility and i8 rein-forced again~t collapse whlle belng aasily constructed using simple tech-niques which are w~ll known in the art and employcd :Ln making a hose con-s~ruction which m~rely has a helical reinforcil1g wire disposed therewithin;
yet, the hose construction 26 is reinforced in the required manner and still provides a plurality of electrical conductors in a dual-purposc member hav-ing a concentric electrical conduc~or-reinforcing wir~ using the above-mentioned simple techniques.
Reference is now made to FIG. 2 of the drawing which is a detailed illustration of the hose construction 26 of an aspect of this invention and such hose construction 26 comprlses an elongated or elongate polymeric tube 41 having alternating inwardly facing troughs 42 and crests 43 along its length; and, the troughs 42 are disposed in a 'nelical pattern along the length of the hose constructlon 26. The hose construction 26 has the above-mentioned dual-purpose member which is designated by the reference numeral 45 and such membe~ is in the form of an electrical conductor~reinforcing member disposed in helically coiled relation within the inwardly facing troughs 42 and it will be appreciated that this reference to inwardly facing troughs 42 is to the fact that such troughs open inwardly toward a central longitudinal axis 46 of the hose construction 26. The dual-purpose electri~
cal conductor- ~
': " -,, ", ':
- 6 - ~
7~
reinforcing member 45 is h~lically coiled utllizing nny sultable apparatus or technique known in the art and preerably the tube 41 .L~s formed as a seam-less oxtruded tube which :Ls extruded around thc pre.formed hc.lically colled member 45 and allowed to cool therearound theroby defining the troughs 42 and crests 43.
The member 45 i9 of such simple const:r-lct:Lon that lt easily pro-cessed in a similar manner as a simple plastic sleeve covered reinforcing wire commonly used in similar vacuum cleaner hose constructions proposed heretofore. The member 45 comprises a ce~tral conductor 47 and an outer sleeve-like or tube-like cond-lctor 50 disposed concentrically around the central conductor 47 with electrical insulation in the form of a compara-tively thick sleeve insulator 51 therebetween; and, it will be seen that the outer sleeve-like conductor 50 has an electrical insulating sleeve 52 dis-posed concentrically therearound. Each of the sleeve members 51 and 52 is made of any suitable polymeric electrical insulating material, e.g. any suitable synthetic thermoplastic material, or the likc.
The central conductor 47 may be made of any suitable me~allic~
material and is preferably in th~ form of a comparatively rigid electrically conducting metal wire of circular cross-section, although the cross-section
Tc~c or canister type vacuum cleaners in cc~mon use oEten utilize Elexible po.Lymeric hose constructions each oE whi.ch i.s suitc~ly connee-tecl a-t one end thereof to the -tc~c of the vacuum cl~aner ancl the opFosite end of each o:E such hose cons~ructions has a hose connector, or the lilce, pro-vided wi-th a cleaniny irnplemen-t, often in the fo.rm oE a rotatable eleaning brush, whieh is electrie motor powered wh~reby it is necessary to provide electrical power to such motor and this is usually aehieved using an elec-trieal canduc-tor disposed along the hose co~struction. Vacuum eleaner hose c~nstruetions of this type are commDnly made using tubes of eo~paratively thin polymerie material and eaeh of su~h tubes is reinEoreed against col-lapse by a reinforcing m~mber often in tha form of helically eoiled ~7ire;
and, it is known in the art to provide helieally eoiled wire whieh serves as a reinforeing means against eollapse of the t~ba as well as for convey ing eleetrieity. However, eaeh of the previously proposed wires of this type has baen in tha ~orm of a single electrieal eonduetor ~aking it neces sary to provide an additional lead for ~he usual tw~ wire system and in the highly eompetitive vaeuum eleaner hose makin~ industry the m~ans and 20 techniques employed heretofore have been eomparatively expensive to pro- -vlde sueh two wire system. The eomparative expense of sueh a tw~ wire sys-tem has been further increased when a hose eonstruetion is required where a plurality of tw~ wire systems is to be provided. `;
It is a feature of one broad aspeet of this invention to provide a reinforeed eonvoluted polymerie hose oonstruction which is partieularly adapted for use with t~nk or canister type vaeuum cleaners, or the like. .
.
... .... ..
3~
A feature of another aspect oE this invention i5 to provide a hose construction which utlli~es at least one easily ~nade and coiled elec-trical conductor-reinforcing member having a plural.:i.ty oE con~uctors and whicll:is d:;sposed ln helically col.led relatlon w:i~.h:ln an elon~ate compara-tively th:ir~ tube.
A ~eature of yet another aspect of this :invelltion is to provide a hose construction of the character mentloned which util:l.zes at least one electrical conductor-re:LnEorc:Lrlg member.
I A feature of still another aspect oE th:is invention is to provide a reinforced convoluted hose construction comprised of an elongate convolu-ted tube having alternating inwardly facing troughs and crests along the length thereof with the troughs being disposed in helical pattern along the length. .~ :
By one broad aspect of this invention, a reinforced convoluted .
hose construction is provided, comprising: an elongated convoluted tube .
having alternating inwardly facing troughs and crests along the length : :
thereof, the troughs being disposed in a helical pattern along the length, ~ .
and at least one electrical conductor-reinforcing member disposed in a helically coiled relation within the inwardly facing troughs, the electrical conductor-reinforcing member comprising a central conductor and a braided metal, sleeve-like outer conductor disposed concentrically around the central conductor with electrical insulation therebetween, the outer con-ductor having an electrical insulating sleeve disposed therearound.
By one variant, the tube is of substantially uniform wall thick-ness throughout, and is made of a polymeric material.
By one variation thereof, thetube is made of a thermoplastic material.
By another variation, the insulating sleeve of the ouLer con-ductor is made of a polymeric material compatlble with the polymeric mater-:
ial of the tube, and tlle hose construction further includes means bonding :: ~ :: :
the insulating sleeve to t~ ~ ~ 7e.
By other variations, the bonding means may be in the form of adhesive means, or may be in the form of a heat-fused area.
By a further variant, the central cond-lctor 19 a single compara-tively rigid wire of circ~Ilar cross-section.
By another variant, the convoluted tube is a seamless tube.
By a further variant, the central conductor is a rigid metal wire of circular cross-section, and the convoluted tube is a seamless tube made of thermoplastic material.
By a further variant, the alternating inwardly facing troughs and crests comprise a plurality of sets of troughs and crests and the hose `
construction further includes at least one other electrical conductor-reinforcing member, the other electrical conductor-reinforcing member com-prlslng a central conductor and a braided metal, sleeve-like outer conduc- ~
tor disposed concentrically around the central conductor with electrical ~ ;
insulation therebetween, the outer conductor having an electrical insulating ~`
sleeve disposed ~therearound, the one electrical conductor-reinforcing ~
.
member being disposed in helically coiled relation within associated troughs ~ ~
....
of one of the sets, and the other electrical conductor-reinforcing member being disposed In helically coiled relation within associated troughs of ~; ~ another of the;sets.
By a variation thereof, the tube is of substantially uniform ~-wall thickness throughout and is made of~a polymeric material.
By another variation, the tube is made of a thermoplastic material. -~`~ By yet another variation, the insulating sleeve of the outer con-ductor of the~other electrical conductor-reinforcing member is made of a polymeric~material compatible with the polymeric material of the tube, and the~hose construction further comprises menns bonding the Insulating sleeve to the tube.
By other~varIants, the bondina means comprIses adhesIve means~ or ~ 4 ~
~37~;i3i~
comprises a heat-fused area.
By yet n furtl~er vnrlrltlpn thereo~, thebondlrlg means ls deflned by softenlng of adJoin:Lrlg poLymer:Lc port.Lons by solvent ~ct:Lon ~md rehardell:ing thereof.
By anotller varlallt, the central conductor comprises a single comparatively rigid wire of circular cross~se!ct:lon.
By a Eurther variation, the tube is a seamless blow-molded tube, In the accompanying drawing, I Figure 1 is a perspective view with parts in elevation, parts in j, ~
' ~"
:
' ` ~ :
.~. 30 - 4 ~ .
- a - ~
.. . . :
~ ~753~L
cross-section, parts broken away, ~md E~rts shown schema-ti.call,y, illustrat-ing an ~xen~lary vacu~n cle~ling appara-tus wl'lich ~n~loys the hose construc~
tion of an aspect oE ~his invffntion;
FIG. 2 is an e~Larged :Eragnen-tary view with parts in elevation cmd parts in cross-sec-tion particularly illustrating the dfftails of the hose construction o~ c~n aspect o~ this inv~ltian which has an electrical conductor-reinforcing m~mber disposed in helical:Ly coiled r~Lation there-within;
FIG. 3 is an enLarged Eragn~n-tary view with parts in elevation and parts in cross-section particuLarly illustrating details of the elec- ~ -trical conductor-reinforcing member of the hose oonstruction of FIG. 2; and FIG. 4 is a view similar to FIG. 2 illustrating another exen~lclry embodiment of the hose construction of anothffr aspect of this invention.
-4b-. . i . . ' ~ . . . .. . .. ~
7S3~
Reference i8 now ma~e to FIG. 1 of the drawlng which illustrates an exemplary vacuum cleaning apparatus which is designated generally by the reference numera~ 20 and such apparatus has a tank or canlster 21 which has a vacuum tube 22 extending therefrom and the tllbe 22 is particularly adapted to have a hose assembly 23 and in particular a hose connector 24 of such assembly 23 connected thereto. The hose assembly 23 has an integral hose connector 25 provided at ~ts opposite end and assembly 23 utillzes one ex~
emplary embodimenr of a hose construction 26 of an aspect of ~his invention as its vacuum hose with tha hose connectors 24 and 25 suitably fixed at the ~-opposite ends thereof using any guitable technique known in the art.
Th~ apparatus 20 is provided with electrical power from a suita-ble power source (not shown) and has a female electrical connector or re- ;:
ceptacle 27 mounted on its tank 21, The receptacle 27 supplies power through an electrical cord assembly 30 to the hose assembly 23 and the cord assembly 30 has a male connector 31 at one end and a female connector 32 at its opposite end with the male connector 31 being received within the re-; ceptacle 27 and the f~male connector 32 being adapted to be operatively con-nected to an associated male connector 33 provided ln the hose connector 24 of the hose assembly 23.
The hose connector 25 of assembly 23 has a female connector 34 ~:~
provided at its outer end and connector 34 is adapted to be opera~i~ely connected with a male connector plug 35 of an electrical cord assembly:36 to supply power to an electric motor 37 of a cleaning instrument 38 (only a , ~ ~ t :
' ;.``' , :
~'7~3~
portiol1 of whlch is sho~n) which comprises the apparatus 20. '1~ lnstru-ment 38 has an lnnar end portlon 39 ac1apted to be operatlv~ly connected with the hose connector 25 and a cleaning instrume.rlt or brush at thct outer end of instrument 38 dr1ven by moto~ 37 is not shown.
The hose construction 26 is of optimum fl~xibility and i8 rein-forced again~t collapse whlle belng aasily constructed using simple tech-niques which are w~ll known in the art and employcd :Ln making a hose con-s~ruction which m~rely has a helical reinforcil1g wire disposed therewithin;
yet, the hose construction 26 is reinforced in the required manner and still provides a plurality of electrical conductors in a dual-purposc member hav-ing a concentric electrical conduc~or-reinforcing wir~ using the above-mentioned simple techniques.
Reference is now made to FIG. 2 of the drawing which is a detailed illustration of the hose construction 26 of an aspect of this invention and such hose construction 26 comprlses an elongated or elongate polymeric tube 41 having alternating inwardly facing troughs 42 and crests 43 along its length; and, the troughs 42 are disposed in a 'nelical pattern along the length of the hose constructlon 26. The hose construction 26 has the above-mentioned dual-purpose member which is designated by the reference numeral 45 and such membe~ is in the form of an electrical conductor~reinforcing member disposed in helically coiled relation within the inwardly facing troughs 42 and it will be appreciated that this reference to inwardly facing troughs 42 is to the fact that such troughs open inwardly toward a central longitudinal axis 46 of the hose construction 26. The dual-purpose electri~
cal conductor- ~
': " -,, ", ':
- 6 - ~
7~
reinforcing member 45 is h~lically coiled utllizing nny sultable apparatus or technique known in the art and preerably the tube 41 .L~s formed as a seam-less oxtruded tube which :Ls extruded around thc pre.formed hc.lically colled member 45 and allowed to cool therearound theroby defining the troughs 42 and crests 43.
The member 45 i9 of such simple const:r-lct:Lon that lt easily pro-cessed in a similar manner as a simple plastic sleeve covered reinforcing wire commonly used in similar vacuum cleaner hose constructions proposed heretofore. The member 45 comprises a ce~tral conductor 47 and an outer sleeve-like or tube-like cond-lctor 50 disposed concentrically around the central conductor 47 with electrical insulation in the form of a compara-tively thick sleeve insulator 51 therebetween; and, it will be seen that the outer sleeve-like conductor 50 has an electrical insulating sleeve 52 dis-posed concentrically therearound. Each of the sleeve members 51 and 52 is made of any suitable polymeric electrical insulating material, e.g. any suitable synthetic thermoplastic material, or the likc.
The central conductor 47 may be made of any suitable me~allic~
material and is preferably in th~ form of a comparatively rigid electrically conducting metal wire of circular cross-section, although the cross-section
2~ of such wire may be of any ~uitable shape employad in the artO Further, the outer sleeve-like conductor 50 is preferably in the form of a braided metal sleeve with the braiding boing indicated at 53 whereby wi~h the cëntral conductor 47 and the concentric conductor 50 the me~ber 45 may be processed and ha=dled witb optim~m si~pllcity yet the member 45 has a , _ 7 _ :, ~ .::, , : . ~
17~;3~
plurality of two electrlcal conductors extentlLn~ along lts length.
The tube 41 is A s~amlcss extr~.lded t~be as lnd:lcat~d prevlously and such tube may be ~de using blow mo1.ding apparatus and technlques to assure that 9uch tube iS provided with a substaTItially uniorm comparative.ly small thickness along its entire length and such thickncss is indicated by the reference numeral 54. It will also be appreciated that by making the tub~ 41 of minimum thickness the amount of tube material is kept at a mdni-mum and the cost of the overall hose construction 26 is kept competitive in a highly competitive market.
The hose construction 26 preferably has means bonding the insulat- :
ing sleeve 52 to the tube 41 and such bonding means is indicated at a few typical locations by the reference numeral 55. It will be appreciated that the bondin~ means 55 may be in the form of a heat-fused area provided be-tween the tube 41 after it leaves its extruder and comes into contact with - the outside surface of the thermoplastic sleeve 52. It will also be appreci-ated that the bonding means 55 may also be in the form of a suitable ad- ~ -hesive means, solvent, or the like. ;~ :~
The tube 41 may be made of any suitable polymeric material as ; .:
previously mentioned and is praferably made of a synthetic plastic material in the form of a thermoplastic material. Similarly, it will be appreciated that the outer slee~e 52 of the member 45 is also made of a suitable poly-meric material preferably in the form of a thermoplastic material and the materials employed to make the tube 41 and sleeve 52 are such that they are co=patible wlth ~ch t :: ~
- ~ , .. . . .
~0~37'33~L
other and capable of being bon~d by heat fuslon, adheslve means, solvent action, or the like, ther~between.
Another exe~plary elllbodlment of the hose construction o nnother aspect of this invention i9 illustrated in Fig" 4 of the drawing. '~he hose construction illustrated in Fig. 4 is very si~ilar to ~hc hose construction 26 therefore, such hose construction will be clesignated by the reference numeral 26A and component portlons of the hose constructlon 26A which are similar to component portlons of the hose construction 26 will be designated in the drawing by the same referenco numeral as in the hose construction 26 (whether or not such component portions are mentioned in the specification) followed by the letter designation A and not described again in detail.
The hose construction 26A also has a comparatively thin wall con-voluted polymeric tube 41A; however, instead of having a ~inglo dual-purpose electrical conductor-reinforcing member 45 as in hose construction 26, the hose construction 26A has a plurality of two of such members each designated by the same reference numeral 45A. In addition, it will be seen that the alternating inwardly facing troughs 42A and crests 43A of the hose con-struction 26A compriaes a plurality of sets of troughs and crests and in this example of plurality of two scts of troughs and crests wherein one of the members 45A is di.sposed in helically coiled relation ~ithin associated troughs of one of the sets and such one member is designated by the refer-ence numeral 57A and the other member 45A is disposed in helicaIly coiled relation within lts associated troughs of another of the sets and is indi-cated by refer~nce numeral 60A. Thus, it will be seen that the hose , .
.~
53~
construction ~6A in essence has two dual-purpose members 45A and the dual-purpose members 45A provlde a plurallty of four ele.ctrlcal conductors which extend along the en~ire length of the hose conc:truction 26A.
Each of th~ members 45A of hose const:ruct:Lo~ 26A is substantially identical to the mcmbcr 45 illustrated in FIG. 3 and hence will not be described iD detail. Fur~her, it w~ll be appreciated that the two helically coiled members 45A are suitably coilcd utillzing methods known in the art;
and, the tube 41A may be formed around the two coils 45A using extrusion and blow molding apparatus in a simllar manner as previously described, It will also be appreciated that the inside surface of the tube 4]A is bonded to each of the members 45A as shown at a typical location 55A and, as before, the bonding may be by heat fusion, adhesive means, solvent, or the like. .
Referenc~ has been made in the above description to the utilization of bonding means 55 or 55A with such bonding means being heat fusion, suita-ble adhesive means, solvent, or the like. When employing bonding means 55 or 55A in the form of adhesive means or solvent, it will be appreciated that the outside surface of the associated member either 45 or 45A ls coated with ~:
the required adhesive means or solvent utili~ing techniques which are known in the art. .
The convoluted tube of the hose construction of this invention and ;~
the sleeve provided on the dual-purpose electrical conductor-reinforcing member may be made of suitable polymeric materials, preferably the materials employed are compatible thermoplastic materials.
While prescDt exempl~ry embodimcnts ot thisinvention, -: . . . - , . ,~ :
: .: .: : . ... : , : : :: . , . . ,. ,, ,., : : :
.: ~ .: : .: , .. . .
. : . . . : ~,-- :. .- . ,,,, , ,:, , , ., , : .
: , , . : : : . .:: . .- , . : -.. : . : . - : :
:, ~ : : ~ ,,, ; , , 75"3~ ~
. .
,...~ ~
,, ~, ~nd mt3thods of prac-icirl~ thc same, have bQcn illustratcd and dt~st,~ribed, it wll~ be recogllizod that ~his invQnt.iOn may ¦ be othcr~ise various~y ombodied . For examplc, it is s~ecif~
ically contemplated tllat the outer sleeve-like conductor 50, which has bt,~en shown to be a braided metal sleeve, may also bc a wxappcd metal tape, or a tape formed oE an electrically con~
ductive xub~er or thermoplastic material. ~ ~ ;
i r .
:
, ~
, , : : : ~
, , :: :
; I !_ \ i, . . 1, . i . . .. .. . . . . . . . .. .... .. .. . . i
17~;3~
plurality of two electrlcal conductors extentlLn~ along lts length.
The tube 41 is A s~amlcss extr~.lded t~be as lnd:lcat~d prevlously and such tube may be ~de using blow mo1.ding apparatus and technlques to assure that 9uch tube iS provided with a substaTItially uniorm comparative.ly small thickness along its entire length and such thickncss is indicated by the reference numeral 54. It will also be appreciated that by making the tub~ 41 of minimum thickness the amount of tube material is kept at a mdni-mum and the cost of the overall hose construction 26 is kept competitive in a highly competitive market.
The hose construction 26 preferably has means bonding the insulat- :
ing sleeve 52 to the tube 41 and such bonding means is indicated at a few typical locations by the reference numeral 55. It will be appreciated that the bondin~ means 55 may be in the form of a heat-fused area provided be-tween the tube 41 after it leaves its extruder and comes into contact with - the outside surface of the thermoplastic sleeve 52. It will also be appreci-ated that the bonding means 55 may also be in the form of a suitable ad- ~ -hesive means, solvent, or the like. ;~ :~
The tube 41 may be made of any suitable polymeric material as ; .:
previously mentioned and is praferably made of a synthetic plastic material in the form of a thermoplastic material. Similarly, it will be appreciated that the outer slee~e 52 of the member 45 is also made of a suitable poly-meric material preferably in the form of a thermoplastic material and the materials employed to make the tube 41 and sleeve 52 are such that they are co=patible wlth ~ch t :: ~
- ~ , .. . . .
~0~37'33~L
other and capable of being bon~d by heat fuslon, adheslve means, solvent action, or the like, ther~between.
Another exe~plary elllbodlment of the hose construction o nnother aspect of this invention i9 illustrated in Fig" 4 of the drawing. '~he hose construction illustrated in Fig. 4 is very si~ilar to ~hc hose construction 26 therefore, such hose construction will be clesignated by the reference numeral 26A and component portlons of the hose constructlon 26A which are similar to component portlons of the hose construction 26 will be designated in the drawing by the same referenco numeral as in the hose construction 26 (whether or not such component portions are mentioned in the specification) followed by the letter designation A and not described again in detail.
The hose construction 26A also has a comparatively thin wall con-voluted polymeric tube 41A; however, instead of having a ~inglo dual-purpose electrical conductor-reinforcing member 45 as in hose construction 26, the hose construction 26A has a plurality of two of such members each designated by the same reference numeral 45A. In addition, it will be seen that the alternating inwardly facing troughs 42A and crests 43A of the hose con-struction 26A compriaes a plurality of sets of troughs and crests and in this example of plurality of two scts of troughs and crests wherein one of the members 45A is di.sposed in helically coiled relation ~ithin associated troughs of one of the sets and such one member is designated by the refer-ence numeral 57A and the other member 45A is disposed in helicaIly coiled relation within lts associated troughs of another of the sets and is indi-cated by refer~nce numeral 60A. Thus, it will be seen that the hose , .
.~
53~
construction ~6A in essence has two dual-purpose members 45A and the dual-purpose members 45A provlde a plurallty of four ele.ctrlcal conductors which extend along the en~ire length of the hose conc:truction 26A.
Each of th~ members 45A of hose const:ruct:Lo~ 26A is substantially identical to the mcmbcr 45 illustrated in FIG. 3 and hence will not be described iD detail. Fur~her, it w~ll be appreciated that the two helically coiled members 45A are suitably coilcd utillzing methods known in the art;
and, the tube 41A may be formed around the two coils 45A using extrusion and blow molding apparatus in a simllar manner as previously described, It will also be appreciated that the inside surface of the tube 4]A is bonded to each of the members 45A as shown at a typical location 55A and, as before, the bonding may be by heat fusion, adhesive means, solvent, or the like. .
Referenc~ has been made in the above description to the utilization of bonding means 55 or 55A with such bonding means being heat fusion, suita-ble adhesive means, solvent, or the like. When employing bonding means 55 or 55A in the form of adhesive means or solvent, it will be appreciated that the outside surface of the associated member either 45 or 45A ls coated with ~:
the required adhesive means or solvent utili~ing techniques which are known in the art. .
The convoluted tube of the hose construction of this invention and ;~
the sleeve provided on the dual-purpose electrical conductor-reinforcing member may be made of suitable polymeric materials, preferably the materials employed are compatible thermoplastic materials.
While prescDt exempl~ry embodimcnts ot thisinvention, -: . . . - , . ,~ :
: .: .: : . ... : , : : :: . , . . ,. ,, ,., : : :
.: ~ .: : .: , .. . .
. : . . . : ~,-- :. .- . ,,,, , ,:, , , ., , : .
: , , . : : : . .:: . .- , . : -.. : . : . - : :
:, ~ : : ~ ,,, ; , , 75"3~ ~
. .
,...~ ~
,, ~, ~nd mt3thods of prac-icirl~ thc same, have bQcn illustratcd and dt~st,~ribed, it wll~ be recogllizod that ~his invQnt.iOn may ¦ be othcr~ise various~y ombodied . For examplc, it is s~ecif~
ically contemplated tllat the outer sleeve-like conductor 50, which has bt,~en shown to be a braided metal sleeve, may also bc a wxappcd metal tape, or a tape formed oE an electrically con~
ductive xub~er or thermoplastic material. ~ ~ ;
i r .
:
, ~
, , : : : ~
, , :: :
; I !_ \ i, . . 1, . i . . .. .. . . . . . . . .. .... .. .. . . i
Claims (18)
1. A reinforced convoluted hose construction comprising: an elongate convoluted tube having alternating inwardly facing troughs and crests along the length thereof, said troughs being disposed in a helical pattern along said length; and at least one electrical conductor-reinforcing member disposed in a helically coiled relation within said inwardly facing troughs, said electrical conductor-reinforcing member com-prising a central conductor and a braided metal, leeve-like outer conduc-tor disposed concentrically around said central conductor with electrical insulation therebetween; said outer conductor having an electrical insu-lating sleeve disposed therearound.
2. A hose construction as set forth in claim 1, wherein said tube is of substantially uniform wall thickness throughout, and is made of a polymeric material.
3. A hose construction as set forth in claim 2, wherein said polymeric material is a thermoplastic material.
4. A hose construction as set forth in claim 2, wherein said insulating sleeve of said outer conductor is made of a polymeric material compatible with the polymeric material of said tube, and wherein said hose construction further comprises means bonding said insulating sleeve to said tube.
5. A hose construction as set forth in claim 4, wherein said bonding means comprises adhesive means.
6. A hose construction as set forth in claim 4, wherein said bonding means comprises a heat-fused area.
7. A hose construction as set forth in claim 1, wherein said cen-tral conductor is a single comparatively rigid wire of circular cross-section.
8. A hose construction as set forth in claim 1, wherein said convoluted tube is a seamless tube.
9. A hose construction as set forth in claim 1, wherein said central conductor is a rigid metal wire of circular cross-section; and wherein said convoluted tube is a seamless tube made of thermoplastic material.
10. A hose construction as set forth in claim 1 wherein said alternating inwardly facing troughs and crests comprise a plurality of sets of troughs and crests, and wherein said hose construction further com-prises at least one other electrical conductor-reinforcing member, said other electrical conductor-reinforcing member comprising a central conductor and a braided metal, sleeve-like outer conductor disposed concentrically around said central conductor with electrical insulation therebetween, said outer conductor having an electrical insulating sleeve disposed therearound, said one electrical conductor-reinforcing member being disposed in helically coiled relation within associated troughs of one of said sets, and said other electrical conductor-reinforcing member being disposed in helically coiled relation within associated troughs of another of said sets.
11. A hose construction as set forth in claim 10, wherein said tube is of substantially uniform wall thickness throughout and is made of a polymeric material.
12. A hose construction as set forth in claim 11, wherein said tube is made of a thermoplastic material.
13. A hose construction as set forth in claim 13, wherein said insulating sleeve of said outer conductor of said other electrical conductor-reinforcing member is made of a polymeric material compatible with the poly-meric material of said tube, and wherein said hose construction further comprises means bonding said insulating sleeve to said tube.
14. A hose construction as set forth in claim 13, wherein said bonding means comprises adhesive means.
15. A hose construction as set forth in claim 13, wherein said bonding means comprises a heat-fused area.
16. A hose construction as set forth in claim 13, wherein said bonding means is defined by softening of adjoining polymeric portions by solvent action end rehardening thereof.
17. A hose construction as set forth in claim 13, wherein said central conductor comprises a single comparatively rigid wire of circular cross-section.
18. A hose construction as set forth in claim 13, wherein said tube comprises a seamless blow-molded tube.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US76640077A | 1977-02-07 | 1977-02-07 | |
| US766,400 | 1977-02-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1087531A true CA1087531A (en) | 1980-10-14 |
Family
ID=25076330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA296,432A Expired CA1087531A (en) | 1977-02-07 | 1978-02-06 | Hose construction |
Country Status (8)
| Country | Link |
|---|---|
| JP (2) | JPS5397622A (en) |
| BE (1) | BE863678A (en) |
| CA (1) | CA1087531A (en) |
| DE (1) | DE2804652A1 (en) |
| FR (1) | FR2379745A1 (en) |
| GB (1) | GB1551605A (en) |
| IT (1) | IT1092384B (en) |
| NL (1) | NL7801354A (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0005278B1 (en) * | 1978-05-10 | 1984-12-19 | Automation Industries, Inc. | Helically fabricated flexible hose and mandrel device for producing the same |
| DE2940107A1 (en) * | 1978-06-05 | 1981-04-09 | Dayco Corp., Dayton, Ohio | HOSE DEVICE |
| DE3224273A1 (en) * | 1982-06-28 | 1983-12-29 | Siemens AG, 1000 Berlin und 8000 München | HOSE PIPE WITH A MECHANICAL SUPPORT ELEMENT (ARMORING) IN OR IN THE INNER WALL IN THE FORM OF A WIRE REEL |
| DE3700058A1 (en) * | 1987-01-02 | 1988-07-14 | Semperit Ag | Hose-coupling system |
| GB8730349D0 (en) * | 1987-12-31 | 1988-02-03 | Standard Hose Ltd | Hosepipe |
| JPH0648227Y2 (en) * | 1989-02-20 | 1994-12-12 | 矢崎総業株式会社 | Synthetic resin corrugated pipe |
| BE1005892A5 (en) * | 1992-06-04 | 1994-03-01 | Plastiflex Europ N V | Flexible hose. |
| DE4402835C2 (en) * | 1994-01-31 | 1997-09-18 | Aeg Hausgeraete Gmbh | Telescopic suction pipe with electrical cable |
| DE102011017811A1 (en) * | 2011-04-29 | 2012-10-31 | Evonik Degussa Gmbh | Temperable pipeline for offshore applications |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE563400A (en) * | 1956-12-21 | |||
| US3107697A (en) * | 1959-02-02 | 1963-10-22 | Flexible Tubing Corp | Flexible conduit |
| DE1765573A1 (en) * | 1968-06-12 | 1971-07-29 | Felten & Guilleaume Carlswerk | Coaxial high-frequency cable with a braided outer conductor |
-
1978
- 1978-01-27 GB GB3457/78A patent/GB1551605A/en not_active Expired
- 1978-02-02 FR FR7802898A patent/FR2379745A1/en not_active Withdrawn
- 1978-02-03 IT IT19952/78A patent/IT1092384B/en active
- 1978-02-03 DE DE19782804652 patent/DE2804652A1/en active Pending
- 1978-02-06 JP JP1225178A patent/JPS5397622A/en active Pending
- 1978-02-06 CA CA296,432A patent/CA1087531A/en not_active Expired
- 1978-02-06 BE BE184925A patent/BE863678A/en unknown
- 1978-02-06 NL NL7801354A patent/NL7801354A/en not_active Application Discontinuation
-
1981
- 1981-08-10 JP JP1981118678U patent/JPS5754781U/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE2804652A1 (en) | 1978-08-10 |
| IT7819952A0 (en) | 1978-02-03 |
| IT1092384B (en) | 1985-07-12 |
| JPS5754781U (en) | 1982-03-30 |
| GB1551605A (en) | 1979-08-30 |
| FR2379745A1 (en) | 1978-09-01 |
| BE863678A (en) | 1978-05-29 |
| JPS5397622A (en) | 1978-08-26 |
| NL7801354A (en) | 1978-08-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |