GB1600023A - Manufacture of reinforced fabrics - Google Patents

Manufacture of reinforced fabrics Download PDF

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Publication number
GB1600023A
GB1600023A GB31692/77A GB3169277A GB1600023A GB 1600023 A GB1600023 A GB 1600023A GB 31692/77 A GB31692/77 A GB 31692/77A GB 3169277 A GB3169277 A GB 3169277A GB 1600023 A GB1600023 A GB 1600023A
Authority
GB
United Kingdom
Prior art keywords
fabric
coated
cable
sheet
loop
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
Application number
GB31692/77A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HARVEY Ltd
Original Assignee
HARVEY Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by HARVEY Ltd filed Critical HARVEY Ltd
Priority to GB31692/77A priority Critical patent/GB1600023A/en
Priority to DE7818766U priority patent/DE7818766U1/en
Priority to DE19782827432 priority patent/DE2827432A1/en
Priority to IT49980/78A priority patent/IT1105453B/en
Priority to FR7819415A priority patent/FR2398522A1/en
Publication of GB1600023A publication Critical patent/GB1600023A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C19/00—Design or layout of playing courts, rinks, bowling greens or areas for water-skiing; Covers therefor
    • A63C19/12—Removable protective covers for courts, rinks, or game pitches or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/433—Casing-in, i.e. enclosing an element between two sheets by an outlined seam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/433—Casing-in, i.e. enclosing an element between two sheets by an outlined seam
    • B29C66/4332—Casing-in, i.e. enclosing an element between two sheets by an outlined seam by folding a sheet over
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/721—Fibre-reinforced materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/10—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using hot gases (e.g. combustion gases) or flames coming in contact with at least one of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/69—General aspects of joining filaments 
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/721—Fibre-reinforced materials
    • B29C66/7212—Fibre-reinforced materials characterised by the composition of the fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
    • B29K2027/12—Use of polyvinylhalogenides or derivatives thereof as moulding material containing fluorine
    • B29K2027/18—PTFE, i.e. polytetrafluorethene, e.g. ePTFE, i.e. expanded polytetrafluorethene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/02—Coating on the layer surface on fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/26—Polymeric coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2305/00—Condition, form or state of the layers or laminate
    • B32B2305/08—Reinforcements

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Laminated Bodies (AREA)
  • Ropes Or Cables (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Description

(54) IMPROVEMENTS IN THE MANUFACTURE OF REINFORCED FABRICS (71) We, FOTHERGILL AND HARVEY LIMPED, Summit, Littleborough, County of Lancaster; do hereby declare the invention for which we pray that a patent may be granted to us, and the method by which it is to be performed, to be particularly described in and by the following statement: This invention relates to improvements in fabrics for use as a waterproof membrane or cover for buildings such as sports stadia, gymnasiums, swimming pools and warehouses.
One of the problems in designing this type of structure is the attachment of support cables to the fabric.
It has been proposed to thread a support cable through a loop at the edge of the fabric.
However continuous abrasion of the cable retaining loop by the cable may lead to eventual fabric failure. Therefore, some means of making the cable an integral part of the structure is necessary and an additional advantage of so doing is that it makes it possible to tension the structure by pulling only on the cables instead of the cable and fabric separately.
The fabric may be of woven glass-fibre and it may be precoated with silicone or precoated with silicone in combination with fluoro ethylene propylene (F.E.P.) or poly tetrafluorowethylene (p.t.f.e) fillers such as silica may also be added to-the coatings before being subjected to the method of the invention.
According to the invention a method of reinforcing fabrics in sheet form comprises coating the fabric sheet with a fluoro polymer, forming a loop in the sheet or in a fluoro polymer coated strip bonded thereto and inserting a single or multi standed polytetrafluoroethylene or fluoroethylene propylene coated cable into the loop and bonding the cable to the fabric sheet.
The invention will be described with reference to the accompanying drawings:- Figure 1 is-a perspective view of a coated fabric with a cable loop bonded thereto; Figure 2 is a section on line 2-2 Figure 1; Figure 3 is a perspective view of a further form of the invention.
Figure 4 is a section on line 44 Figure 3.
A cable A is coated with polytetrafluoroethylene (p.t.f.e) or fluoroethylene (F.E.P.) by extrusion or by winding a p.t.f.e. tape thereon and is threaded through a loop or hem formed along the edges of p.t.f.e. or f.e.p. coated glass or fibre glass fabric forming a stressed membrane for covering buildings or other structures.
The cable may be enclosed as shown in Figures 1 and 2 in a strip in the form of fluoropolymer coated fabric such as f.e.p. or p.t.f.e. the edges of which are bonded one on each side of the edge of the fabric strip 1. Alternatively the loop 2 along the edges of the coated fabric may be formed from the fabric folded over on itself and bonded.
Support of the covering may also be achieves at or away from the edges by the method showr on Figure 3 and 4. In this case, the cable may be enclosed in a strip in the form of a loop 2 of fluoropolymer or p.t.f.e. coated fabric bonded to the same side of the fabric.
Alternatively, if at the edge or edges of the fabric, the loop 2 may be formed from the coated sheet of fabric folded over on itself and bonded.
The cable A may be single or multi-stranded and in both cases, the strand or strands are enclosed in a coating of fluoropolymer. Figures 1-4 show multi-strand cables. However, the support is equally applicable to single strand cables. In Figures 1 and 2, the loop 2 encloses the coated cable A with the edges of the loop bonded on each side of the fabric 1 and also to the cable coating 3. In Figures 3 and 4 the coated cable A is enclosed by the loop 2 and the fabric 1 with the loop bonded to one side of the fabric 1.
The fabric sheet is always coated with a fluoropolymer irrespective of whether it alone or the strip attached thereto forms the loop.
The cable coating 3 is bonded to the loop 2 and the fabric 1.
The coated cable A is threaded through the cable retaining loop 2 of the fabric and by heating the polymer coating on the cable A and the fabric 1 simultaneously, the loop and the cable coating are bonded to the fabric.
A filler of silicone may be incorporated in the fluoropolymer coating applied to the fabric or the fabric may be pretreated with silicone.
Heat is applied to bond the loop 2 to the fabric 1 and the cable coating 3 by a hot air blower or by heated pliers shaped to the fabric/ cable diameter. By this means the cable is welded continuously or intermittently along its length making it an integral part of the fabric to prevent abrasion between the fabric and the cable. Tension may be applied to the cable, to anchor the reinforced sheet on a building.
WHAT WE CLAIM IS: 1. A method of reinforcing fabrics in sheet form comprising coating the fabric sheet with fluoropolymer, forming a loop in the sheet or in a fluoropolymer-coated strip bonded thereto and inserting a single or multi-stranded polytetrafluoroethylene or fluoroethylene propylene coated cable into the loop and bonding the cable to the fabric sheet.
2. A reinforced fabric comprising a fluoropolymer coated sheet bonded between the edges of a strip of fluoropolymer coated material forming a loop, or the fluoropolymer coated sheet may be bent on itself to form the loop with one end bonded to the sheet, or a separate fluoro-polymer coated strip forms a loop with the sides of strip bonded to the same side of the coated sheet, and a single or multistranded polytetrafluoroethylene or fluoroethylene propylene coated cable enclosed within the loop and bonded to the sheet.
3. A coated fabric as in claim 2 in which the cable is enclosed in a strip in the form of a loop of polytetrafluoroethylene or fluoroethylene propylene coated fabric, and precoat of silicone, the edges of which are bonded one on each side of the edge of coated fabric.
4. A method of reinforcing a polymeric fabric in the form of sheets substantially as hereinbefore described.
5. A reinforced polymeric fabric in the form of sheets substantially as described with reference to the accompanying drawings.
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (5)

**WARNING** start of CLMS field may overlap end of DESC **. blower or by heated pliers shaped to the fabric/ cable diameter. By this means the cable is welded continuously or intermittently along its length making it an integral part of the fabric to prevent abrasion between the fabric and the cable. Tension may be applied to the cable, to anchor the reinforced sheet on a building. WHAT WE CLAIM IS:
1. A method of reinforcing fabrics in sheet form comprising coating the fabric sheet with fluoropolymer, forming a loop in the sheet or in a fluoropolymer-coated strip bonded thereto and inserting a single or multi-stranded polytetrafluoroethylene or fluoroethylene propylene coated cable into the loop and bonding the cable to the fabric sheet.
2. A reinforced fabric comprising a fluoropolymer coated sheet bonded between the edges of a strip of fluoropolymer coated material forming a loop, or the fluoropolymer coated sheet may be bent on itself to form the loop with one end bonded to the sheet, or a separate fluoro-polymer coated strip forms a loop with the sides of strip bonded to the same side of the coated sheet, and a single or multistranded polytetrafluoroethylene or fluoroethylene propylene coated cable enclosed within the loop and bonded to the sheet.
3. A coated fabric as in claim 2 in which the cable is enclosed in a strip in the form of a loop of polytetrafluoroethylene or fluoroethylene propylene coated fabric, and precoat of silicone, the edges of which are bonded one on each side of the edge of coated fabric.
4. A method of reinforcing a polymeric fabric in the form of sheets substantially as hereinbefore described.
5. A reinforced polymeric fabric in the form of sheets substantially as described with reference to the accompanying drawings.
GB31692/77A 1977-07-28 1977-07-28 Manufacture of reinforced fabrics Expired GB1600023A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB31692/77A GB1600023A (en) 1977-07-28 1977-07-28 Manufacture of reinforced fabrics
DE7818766U DE7818766U1 (en) 1977-07-28 1978-06-22 REINFORCED PLAN
DE19782827432 DE2827432A1 (en) 1977-07-28 1978-06-22 COVERED REINFORCED FABRIC
IT49980/78A IT1105453B (en) 1977-07-28 1978-06-22 PROCESS FOR COATING FABRICS WITH FLUORINATED POLYMERS AND PRODUCT OBTAINED
FR7819415A FR2398522A1 (en) 1977-07-28 1978-06-22 IMPROVEMENTS IN THE MANUFACTURE OF ARMED CANVAS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB31692/77A GB1600023A (en) 1977-07-28 1977-07-28 Manufacture of reinforced fabrics

Publications (1)

Publication Number Publication Date
GB1600023A true GB1600023A (en) 1981-10-14

Family

ID=10326997

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31692/77A Expired GB1600023A (en) 1977-07-28 1977-07-28 Manufacture of reinforced fabrics

Country Status (4)

Country Link
DE (2) DE7818766U1 (en)
FR (1) FR2398522A1 (en)
GB (1) GB1600023A (en)
IT (1) IT1105453B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998021020A1 (en) * 1996-11-12 1998-05-22 Lila Margaret Marzec Bonding of open mesh sheet material

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT389592B (en) * 1980-04-23 1989-12-27 Obe Werk Kg EYEWEAR HINGE
DE3907472A1 (en) * 1988-10-20 1990-04-26 Walter Weissinger Sheet-like load-bearing diaphragm for the exterior
DE29519259U1 (en) * 1995-12-05 1996-01-25 Müller-Peddinghaus, Reiner, Prof. Dr., 51467 Bergisch Gladbach Weather protection device
DE19735190B4 (en) 1997-08-14 2006-09-21 Müller-Peddinghaus, Reiner, Prof. Dr. Mounting system for awnings
DE102013014285A1 (en) * 2013-08-24 2015-02-26 Mr. Snow Gmbh Layer composite with a textile sliding surface

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998021020A1 (en) * 1996-11-12 1998-05-22 Lila Margaret Marzec Bonding of open mesh sheet material

Also Published As

Publication number Publication date
DE2827432A1 (en) 1979-02-15
DE7818766U1 (en) 1980-11-20
FR2398522A1 (en) 1979-02-23
IT7849980A0 (en) 1978-06-22
IT1105453B (en) 1985-11-04

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee