Patent US4154335A successfully refreshed from Google Patents.
US4154335A
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Conveyor belting and method of manufacture
Assignee: Globe International Inc
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Filing: 1977-11-04
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Granted: 1979-05-15
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Expires: 1997-11-04
Abstract
Abstract The disclosure is of conveyor belting and a method for its manufacture. The belting comprises a plurality of substantially parallel textile yarns of a specific character, integrated with a layer of consolidated staple fibers and encapsulated in a matrix of a specific class of elastomeric resin. The belting of the invention is useful to manufacture conveyor belts which exhibit advantageous properties of wear resistance, stability in running and structural integrity.
Inventors
- 👤 Edward J. Burnett
- 👤 Richard A. Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:58
CPC Classifications
B; B29; B29D; B29D29/00; B32; B32B; B32B5/00; B32B5/22; B32B5/24; B32B5/26; B29D29/06; B32B5/02; B32B5/024; B32B5/026; B32B5/06; B65; B65G; B65G15/00; B65G15/30; B65G15/32; B65G15/34; B65G15/36; B32B2262/00; B32B2262/02; B32B2262/0276; B32B2307/00; B32B2307/50; B32B2307/54; B32B2433/00; B32B2433/02; B65G2201/00; B65G2201/06
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
108 words
A conveyor belting, which comprises; a plurality of substantially parallel, uncrimped textile yarns characterized by their high tensile strength, low stretch of at least about 4 to 5 percent (178 nominal breaking load) to about 15 to 20 percent and uniformity of shrink; a layer of fibrous material in the form of discrete staple fibers, said layer being consoldiated through entanglement of the individual fibers and integrated with said yarns by entanglement of the fibers therewith, said entanglements being of the character produced by a needling operation; and a matrix of a synethetic, polymeric, non-cellular, elastomeric resin substantially encapsulating the layer, individual fibers thereof and the intergrated yarns.
Claim 2
Dependent Claim
108 words
A conveyor belting, which comprises; a plurality of substantially parallel, uncrimped textile yarns characterized by their high tensile strength, low stretch of at least about 4 to 5 percent (178 nominal breaking load) to about 15 to 20 percent and uniformity of shrink; a layer of fibrous material in the form of discrete staple fibers, said layer being consoldiated through entanglement of the individual fibers and integrated with said yarns by entanglement of the fibers therewith, said entanglements being of the character produced by a needling operation; and a matrix of a synethetic, polymeric, non-cellular, elastomeric resin substantially encapsulating the layer, individual fibers thereof and the intergrated yarns.
Claim 3
Dependent Claim
16 words
The belting of claim 1 where in said yarns are incorporated as yarns in a cloth.
Claim 4
Dependent Claim
16 words
The belting of clam 2 wherein said yarns are the lengthwise yarns of a knitted cloth.
Claim 5
Dependent Claim
16 words
The belting of clam 2 wherein said yarns are the lengthwise yarns of a knitted cloth.
Claim 6
Dependent Claim
15 words
The belting of claim 2 wherein said yarns are lengthwise yarns in a woven cloth.
Claim 7
Dependent Claim
23 words
The belting of claim 4 wherein said layer is produced by needling a bat of staple fibers to one side of said cloth.
Claim 8
Dependent Claim
23 words
The belting of claim 4 wherein said layer is produced by needling a bat of staple fibers to each side of said cloth.
Claim 9
Dependent Claim
10 words
The belting of claim 1 wherein said yarns are polyester.
Claim 10
Dependent Claim
10 words
The belting of claim 7 wherein said fibers are polyester.
Claim 11
Dependent Claim
12 words
The belting of claim 1 wherein said resin is an acrylonitrile-butadiene copolymer.
Claim 12
Dependent Claim
21 words
The belting of claim 1 wherein the matrix comprises from 50 to 500 percent by weight of the yarns and fibers.
Claim 13
Independent Claim
99 words
A method of manufacturing a conveyor belting, which comprises; providing a plurality of substantially parallel textile yarns characterized by their high tensile strength, low stretch and uniformity of shrink; needling to said yarns a bat of discrete staple fibers; tensioning the needled fabric in the lengthwise direction (along the axis of the textile yarns) under a force of from 0.5 to 20 lbs. per inch or more of fabric width; heat setting needled material while it is under the tensioning; saturating the heat set material with a liquid, non-cellular elastomer forming, synthetic, polymeric resin; and curing the resin saturant.
Claim 14
Independent Claim
99 words
A method of manufacturing a conveyor belting, which comprises; providing a plurality of substantially parallel textile yarns characterized by their high tensile strength, low stretch and uniformity of shrink; needling to said yarns a bat of discrete staple fibers; tensioning the needled fabric in the lengthwise direction (along the axis of the textile yarns) under a force of from 0.5 to 20 lbs. per inch or more of fabric width; heat setting needled material while it is under the tensioning; saturating the heat set material with a liquid, non-cellular elastomer forming, synthetic, polymeric resin; and curing the resin saturant.
Claim 15
Dependent Claim
18 words
The method of claim 11 wherein a bat of fibers is needled to each side of the yarns.
Claim 16
Dependent Claim
13 words
The method of claim 12 wherein the yarns are in a woven cloth.
Claim 17
Dependent Claim
27 words
The method of claim 11 wherein needling is on one side of the yarns and the needled fabric is then calendered to further consolidate the needled fabric.
Claim 18
Dependent Claim
19 words
The method of claim 11 wherein the yarns are held under tension while the needled material is heat set.
Claim 19
Dependent Claim
19 words
The method of claim 11 wherein saturating is carried out by dipping the heat set material in said liquid.
Claim 20
Dependent Claim
27 words
The method of claim 11 wherein said liquid is an aqueous latex and after saturation, the saturated material is dried to remove a portion of the water.
Claim 21
Dependent Claim
28 words
The method of claim 11 wherein said liquid is a mixture of said resin and a liquid carrier and the liquid is evaporated from the material before curing.
Claim 22
Dependent Claim
14 words
The method of claim 11 wherein the saturated material is dried and then cured.
Claim 23
Dependent Claim
19 words
The method of claim 11 wherein curing is effected by passing the saturated material through a heated platen press.
Claim 24
Dependent Claim
10 words
A conveyor belt manufactured from the belting of claim 1.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-05-14 | 1982-11-13 | 1983-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-05-14 | 1986-11-13 | 1987-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-05-14 | 1990-11-13 | 1991-05-15 | $7700.00 | Window Closed / Lapsed |