Patent US3784427A successfully refreshed from Google Patents.
US3784427A
Expired / Lapsed
US
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Method of making and treating bias cut fabric
Assignee: BI/MS HOLDINGS I Inc A DE CORP
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Filing: 1970-06-03
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Granted: 1974-01-08
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Expires: 1990-06-03
Abstract
Abstract A fabric suitable for V-belt covers and hose reinforcing is made by bias-cutting a tubular woven fabric into a continuous strip, stretching the continuous strip in the width direction as with a pin tenter frame to increase the angle between warp and filling to greater than 90*, applying an elastomeric coating, and longitudinally slitting the strip into a plurality of narrower tapes which are then wrapped around a V-belt core in a conventional manner or used as hose reinforcing.
Inventors
- 👤 T Griffin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:30
CPC Classifications
F; F16; F16G; F16G5/00; F16G5/04; F16G5/06; B; B29; B29D; B29D29/00; B29D29/10; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1084; Y10T156/1087
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
22 words
A process as in claim 1 wherein the stretching step increases the angle of the complementary threads to between 110* and 135*.
Claim 2
Dependent Claim
13 words
A process as in claim 1 wherein said binder composition contains resorcinol formaldehyde.
Claim 3
Dependent Claim
34 words
A process as in claim 1 wherein said binder composition is selected from the group consisting of dispersions of an elastomer in a carrier liquid and solutions of an elastomer in a solvent liquid.
Claim 4
Dependent Claim
22 words
A process as in claim 1 wherein the stretching step increases the angle of the complementary threads to between 110* and 160*.
Claim 5
Dependent Claim
156 words
In the process of making an elastomeric power transmission belt by wrapping a woven fabric cover about an elastomeric core the improvement which comprises: bias-cutting a woven tubular fabric at between 40* and 50* to the longitudinal axis of the tube to form a continuous strip of fabric; applying a liquid curable binder to the continuous strip; stretching the continuous strip in its width direction by applying lateral outward forces to both edges of the strip simultaneously to thereby increase the angle between the complementary threads of the strip to 100* -160*; curing the binder composition to stabilize the angular positions of the threads; applying an elastomeric material to the continuous strip; slitting the continuous strip longitudinally of itself into a plurality of long tapes each of which is of sufficient length to completely cover the elastomeric core when wrapped therearound; and wrapping one of said tapes, without splicing to another tape, around the elastomeric core.
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) | 1977-01-07 | 1977-07-09 | 1978-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-07 | 1981-07-09 | 1982-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-07 | 1985-07-09 | 1986-01-08 | $7700.00 | Window Closed / Lapsed |