US3863516A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Endless power transmission belt
Assignee: Dayco Products LLC
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Filing: 1973-10-11
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Granted: 1975-02-04
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Expires: 1993-10-11
Abstract
Abstract An endless power transmission belt having a tension section, compression section, and a load-carrying section wherein at least one of the sections is comprised of a poly (propylene oxide) rubber and a textile material with the poly (propylene oxide) rubber being blended with neoprene rubber to provide a rubber blend which adheres to the textile material.
Inventors
- 👤 David G Fisher
- 👤 Mark W Krueger
- 👤 Clinton L Bishop
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 00:45
CPC Classifications
F; F16; F16G; F16G5/00; F16G5/04; F16G5/06; F16G5/08; F16G5/16; F16G5/166
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
36 words
A belt as set forth in claim 1 in which said one section is said load-carrying section and said textile material is in the form of a spirally wound load-carrying cord having said blend adhered thereto.
Claim 2
Dependent Claim
21 words
A belt as set forth in claim 2 in which said tension and compression sections are also made of said blend.
Claim 3
Dependent Claim
38 words
A belt as set forth in claim 1 in which said one section is said load-carrying section and said textile material is in the form of a spirally wound load-carrying cord having a coating of said blend therearound.
Claim 4
Dependent Claim
23 words
A belt as set forth in claim 4 in which said tension and compression sections are made of said poly (propylene oxide) rubber.
Claim 5
Dependent Claim
37 words
A belt as set forth in claim 1 in which said one section is said tension section and said textile material comprises at least one layer of a textile fabric having opposed surfaces bonded to said blend.
Claim 6
Dependent Claim
37 words
A belt as set forth in claim 1 in which said one section is said compression section and said textile material comprises at least one laYer of a textile fabric having opposed surfaces bonded to said blend.
Claim 7
Dependent Claim
22 words
A belt as set forth in claim 1 in which said textile material is in the form of a woven textile fabric.
Claim 8
Dependent Claim
26 words
A belt as set forth in claim 1 in which said rubber blend constitutes 50 percent poly (propylene oxide) rubber and 50% neoprene rubber by weight.
Claim 9
Dependent Claim
41 words
A belt as set forth in claim 1 having a cover made of a textile material, said cover having a layer of said rubber blend on its inside surface to assure said cover adheres around said belt in a high-strength manner.
Claim 10
Dependent Claim
34 words
A belt as set forth in claim 10 in which said cover is made of a woven textile material and said rubber blend also extends between the warps and wefts of said woven fabric.
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) | 1978-02-03 | 1978-08-05 | 1979-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-03 | 1982-08-05 | 1983-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-03 | 1986-08-05 | 1987-02-04 | $7700.00 | Window Closed / Lapsed |