Patent US3919892A successfully refreshed from Google Patents.
US3919892A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Endless power transmission belt structure
Assignee: Dayco Products LLC
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Filing: 1974-08-12
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Granted: 1975-11-18
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Expires: 1994-08-12
Abstract
Abstract An endless power transmission belt structure is provided and has load-carrying means and a thermoplastic elastomer on at least one side of the load-carrying means with a rubber compound arranged between the load-carrying means and the thermoplastic elastomer with the rubber compound assuring the provision of a tenacious bond between the thermoplastic elastomer and the load-carrying means.
Inventors
- 👤 David G Ballou
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:02
CPC Classifications
F; F16; F16G; F16G5/00; F16G5/12; F16G5/14; F16G5/16; F16G5/166
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
55 words
An endless power transmission belt structure comprising, load-carrying means, a thermoplastic polyester elastomer on at least one side of said load-carrying means, and a rubber compound arranged between said load-carrying means and said thermoplastic polyester elastomer, said rubber compound assuring the provision of a tenacious bond between said thermoplastic polyester elastomer and said load-carrying means.
Claim 2
Dependent Claim
55 words
An endless power transmission belt structure comprising, load-carrying means, a thermoplastic polyester elastomer on at least one side of said load-carrying means, and a rubber compound arranged between said load-carrying means and said thermoplastic polyester elastomer, said rubber compound assuring the provision of a tenacious bond between said thermoplastic polyester elastomer and said load-carrying means.
Claim 3
Dependent Claim
19 words
A belt structure as set forth in claim 1 in which said rubber compound is a chlorinated rubber compound.
Claim 4
Dependent Claim
24 words
A belt structure as set forth in claim 1 and further comprising a thermoplastic polyester elastomer on the other side of said load-carrying means.
Claim 5
Dependent Claim
19 words
A belt structure as set forth in claim 3 in which said rubber compound is a chlorinated rubber compound.
Claim 6
Dependent Claim
52 words
A belt structure as set forth in claim 4 in which said thermoplastic polyester elastomer on said one side of said load-carrying means defines the tension section of an endless belt and said thermoplastic polyester elastomer on said other side of said load-carrying means defines the compression section of said endless belt.
Claim 7
Dependent Claim
47 words
A belt structure as set forth in claim 4 which defines a platform of an endless power transmission belt and further comprising a rubber compound bonded against said thermoplastic elastomer on said one and on said other side on surfaces thereof arranged remote from said cross-sectional configuration.
Claim 8
Dependent Claim
46 words
A belt structure as set forth in claim 4 in which said thermoplastic polyester elastomer on said one and on said other side comprises a pair of parallel layers defining said belt structure as a flat endless power transmission belt having a substantially rectangular crosssectional configutation.
Claim 9
Dependent Claim
36 words
A belt structure as set forth in claim 1 and further comprising first adhesive means between said load-carrying means and said rubber compound and second adhesive means between said rubber compound and said thermoplastic polyester elastomer.
Claim 10
Dependent Claim
20 words
A belt structure as set forth in claim 8 in which said load-carrying means is a helically wound load-carrying cord.
Claim 11
Dependent Claim
29 words
A belt structure as set forth in claim 9 in which said helically wound load-carrying cord is made of a fibrous material and has a roughly circular cross-sectional configuration.
Claim 12
Dependent Claim
80 words
An endless power transmission belt structure comprising, load-carrying means, a first layer of a thermoplastic polyester elastomer on one side of said load-carrying means, a second layer of a thermoplastic polyester elastomer on the other side of said load-carrying means, and a rubber compound arranged between each of said first and second layers of thermoplastic polyester elastomer and said load-carrying means, said rubber compound assuring the provision of a tenacious bond between said thermoplastic polyester elastomer and said load-carrying means.
Claim 13
Dependent Claim
80 words
An endless power transmission belt structure comprising, load-carrying means, a first layer of a thermoplastic polyester elastomer on one side of said load-carrying means, a second layer of a thermoplastic polyester elastomer on the other side of said load-carrying means, and a rubber compound arranged between each of said first and second layers of thermoplastic polyester elastomer and said load-carrying means, said rubber compound assuring the provision of a tenacious bond between said thermoplastic polyester elastomer and said load-carrying means.
Claim 14
Dependent Claim
19 words
A belt structure as set forth in claim 11 in which said rubber compound is a chlorinaTed rubber compound.
Claim 15
Dependent Claim
44 words
A belt structure as set forth in claim 12 and further comprising first adhesive means between said load-carrying means and said rubber compound and second adhesive means between said rubber compound and each of said first and second layers of said thermoplastic polyester elastomer.
Claim 16
Dependent Claim
19 words
A belt structure as set forth in claim 13 in which said first adhesive means is an isocyanate adhesive.
Claim 17
Dependent Claim
52 words
A belt structure as set forth in claim 12 in which said thermoplastic polyester elastomer on said one side of said load-carrying means defines the tension section of an endless belt and said thermoplastic polyester elastomer on said other side of said load-carrying means defines the compression section of said endless belt.
Claim 18
Dependent Claim
48 words
A belt structure as set forth in claim 12 which defines a platform of an endless power transmission belt and further comprising a chlorinated rubber compound bonded against said thermoplastic elastomer on said one and on said other side on surfaces thereof arranged remote from said load-carrying means.
Claim 19
Dependent Claim
46 words
A belt structure as set forth in claim 12 in which said thermoplastic polyester elastomer on said one and on said other side comprises a pair of parallel layers defining said belt structure as a flat endless power transmission belt having a substantially rectangular cross-sectional configuration.
Claim 20
Dependent Claim
36 words
A belt structure as set forth in claim 12 and further comprising first adhesive means between said load-carrying means and said rubber compound and second adhesive means between said rubber compound and said thermoplastic polyester elastomer.
Claim 21
Dependent Claim
20 words
A belt structure as set forth in claim 18 in which said load-carrying means is a helically wound load-carrying cord.
Claim 22
Dependent Claim
22 words
A belt structure as set forth in claim 19 in which said helically wound load-carrying cord is made of a fibrous material.
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) | 1978-11-17 | 1979-05-19 | 1979-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-17 | 1983-05-19 | 1983-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-17 | 1987-05-19 | 1987-11-18 | $7700.00 | Window Closed / Lapsed |