US2721158A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power transmission belt
Assignee: Hartford National Bank and Trust Co
•
Filing: 1950-08-14
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Granted: 1955-10-18
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Expires: 1970-08-14
Abstract
No abstract record available.
Inventors
- 👤 Mans Leonardus Frans Helene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 01:11
CPC Classifications
F; F16; F16G; F16G9/00; Y; Y10; Y10T; Y10T24/00; Y10T24/16; Y10T24/1676; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2973; Y10T428/2975
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
A POWER TRANSMISSION BELT COMPRISING A TEXTILE CORE, SAID CORE BEING COVERED BY A THERMOPLASTIC MASS, AN INTERMEDIATE LAYER BETWEEN SAID CORE AND SAID THERMOPLASTIC MASS WHICH IMPREGNATES AND ADHERES TO THE CORE AND ALSO ADHERES TO THE THERMOPLASTIC MASS TO PREVENT SHIFTING OF SAID CORE, SAID INTERMEDIATE LAYER COMPRISING A DISPERSION OF 1 PART OF POLYVINYLCHLORIDE IN 1 PART OF DIOCTYLPHTHALATE, SAID BELT HAVING ENDS WHICH ARE JOINED TOGETHER, SAID CORE BEING INTERRUPTED AT THE POINT OF JUNCTURE SO THAT THE JOINT IS WHOLLY OF THE THERMOPLASTIC MASS, THE CROSS-SECTION OF SAID THERMOPLASTIC MASS BEING GREAT ENOUGH TO WITHSTAND THE LOAD WITHOUT COOPERATION OF SAID INTERMEDIATE LAYER AND SAI D CORE
Claim 2
Dependent Claim
112 words
A POWER TRANSMISSION BELT COMPRISING A TEXTILE CORE, SAID CORE BEING COVERED BY A THERMOPLASTIC MASS, AN INTERMEDIATE LAYER BETWEEN SAID CORE AND SAID THERMOPLASTIC MASS WHICH IMPREGNATES AND ADHERES TO THE CORE AND ALSO ADHERES TO THE THERMOPLASTIC MASS TO PREVENT SHIFTING OF SAID CORE, SAID INTERMEDIATE LAYER COMPRISING A DISPERSION OF 1 PART OF POLYVINYLCHLORIDE IN 1 PART OF DIOCTYLPHTHALATE, SAID BELT HAVING ENDS WHICH ARE JOINED TOGETHER, SAID CORE BEING INTERRUPTED AT THE POINT OF JUNCTURE SO THAT THE JOINT IS WHOLLY OF THE THERMOPLASTIC MASS, THE CROSS-SECTION OF SAID THERMOPLASTIC MASS BEING GREAT ENOUGH TO WITHSTAND THE LOAD WITHOUT COOPERATION OF SAID INTERMEDIATE LAYER AND SAI D CORE
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-10-17 | 1959-04-18 | 1959-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-10-17 | 1963-04-18 | 1963-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-10-17 | 1967-04-18 | 1967-10-18 | $7700.00 | Window Closed / Lapsed |