US3230787A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power transmission apparatus
Assignee: BRIEN Manufacturing CORP O
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Filing: 1963-12-18
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Granted: 1966-01-25
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Expires: 1983-12-18
Abstract
No abstract record available.
Inventors
- 👤 Burton L Siegal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:25
CPC Classifications
F; F16; F16H; F16H61/00; F16H61/66; F16H61/662; F16H61/66227; F16D; F16D43/00; F16D43/02; F16D43/04; F16D43/14; F16D43/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
IN A SPEED-CHANGE POWER TRANSMISSION OF THE CHARACTER DESCRIBED, IN COMBINATION, A ROTATABLE SHAFT, A SPLIT PULLEY ON SAID SHAFT INCLUDING AN AXIALLY FIXED PULLEY SECTION AND AN AXIALLY SLIDABLE PULLEY SECTION, EACH OF SAID PULLEY SECTIONS HAVING A HUB PORTION FROM WHICH THERE PROJECTS OUTWARDLY A FRUSTO-CONICAL WALL, THE TWO FRUSTOCONICAL WALLS DEFINING THEREBETWEEN A VARIABLE WIDTH VGROOVE FOR RECEPTION THEREIN OF A V-BELT WHEREBY THE EFFECTIVE DIAMETER OF THE PULLEY IS A FUNCTION OF GROOVE WIDTH, MEANS CONNECTING SAID PULLEY SECTIONS AND SHAFT FOR CONJOINT ROTATION IN UNISON, CENTRIFUGALLY RESPONSIVE MEANS FOR SHIFTING SAID AXIALLY SLIDABLE PULLEY SECTION TOWARD AND AWAY FROM SAID AXIALLY FIXED PULLEY SECTION, A CYLINDRICAL WALL PROJECTING LATERALLY FROM THE LARGE BASE
Claim 2
Dependent Claim
118 words
IN A SPEED-CHANGE POWER TRANSMISSION OF THE CHARACTER DESCRIBED, IN COMBINATION, A ROTATABLE SHAFT, A SPLIT PULLEY ON SAID SHAFT INCLUDING AN AXIALLY FIXED PULLEY SECTION AND AN AXIALLY SLIDABLE PULLEY SECTION, EACH OF SAID PULLEY SECTIONS HAVING A HUB PORTION FROM WHICH THERE PROJECTS OUTWARDLY A FRUSTO-CONICAL WALL, THE TWO FRUSTOCONICAL WALLS DEFINING THEREBETWEEN A VARIABLE WIDTH VGROOVE FOR RECEPTION THEREIN OF A V-BELT WHEREBY THE EFFECTIVE DIAMETER OF THE PULLEY IS A FUNCTION OF GROOVE WIDTH, MEANS CONNECTING SAID PULLEY SECTIONS AND SHAFT FOR CONJOINT ROTATION IN UNISON, CENTRIFUGALLY RESPONSIVE MEANS FOR SHIFTING SAID AXIALLY SLIDABLE PULLEY SECTION TOWARD AND AWAY FROM SAID AXIALLY FIXED PULLEY SECTION, A CYLINDRICAL WALL PROJECTING LATERALLY FROM THE LARGE BASE
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) | 1969-01-24 | 1969-07-26 | 1970-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-24 | 1973-07-26 | 1974-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-24 | 1977-07-26 | 1978-01-25 | $7700.00 | Window Closed / Lapsed |