Patent US3258927A successfully refreshed from Google Patents.
US3258927A
Expired / Lapsed
US
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Synchronizing device
Assignee: Individual
•
Filing: 1964-03-20
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Granted: 1966-07-05
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Expires: 1984-03-20
Abstract
No abstract record available.
Inventors
- 👤 William B Herbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:23
CPC Classifications
B; B63; B63H; B63H23/00; B63H23/28; F; F02; F02D; F02D25/00; F02D25/02; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19642; Y10T74/19698; Y10T74/19828
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
IN A SERVO MECHANISM OF THE CHARACTER DESCRIBED, THE COMBINATION OF A WORM SHAFT, A SECOND WORM SHAFT IN SPACED PARALLEL RELATION WITH SAID FIRST SHAFT, A WORM GEAR IN MESH WITH SAID FIRST SHAFT, A SECOND WORM GEAR IN SPACED PARALLEL RELATION WITH THE FIRST WORM GEAR AND IN MESH WITH SAID SECOND WORM SHAFT, AND MEANS FOR SELECTIVELY ENGAGING SAID WORM GEARS TO ROTATE AS A UNIT.
Claim 2
Dependent Claim
69 words
IN A SERVO MECHANISM OF THE CHARACTER DESCRIBED, THE COMBINATION OF A WORM SHAFT, A SECOND WORM SHAFT IN SPACED PARALLEL RELATION WITH SAID FIRST SHAFT, A WORM GEAR IN MESH WITH SAID FIRST SHAFT, A SECOND WORM GEAR IN SPACED PARALLEL RELATION WITH THE FIRST WORM GEAR AND IN MESH WITH SAID SECOND WORM SHAFT, AND MEANS FOR SELECTIVELY ENGAGING SAID WORM GEARS TO ROTATE AS A UNIT.
References Cited (Backward Citations)
US1465091A
Cited
US2105089A
Cited
US2292690A
Cited
US2599885A
Cited
US2730908A
Cited
US2896476A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-04 | 1970-01-03 | 1970-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-04 | 1974-01-03 | 1974-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-04 | 1978-01-03 | 1978-07-05 | $7700.00 | Window Closed / Lapsed |