US3306272A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum servo advance mechanism
Assignee: Motorola Solutions Inc
•
Filing: 1965-04-01
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Granted: 1967-02-28
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Expires: 1985-04-01
Abstract
No abstract record available.
Inventors
- 👤 Louis A Bevacqua
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:11
CPC Classifications
F; F02; F02P; F02P5/00; F02P5/04; F02P5/05; F02P5/10; F02P5/103; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18888
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
A VACUUM SERVO ADVANCE MECHANISM INCLUDING IN COMBINATION, A FIRST FIXED PLATE, A SECOND PLATE ROTATABLY MOUNTED WITH RESPECT TO SAID FIRST PLATE, VACUUM MEANS TO ROTATE SAID SECOND PLATE RELATIVE TO SAID FIRST PLATE INCLUDING A VACUUM ACTUATED DIAPHRAGM, PIVOTAL MEANS SUPPORTING SAID VACUUM MEANS ON SAID FIRST PLATE AND LINKING MEANS COUPLING SAID DIAPHRAGM AND SAID PIVOTAL MEANS TO SAID SECOND PLATE, SAID DIAPHRAGM BEING RESPONSIVE TO AN INITIAL VACUUM AND ACTING THROUGH SAID LINKING MEANS TO MOVE SAID SECOND PLATE IN ONE DIRECTION RELATIVE TO SAID FIRST PLATE, SAID LINKING MEANS BEING RESPONSIVE TO INCREASED MOVEMENT OF SAID DIAPHRAGM TO MOVE SAID SECOND PLATE RELATIVE TO SAID FIRST PLATE IN A DIRECTION OPPOSITE TO SAID ONE DIRECTION.
Claim 2
Dependent Claim
120 words
A VACUUM SERVO ADVANCE MECHANISM INCLUDING IN COMBINATION, A FIRST FIXED PLATE, A SECOND PLATE ROTATABLY MOUNTED WITH RESPECT TO SAID FIRST PLATE, VACUUM MEANS TO ROTATE SAID SECOND PLATE RELATIVE TO SAID FIRST PLATE INCLUDING A VACUUM ACTUATED DIAPHRAGM, PIVOTAL MEANS SUPPORTING SAID VACUUM MEANS ON SAID FIRST PLATE AND LINKING MEANS COUPLING SAID DIAPHRAGM AND SAID PIVOTAL MEANS TO SAID SECOND PLATE, SAID DIAPHRAGM BEING RESPONSIVE TO AN INITIAL VACUUM AND ACTING THROUGH SAID LINKING MEANS TO MOVE SAID SECOND PLATE IN ONE DIRECTION RELATIVE TO SAID FIRST PLATE, SAID LINKING MEANS BEING RESPONSIVE TO INCREASED MOVEMENT OF SAID DIAPHRAGM TO MOVE SAID SECOND PLATE RELATIVE TO SAID FIRST PLATE IN A DIRECTION OPPOSITE TO SAID ONE DIRECTION.
References Cited (Backward Citations)
US3162184A
Cited
US3220395A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-27 | 1970-08-29 | 1971-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-27 | 1974-08-29 | 1975-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-27 | 1978-08-29 | 1979-02-28 | $7700.00 | Window Closed / Lapsed |