US3270729A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic throttle control for air compressors and the like
Assignee: Individual
•
Filing: 1964-03-11
•
Granted: 1966-09-06
•
Expires: 1984-03-11
Abstract
No abstract record available.
Inventors
- 👤 Jr Edward J Swatek
- 👤 Norman J Polcyn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 01:22
CPC Classifications
F; F04; F04B; F04B9/00; F04B9/02; F04B35/00; F04B35/06; F04B49/00; F04B49/02; F04B49/022; F04B49/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
AN AUTOMATIC THROTTLE CONTROL FOR INTERNAL COMBUSTION ENGINES, SAID CONTROL COMPRISING AN AIR CYLINDER, A PISTON IN SAID CYLINDER, A PISTON ROD EXTENDING FROM SAID CYLINDER, A FRAME MEMBER SECURED TO ONE END OF SAID CYLINDER, A SLIDE OPERATIVELY CONNECTED TO SAID PISTON ROD AND MOVABLE ALONG SAID FRAME MEMBER, A COMPRESSION COIL SPRING INTERPOSED BETWEEN SAID FRAME MEMBER AND SAID SLIDE, A LEVER OPERATIVELY CONNECTED TO SAID SLIDE AND MOUNTED FOR PIVOTAL MOVEMENT ON SAID FRAME MEM-
Claim 2
Dependent Claim
78 words
AN AUTOMATIC THROTTLE CONTROL FOR INTERNAL COMBUSTION ENGINES, SAID CONTROL COMPRISING AN AIR CYLINDER, A PISTON IN SAID CYLINDER, A PISTON ROD EXTENDING FROM SAID CYLINDER, A FRAME MEMBER SECURED TO ONE END OF SAID CYLINDER, A SLIDE OPERATIVELY CONNECTED TO SAID PISTON ROD AND MOVABLE ALONG SAID FRAME MEMBER, A COMPRESSION COIL SPRING INTERPOSED BETWEEN SAID FRAME MEMBER AND SAID SLIDE, A LEVER OPERATIVELY CONNECTED TO SAID SLIDE AND MOUNTED FOR PIVOTAL MOVEMENT ON SAID FRAME MEM-
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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) | 1969-09-05 | 1970-03-07 | 1970-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-05 | 1974-03-07 | 1974-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-05 | 1978-03-07 | 1978-09-06 | $7700.00 | Window Closed / Lapsed |