US3378191A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air compressor control system responsive to air flow
Assignee: Caterpillar Inc
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Filing: 1966-09-29
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Granted: 1968-04-16
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Expires: 1986-09-29
Abstract
No abstract record available.
Inventors
- 👤 Richard B Clark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:59
CPC Classifications
F; F04; F04B; F04B49/00; F04B49/22; F04B49/225; F04B35/00; F04B35/002; F04B49/10; F04B49/106; F04B49/20; F04D; F04D27/00; F04D27/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
IN AN AIR COMPRESSOR SYSTEM, THE COMBINATION COMPRISING: A PRIME MOVER HAVING A SPEED GOVERNOR MEANS; A COMPRESSOR DISPOSED TO BE DRIVEN BY SAID PRIME MOVER; A RECEIVER DISPOSED TO RECEIVE AND STORE COMPRESSED AIR FROM SAID COMPRESSOR; A RECEIVER OUTLET DISPOSED WITH RESPECT TO SAID RECEIVER TO PROVIDE A PASSAGE BY WHICH COMPRESSED AIR IS INTERMITTENTLY DRAWN FROM SAID RECEIVER AS DESIRED, SAID INTERMITTENT WITHDRAWAL OF COMPRESSED AIR FROM
Claim 2
Dependent Claim
70 words
IN AN AIR COMPRESSOR SYSTEM, THE COMBINATION COMPRISING: A PRIME MOVER HAVING A SPEED GOVERNOR MEANS; A COMPRESSOR DISPOSED TO BE DRIVEN BY SAID PRIME MOVER; A RECEIVER DISPOSED TO RECEIVE AND STORE COMPRESSED AIR FROM SAID COMPRESSOR; A RECEIVER OUTLET DISPOSED WITH RESPECT TO SAID RECEIVER TO PROVIDE A PASSAGE BY WHICH COMPRESSED AIR IS INTERMITTENTLY DRAWN FROM SAID RECEIVER AS DESIRED, SAID INTERMITTENT WITHDRAWAL OF COMPRESSED AIR FROM
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) | 1971-04-16 | 1971-10-16 | 1972-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-16 | 1975-10-16 | 1976-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-16 | 1979-10-16 | 1980-04-16 | $7700.00 | Window Closed / Lapsed |