Patent US3270955A successfully refreshed from Google Patents.
US3270955A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air compressor
Assignee: Motors Liquidation Co
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Filing: 1965-03-16
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Granted: 1966-09-06
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Expires: 1985-03-16
Abstract
No abstract record available.
Inventors
- 👤 Curtis W Huyser
- 👤 Jr Frederick T Vaas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:46
CPC Classifications
F; F04; F04C; F04C29/00; F04C29/06; F04C29/065
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
165 words
AN AIR COMPRESSOR COMPRISING, AN OPEN-ENDED CYLINDER FORMING A CAVITY, IMPELLER MEANS IN SAID CAVITY INCLUDING MEANS FOR DIVIDING SAID CAVITY INTO A VARIABLE VOLUME INTAKE CHAMBER AND A VARIABLE VOLUME DISCHARGE CHAMBER, AN INLET AND AN OUTLET IN COMMUNICATION WITH SAID CHAMBERS, A BASE PLATE FOR CLOSING ONE END OF SAID CYLINDER, A COVER PLATE FOR CLOSING THE OTHER END OF SAID CYLINDER HAVING SAID INLET THEREIN, SAID COVER PLATE INCLUDING AN OUTWARDLY OPENED ENCLOSURE HAVING A PLANAR EXTENT SUBSTANTIALLY EQUAL TO THE OTHER DIMENSION OF SAID CYLINDER, AN ANNULAR FILTER DISPOSED WITHIN SAID ENCLOSURE SURROUNDING SAID INLET OPENING IN SPACED RELATIONSHIP THEREWITH, CLOSURE MEANS FOR CLOSING ONE END OF SAID ANNULAR FILTER INCLUDING MEANS FOR PRODUCING AN ANNULAR INLET OPENING INTO SAID ENCLOSURE FOR DIRECTING FLUID INTAKE ACROSS SAID FILTER AND THENCE THROUGH SAID INLET INTO SAID CAVITY, SAID ENCLOSURE MEANS IN COOPERATION WITH SAID ENCLOSURE FORMING A LARGE VOLUME CHAMBER SERVING TO MUFFLE NOISES WITHIN SAID CAVITY PRODUCED DURING TTHE COMPRESSOR OPERATION.
Claim 2
Dependent Claim
165 words
AN AIR COMPRESSOR COMPRISING, AN OPEN-ENDED CYLINDER FORMING A CAVITY, IMPELLER MEANS IN SAID CAVITY INCLUDING MEANS FOR DIVIDING SAID CAVITY INTO A VARIABLE VOLUME INTAKE CHAMBER AND A VARIABLE VOLUME DISCHARGE CHAMBER, AN INLET AND AN OUTLET IN COMMUNICATION WITH SAID CHAMBERS, A BASE PLATE FOR CLOSING ONE END OF SAID CYLINDER, A COVER PLATE FOR CLOSING THE OTHER END OF SAID CYLINDER HAVING SAID INLET THEREIN, SAID COVER PLATE INCLUDING AN OUTWARDLY OPENED ENCLOSURE HAVING A PLANAR EXTENT SUBSTANTIALLY EQUAL TO THE OTHER DIMENSION OF SAID CYLINDER, AN ANNULAR FILTER DISPOSED WITHIN SAID ENCLOSURE SURROUNDING SAID INLET OPENING IN SPACED RELATIONSHIP THEREWITH, CLOSURE MEANS FOR CLOSING ONE END OF SAID ANNULAR FILTER INCLUDING MEANS FOR PRODUCING AN ANNULAR INLET OPENING INTO SAID ENCLOSURE FOR DIRECTING FLUID INTAKE ACROSS SAID FILTER AND THENCE THROUGH SAID INLET INTO SAID CAVITY, SAID ENCLOSURE MEANS IN COOPERATION WITH SAID ENCLOSURE FORMING A LARGE VOLUME CHAMBER SERVING TO MUFFLE NOISES WITHIN SAID CAVITY PRODUCED DURING TTHE COMPRESSOR OPERATION.
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) | 1969-09-05 | 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 |