Patent US3370785A successfully refreshed from Google Patents.
US3370785A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid flow control mechanism
Assignee: Motors Liquidation Co
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Filing: 1966-06-09
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Granted: 1968-02-27
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Expires: 1986-06-09
Abstract
No abstract record available.
Inventors
- 👤 James E Pasek
- 👤 Frederick L J Rehfeld
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:40
CPC Classifications
F; F01; F01N; F01N3/00; F01N3/08; F01N3/10; F01N3/18; F01N3/22; F01N3/227; F01N3/24; F01N3/30; F01N3/32; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
173 words
AN AIR PUMP INCLUDING A HOUSING HAVING AN INTERNAL PERIPHERAL WALL FORMING A CAVITY, AN IMPELLER POSITIONED WITHIN SAID CAVITY AND HAVING AN EXTERNAL PERIPHERAL WALL AT LEAST PORTIONS OF WHICH ARE RADIALLY SPACE FROM SAID INTERNAL PERIPHERAL WALL TO FORM A WORKING CHAMBER, SAID WORKING CHAMBER HAVING AN INLET, SAID IMPELLER HAVING A DRIVE SHAFT EXTENDING EXTERIORLY OF SAID HOUSING, ROTATION OF SAID DRIVE SHAFT CAUSING AN AIR FLOW INTO SAID WORKING CHAMBER THROUGH SAID INLET, AND AN AIR CLEANER SECURED UPON SAID DRIVE SHAFT FOR ROTATION THEREWITH, SAID AIR PUMP HAVING AN AIR FLOW PATH TO SAID INLET RESTRICTED TO PASS THROUGH SAID AIR CLEANER, SAID AIR CLEANER COMPRISING A DISC MEMBER HAVING A PLURALITY OF RADIALLY EXTENDING PASSAGES FORMED THEREIN, SAID PASSAGES BEING OPEN AT THEIR RADIALLY OUTERMOST ENDS TO THE ATMOSPHERE, SAID PASSAGES BEING OPEN AT THEIR RADIALLY INNERMOST ENDS TO SAID INLET, ROTATION OF SAID DISC MEMBER AND CONCURRENT AIR FLOW THERETHROUGH CAUSING A SEPARATION OF FOREIGN MATERIAL FROM AND CLEANING OF THE AIR FLOW TO SAID INLET.
Claim 2
Dependent Claim
173 words
AN AIR PUMP INCLUDING A HOUSING HAVING AN INTERNAL PERIPHERAL WALL FORMING A CAVITY, AN IMPELLER POSITIONED WITHIN SAID CAVITY AND HAVING AN EXTERNAL PERIPHERAL WALL AT LEAST PORTIONS OF WHICH ARE RADIALLY SPACE FROM SAID INTERNAL PERIPHERAL WALL TO FORM A WORKING CHAMBER, SAID WORKING CHAMBER HAVING AN INLET, SAID IMPELLER HAVING A DRIVE SHAFT EXTENDING EXTERIORLY OF SAID HOUSING, ROTATION OF SAID DRIVE SHAFT CAUSING AN AIR FLOW INTO SAID WORKING CHAMBER THROUGH SAID INLET, AND AN AIR CLEANER SECURED UPON SAID DRIVE SHAFT FOR ROTATION THEREWITH, SAID AIR PUMP HAVING AN AIR FLOW PATH TO SAID INLET RESTRICTED TO PASS THROUGH SAID AIR CLEANER, SAID AIR CLEANER COMPRISING A DISC MEMBER HAVING A PLURALITY OF RADIALLY EXTENDING PASSAGES FORMED THEREIN, SAID PASSAGES BEING OPEN AT THEIR RADIALLY OUTERMOST ENDS TO THE ATMOSPHERE, SAID PASSAGES BEING OPEN AT THEIR RADIALLY INNERMOST ENDS TO SAID INLET, ROTATION OF SAID DISC MEMBER AND CONCURRENT AIR FLOW THERETHROUGH CAUSING A SEPARATION OF FOREIGN MATERIAL FROM AND CLEANING OF THE AIR FLOW TO SAID INLET.
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) | 1971-02-26 | 1971-08-28 | 1972-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-26 | 1975-08-28 | 1976-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-26 | 1979-08-28 | 1980-02-27 | $7700.00 | Window Closed / Lapsed |