US3249020A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pump or motor
Assignee: Individual
•
Filing: 1962-10-08
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Granted: 1966-05-03
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Expires: 1982-10-08
Abstract
No abstract record available.
Inventors
- 👤 Victor N Albertson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:42
CPC Classifications
F; F01; F01B; F01B3/00; F01B3/0082; F01B3/0085; F01B3/0032; F01B3/0035; F01B3/04; F01B3/10; F01B3/103; F01B3/108; F04; F04B; F04B49/00; F04B49/005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
A PUMP OR MOTOR COMPRISING: AN OUTER HOUSING HAVING END CAPS AT OPPOSITE ENDS THEREOF, A CYLINDRICAL MEMBER ROTATABLY MOUNTED WITH RESPECT TO SAID END CAPS, AN INTAKE COMMUTATOR AND EXHAUST COMMUTATOR MOUNTED WITHIN SAID OUTER HOUSING AND SLIDABLY MOUNTED AROUND SAID CYLINDRICAL MEMBER, EACH OF SAID COMMUTATORS COMPRISING A SEPARATE CENTRAL DEPRESSED PORTION FORMING AN ANNULAR PASSAGEWAY, AN INTAKE LINE OPEN TO THE ANNULAR PASSAGEWAY COMPRISING SAID INTAKE COMMUTATOR, AN EXHAUST LINE OPEN TO THE ANNULAR PASSAGEWAY COMPRISING SAID EXHAUST COMMUATATOR, A PLURALITY OF AXIALLY EXTENDING CYLINDRICAL OPENINGS IN SAID CYLINDRICAL MEMBER FORMING POWER CYLINDERS, A PAIR OF CAM TRACKS EACH INTEGRAL WITH ONE END CAP AND ALIGNED WITH SAID POWER CYLINDERS, EACH OF SAID CAM TRACKS BEING COMPRISED OF A PLURALITY OF LOBES DEFINED BY HIGH POINTS AND LOW POINTS WITH INCLINED SURFACE JOINING ADJACENT HIGH AND LOW POINTS THE
Claim 2
Dependent Claim
142 words
A PUMP OR MOTOR COMPRISING: AN OUTER HOUSING HAVING END CAPS AT OPPOSITE ENDS THEREOF, A CYLINDRICAL MEMBER ROTATABLY MOUNTED WITH RESPECT TO SAID END CAPS, AN INTAKE COMMUTATOR AND EXHAUST COMMUTATOR MOUNTED WITHIN SAID OUTER HOUSING AND SLIDABLY MOUNTED AROUND SAID CYLINDRICAL MEMBER, EACH OF SAID COMMUTATORS COMPRISING A SEPARATE CENTRAL DEPRESSED PORTION FORMING AN ANNULAR PASSAGEWAY, AN INTAKE LINE OPEN TO THE ANNULAR PASSAGEWAY COMPRISING SAID INTAKE COMMUTATOR, AN EXHAUST LINE OPEN TO THE ANNULAR PASSAGEWAY COMPRISING SAID EXHAUST COMMUATATOR, A PLURALITY OF AXIALLY EXTENDING CYLINDRICAL OPENINGS IN SAID CYLINDRICAL MEMBER FORMING POWER CYLINDERS, A PAIR OF CAM TRACKS EACH INTEGRAL WITH ONE END CAP AND ALIGNED WITH SAID POWER CYLINDERS, EACH OF SAID CAM TRACKS BEING COMPRISED OF A PLURALITY OF LOBES DEFINED BY HIGH POINTS AND LOW POINTS WITH INCLINED SURFACE JOINING ADJACENT HIGH AND LOW POINTS THE
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) | 1969-05-02 | 1969-11-01 | 1970-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-02 | 1973-11-01 | 1974-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-02 | 1977-11-01 | 1978-05-03 | $7700.00 | Window Closed / Lapsed |