US3273464A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable volume rotary fluid motor and pump
Assignee: Individual
•
Filing: 1964-04-16
•
Granted: 1966-09-20
•
Expires: 1984-04-16
Abstract
No abstract record available.
Inventors
- 👤 Ross D Thurber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:17
CPC Classifications
F; F03; F03C; F03C1/00; F03C1/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
134 words
A ROTARY MOTOR COMPRISING A RELATIVELY STATIONARY SHAFT ASSEMBLY AND A MOTOR HOUSING JOURNALED THEREON FOR ROTATION ABOUT A HORIZONTAL AXIS, A PLURALITY OF CYLINDERS MOUNTED UPON THE INTERIOR OF SAID HOUSING AND ROTATABLE THEREWITH AND DIRECTED INWARDLY TOWARDS SAID SHAFT ASSEMBLY, A PLURALITY OF PISTON EACH RECIPROCABLE IN ONE OF SAID CYLINDERS, SAID SHAFT ASSEMBLY INCLUDING A CRANKPIN COMPRISING A CYLINDRICAL SLEEVE, A PLURALITY OF CONNECTING RING ROTATABLY JOURNALED UPON SAID SLEEVE IN SIDEBY-SIDE RELATION AND EACH FIXEDLY CONNECTED TO ONE OF SAID PISTON, MEANS FOR CYCLICALLY DELIVERING PRESSURE MOTIVE FLUID TO AND DISCHARGING IT FROM SAID CYLINDERS, MEANS ADJUSTING SAID SLEEVE TOWARDS AND FROM SAID HORIZONTAL AXIS TO THEREBY VARY THE STROKE OF SAID PISTONS IN SAID CYLINDERS AS SAID CYLINDERS AND PISTONS REVOLVE RESPECTIVELY ABOUT SAID HORIZONTAL AXIS AND SAID CRANKPIN.
Claim 2
Dependent Claim
134 words
A ROTARY MOTOR COMPRISING A RELATIVELY STATIONARY SHAFT ASSEMBLY AND A MOTOR HOUSING JOURNALED THEREON FOR ROTATION ABOUT A HORIZONTAL AXIS, A PLURALITY OF CYLINDERS MOUNTED UPON THE INTERIOR OF SAID HOUSING AND ROTATABLE THEREWITH AND DIRECTED INWARDLY TOWARDS SAID SHAFT ASSEMBLY, A PLURALITY OF PISTON EACH RECIPROCABLE IN ONE OF SAID CYLINDERS, SAID SHAFT ASSEMBLY INCLUDING A CRANKPIN COMPRISING A CYLINDRICAL SLEEVE, A PLURALITY OF CONNECTING RING ROTATABLY JOURNALED UPON SAID SLEEVE IN SIDEBY-SIDE RELATION AND EACH FIXEDLY CONNECTED TO ONE OF SAID PISTON, MEANS FOR CYCLICALLY DELIVERING PRESSURE MOTIVE FLUID TO AND DISCHARGING IT FROM SAID CYLINDERS, MEANS ADJUSTING SAID SLEEVE TOWARDS AND FROM SAID HORIZONTAL AXIS TO THEREBY VARY THE STROKE OF SAID PISTONS IN SAID CYLINDERS AS SAID CYLINDERS AND PISTONS REVOLVE RESPECTIVELY ABOUT SAID HORIZONTAL AXIS AND SAID CRANKPIN.
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) | 1969-09-19 | 1970-03-21 | 1970-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-19 | 1974-03-21 | 1974-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-19 | 1978-03-21 | 1978-09-20 | $7700.00 | Window Closed / Lapsed |