US3224198A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrostatic machine
Assignee: Individual
•
Filing: 1964-12-23
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Granted: 1965-12-21
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Expires: 1984-12-23
Abstract
No abstract record available.
Inventors
- 👤 Schimkat Gerhard Franz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:26
CPC Classifications
F; F16; F16H; F16H39/00; F16H39/04; F16H39/06; F16H39/34; F16H39/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
IN A VARIBLE SPEED HYDROSTATIC MACHINE, A SINGLE HOUSING, AND A PAIR OF MIRROR SYMMETRICAL INTERNL-GEARTYPE ROTRY PUMPS ONE OF WHICH FUNCTIONS AS A MOTOR AND IS DRIVEN BY THE OTHER THEREOF, SAID PUMPS BEING MOUNTED IN AND EACH THEREOF DEFINING WITH SAID HOUSING AN ARCUATE WORKING CHAMBER, EACH PUMP HAVING AN AXIALLY MOVABLE ROTOR PROVIDED WITH A PLURALITY OF PISTONS EXTENDING INTO AND ARRANGED TO ORBIT IN THE CORRESPONDING WORKING CHAMBER.
Claim 2
Dependent Claim
72 words
IN A VARIBLE SPEED HYDROSTATIC MACHINE, A SINGLE HOUSING, AND A PAIR OF MIRROR SYMMETRICAL INTERNL-GEARTYPE ROTRY PUMPS ONE OF WHICH FUNCTIONS AS A MOTOR AND IS DRIVEN BY THE OTHER THEREOF, SAID PUMPS BEING MOUNTED IN AND EACH THEREOF DEFINING WITH SAID HOUSING AN ARCUATE WORKING CHAMBER, EACH PUMP HAVING AN AXIALLY MOVABLE ROTOR PROVIDED WITH A PLURALITY OF PISTONS EXTENDING INTO AND ARRANGED TO ORBIT IN THE CORRESPONDING WORKING CHAMBER.
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) | 1968-12-20 | 1969-06-21 | 1969-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-20 | 1973-06-21 | 1973-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-20 | 1977-06-21 | 1977-12-21 | $7700.00 | Window Closed / Lapsed |