US3292370A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power transmission apparatus
Assignee: National Research Development Corp UK
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Filing: 1965-09-03
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Granted: 1966-12-20
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Expires: 1985-09-03
Abstract
No abstract record available.
Inventors
- 👤 Foster Keith
- 👤 Parker Graham Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:37
CPC Classifications
B; B25; B25D; B25D9/00; B25D9/06; B25D9/12; B06; B06B; B06B1/00; B06B1/18; B06B1/183; F; F16; F16H; F16H43/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
POWER TRANSMISSION APPARATUS COMPRISING MEANS DEFINING A CHAMBER HAVING FIRST AND SECOND PORTIONS FOR PRESSURE FLUID, A MOVABLE PRESSURE RESPONSIVE DEVICE HAVING FIRST AND SECOND OPPOSED FACES COMPRISING RESPECTIVE MOVABLE WALLS OF SAID FIRST AND SECOND PORTIONS, SUPPLY CONDUIT MEANS FOR CONNECTING SAID FIRST PORTION OF THE CHAMBER TO A SOURCE OF FLUID PRESSURE OSCILLATIONS TO CAUSE OSCILLATION OF SAID PRESSURE RESPONSIVE DEVICE, A LOAD DRIVING MEMBER WHICH IS DRIVINGLY CONNECTED TO THE PRESSURE RESPONSIVE DEVICE, PRESSURE BALANCE CONDUIT MEANS CONNECTED BETWEEN SAID FIRST AND SECOND PORTION OF THE CHAMBER FOR THE TRANSMISSION OF FLUID PRESSURE OSCILLATIONS FROM SAID FIRST TO SAID SECOND PORTION, AND VALVE MEANS IN SAID PRESSURE BALANCE CONDUIT MEANS FOR SELECTIVELY PERMITTING AND RESTRICTING TRANSMISSION OF SAID FLUID PRESSURE OSCILLATIONS THROUGH SAID PRESSURE BALANCE CONDUIT MEANS.
Claim 2
Dependent Claim
130 words
POWER TRANSMISSION APPARATUS COMPRISING MEANS DEFINING A CHAMBER HAVING FIRST AND SECOND PORTIONS FOR PRESSURE FLUID, A MOVABLE PRESSURE RESPONSIVE DEVICE HAVING FIRST AND SECOND OPPOSED FACES COMPRISING RESPECTIVE MOVABLE WALLS OF SAID FIRST AND SECOND PORTIONS, SUPPLY CONDUIT MEANS FOR CONNECTING SAID FIRST PORTION OF THE CHAMBER TO A SOURCE OF FLUID PRESSURE OSCILLATIONS TO CAUSE OSCILLATION OF SAID PRESSURE RESPONSIVE DEVICE, A LOAD DRIVING MEMBER WHICH IS DRIVINGLY CONNECTED TO THE PRESSURE RESPONSIVE DEVICE, PRESSURE BALANCE CONDUIT MEANS CONNECTED BETWEEN SAID FIRST AND SECOND PORTION OF THE CHAMBER FOR THE TRANSMISSION OF FLUID PRESSURE OSCILLATIONS FROM SAID FIRST TO SAID SECOND PORTION, AND VALVE MEANS IN SAID PRESSURE BALANCE CONDUIT MEANS FOR SELECTIVELY PERMITTING AND RESTRICTING TRANSMISSION OF SAID FLUID PRESSURE OSCILLATIONS THROUGH SAID PRESSURE BALANCE CONDUIT MEANS.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-19 | 1970-06-20 | 1970-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-19 | 1974-06-20 | 1974-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-19 | 1978-06-20 | 1978-12-20 | $7700.00 | Window Closed / Lapsed |