US3124960A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clark
Assignee: —
•
Filing: —
•
Granted: 1964-03-17
•
Expires: 1981-03-17
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:12
CPC Classifications
G; G01; G01L; G01L7/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
A PRESSURE RESPONSIVE MOTOR COMPRISING WALL MEANS FORMING A CLOSED CHAMBER, AT LEAST ONE WALL OF SAID CHAMBER BEING MOVABLE IN RESPONSE TO EXTERNAL AMBIENT PRESSURE VARIATIONS, AN OPENING THROUGH THE WALL MEANS, DIFFERENTIAL PRESSURE RESPONSIVE VALVE MEANS FOR SAID OPENING TO RESTRICT FLOW OF AMBIENT PRESSURE FLUID THERETHROUGH IN ONE DIRECTION AND PERMIT FLOW OF AMBIENT PRESSURE FLUID IN THE OTHER DIRECTION, AND MOTION SENSING MEANS, AND MEANS MOUNTING SAID MOTION SENSING MEANS IN THE PATH OF TRAVEL OF SAID ONE MOVABLE WALL OF THE CHAMBER.
Claim 2
Dependent Claim
87 words
A PRESSURE RESPONSIVE MOTOR COMPRISING WALL MEANS FORMING A CLOSED CHAMBER, AT LEAST ONE WALL OF SAID CHAMBER BEING MOVABLE IN RESPONSE TO EXTERNAL AMBIENT PRESSURE VARIATIONS, AN OPENING THROUGH THE WALL MEANS, DIFFERENTIAL PRESSURE RESPONSIVE VALVE MEANS FOR SAID OPENING TO RESTRICT FLOW OF AMBIENT PRESSURE FLUID THERETHROUGH IN ONE DIRECTION AND PERMIT FLOW OF AMBIENT PRESSURE FLUID IN THE OTHER DIRECTION, AND MOTION SENSING MEANS, AND MEANS MOUNTING SAID MOTION SENSING MEANS IN THE PATH OF TRAVEL OF SAID ONE MOVABLE WALL OF THE 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) | 1967-03-17 | 1967-09-16 | 1968-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-17 | 1971-09-16 | 1972-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-17 | 1975-09-16 | 1976-03-17 | $7700.00 | Window Closed / Lapsed |