US3358097A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid pressure indicating means
Assignee: Studebaker Worthington Inc
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Filing: 1966-07-21
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Granted: 1967-12-12
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Expires: 1986-07-21
Abstract
No abstract record available.
Inventors
- 👤 Raymond J Kersting
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:52
CPC Classifications
H; H01; H01H; H01H35/00; H01H35/24; H01H35/38; B; B60; B60T; B60T17/00; B60T17/18; B60T17/22; B60T17/226
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
161 words
A FLUID PRESSURE RESPONSIVE CONTROL DEVICE COMPRISING A HOUSING, SWITCHING MEANS MOVABLE IN SAID HOUSING, OTHER MEANS RECIPROCALLY MOVABLE IN SAID HOUSING AND CONTROLLING SAID SWITCHING MEANS, A PAIR OF OPPOSED FLUID PRESSURE RESPONSIVE PORTIONS ON SAID OTHER MEANS AND DEFINING WITH SAID HOUSING A PAIR OF OPPOSED FLUID PRESSURE CHAMBERS, A PAIR OF PORTS IN SAID HOUSING CONNECTED WITH SAID CHAMBERS AND SPACED FROM SAID PORTIONS, A PAIR OF RESILIENT MEANS IN SAID CHAMBERS FOR ENGAGEMENT WITH SAID PORTIONS TO OPPOSE MOVEMENT OF SAID OTHER MEANS, SAID OTHER MEANS BEING MOVABLE AGAINST ONE OF SAID RESILIENT MEANS TOWARD A POSITION ACTUATING SAID SWITCHING MEANS IN RESPONSE TO A SUSTAINED PREDETERMINED FLUID PRESSURE DIFFERENTIAL BETWEEN APPLIED FLUID PRESSURE AT SAID PORT ACTING ON SAID OPPOSED PORTIONS, AND A PAIR OF ORIFICE MEANS BETWEEN SAID PORTS AND OPPOSED PORTIONS TO A DAMPEN SURGES IN THE APPLIED FLUID PRESSURE AND OBVIATE THE SWITCHING MEANS ACTUATING MOVEMENT OF SAID OTHER MEANS IN RESPONSE THERETO.
Claim 2
Dependent Claim
161 words
A FLUID PRESSURE RESPONSIVE CONTROL DEVICE COMPRISING A HOUSING, SWITCHING MEANS MOVABLE IN SAID HOUSING, OTHER MEANS RECIPROCALLY MOVABLE IN SAID HOUSING AND CONTROLLING SAID SWITCHING MEANS, A PAIR OF OPPOSED FLUID PRESSURE RESPONSIVE PORTIONS ON SAID OTHER MEANS AND DEFINING WITH SAID HOUSING A PAIR OF OPPOSED FLUID PRESSURE CHAMBERS, A PAIR OF PORTS IN SAID HOUSING CONNECTED WITH SAID CHAMBERS AND SPACED FROM SAID PORTIONS, A PAIR OF RESILIENT MEANS IN SAID CHAMBERS FOR ENGAGEMENT WITH SAID PORTIONS TO OPPOSE MOVEMENT OF SAID OTHER MEANS, SAID OTHER MEANS BEING MOVABLE AGAINST ONE OF SAID RESILIENT MEANS TOWARD A POSITION ACTUATING SAID SWITCHING MEANS IN RESPONSE TO A SUSTAINED PREDETERMINED FLUID PRESSURE DIFFERENTIAL BETWEEN APPLIED FLUID PRESSURE AT SAID PORT ACTING ON SAID OPPOSED PORTIONS, AND A PAIR OF ORIFICE MEANS BETWEEN SAID PORTS AND OPPOSED PORTIONS TO A DAMPEN SURGES IN THE APPLIED FLUID PRESSURE AND OBVIATE THE SWITCHING MEANS ACTUATING MOVEMENT OF SAID OTHER MEANS IN RESPONSE THERETO.
References Cited (Backward Citations)
US2764176A
Cited
US3228194A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-12-11 | 1971-06-12 | 1971-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-11 | 1975-06-12 | 1975-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-11 | 1979-06-12 | 1979-12-12 | $7700.00 | Window Closed / Lapsed |