US3150856A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control valve
Assignee: Trico Products Corp
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Filing: 1962-11-29
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Granted: 1964-09-29
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Expires: 1982-11-29
Abstract
No abstract record available.
Inventors
- 👤 Raymond A Deibel
- 👤 William C Riester
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:29
CPC Classifications
B; B60; B60S; B60S1/00; B60S1/02; B60S1/46; B60S1/48; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86919; Y10T137/87169; Y10T137/87233; Y10T137/87241
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
165 words
A REMOTELY CONTROLLED VALVE ASSEMBLY FOR CONTROLLING A FLUID PRESSURE STREAM IN A FLUID ACTUATED SYSTEM COMPRISING A VALVE BODY HAVING A MOVABLE WALL DIVIDING SAID BODY INTO FIRST AND SECOND CHAMBERS, INLET MEANS FOR CONNECTING SAID FIRST CHAMBER TO A SOURCE OF VACUUM, OUTLET MEANS IN SAID FIRST CHAMBER FOR CONNECTION TO A FLUID ACTUATED SYSTEM, VALVE MEANS IN SAID FIRST CHAMBER FOR CONTROLLING COMMUNICATION BETWEEN SAID INLET MEANS AND SAID OUTLET MEANS, A PLUNGER OPERATIVELY ENGAGING SAID MOVABLE WALL FOR ENGAGING AND ACTUATING SAID VALVE MEANS, MEANS FOR EFFECTING COMMUNICATION BETWEEN SAID FIRST AND SECOND CHAMBERS WHEN SAID PLUNGER IS OUT OF ENGAGEMENT WITH SAID VALVE MEANS TO THEREBY EFFECT VACUUM SUSPENSION OF SAID MOVABLE WALL, MEANS FOR EFFECTING RESTRICTED COMMUNICATION BETWEEN SAID FIRST AND SECOND CHAMBERS WHEN SAID PLUNGER IS IN ENGAGEMENT WITH SAID VALVE MEANS, CONTROL MEANS FOR ADMITTING PRESSURE FROM A FLUID PRESSURE SOURCE TO SAID SECOND CHAMBER, SAID FLUID PRESSURE SOURCE BEING AT HIGHER PRESSURE THAN SAID VACUUM SOURCE.
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) | 1967-09-29 | 1968-03-30 | 1968-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-29 | 1972-03-30 | 1972-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-29 | 1976-03-30 | 1976-09-29 | $7700.00 | Window Closed / Lapsed |