US3430442A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve mechanism
Assignee: ATK Launch Systems LLC
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Filing: 1966-12-08
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Granted: 1969-03-04
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Expires: 1986-12-08
Abstract
No abstract record available.
Inventors
- 👤 George B Rabe
- 👤 Walter B Grossman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:55
CPC Classifications
F; F02; F02K; F02K9/00; F02K9/42; F02K9/44; F02K9/56; F02K9/58; F02K9/566; Y; Y10; Y10T; Y10T137/00; Y10T137/1624; Y10T137/1632; Y10T137/1669
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
222 words
IN A ROCKET MOTOR, A VALVE MECHANISM COMPRISING: A HOUSING DEFINING A BORE THE LONGITUDINAL AXIS OF WHICH IS TRANSVERSE TO THE LONGITUDINAL AXIS OF SAID ROCKET MOTOR, AN INLET EXTENDING LATERALLY FROM SAID BORE, AND AN OUTLET EXTENDING LATERALLY FROM SAID BORE AND SPACED FROM SAID INLET LONGITUDINALLY OF SAID BORE; A SHEAR CUP SEALINGLY FIXED TO SAID INLET, AT LEAST A PORTION OF SAID SHEAR CUP PROJECTING INTO SAID BORE; A PISTON DISPOSED IN SAID BORE, SAID PISTON HAVING FIRST AND SECOND PORTIONS SLIDABLY ENGAGED WITH THE WALL OF SAID BORE AND A THIRD PORTION INTERMEDIATE SAID FIRST AND SECOND PORTIONS AND HAVING A SMALLER DIAMETER THAN THE SAME, SAID SECND PORTION HAVING A RECESS IN WHICH SAID PROJECTING PORTION OF SAID SHEAR CUP IS DISPOSED WHEN SAID PISTON IS IN THE FIRST POSITION RELATIVE TO SAID BORE; MEANS FOR RELEASABLY HOLDING SAID PISTON IN SAID FIRST POSITION; MEANS FOR BIASING SAID PISTON TOWARD SAID FIRST POSITION; MEANS FOR PRESSURIZING SAID BORE AT ITS END ADJACENT SAID LONGITUDINAL AXIS OF SAID ROCKET MOTOR, WHEREBY SAID PISTON SLIDES ALONG SAID BORE, SHEARES SAID SHEAR CUP, AND REACHES A SECOND POSITION AT WHICH FLUID CAN FLOW THROUGH SAID INLET, AROUND SAID THIRD PORTION OF SAID PISTON, AND OUT SAID OUTLET; AND MEANS FOR ARRESTING MOVEMENT OF SAID PISTON AT SAID SECOND POSITION.
Claim 2
Dependent Claim
222 words
IN A ROCKET MOTOR, A VALVE MECHANISM COMPRISING: A HOUSING DEFINING A BORE THE LONGITUDINAL AXIS OF WHICH IS TRANSVERSE TO THE LONGITUDINAL AXIS OF SAID ROCKET MOTOR, AN INLET EXTENDING LATERALLY FROM SAID BORE, AND AN OUTLET EXTENDING LATERALLY FROM SAID BORE AND SPACED FROM SAID INLET LONGITUDINALLY OF SAID BORE; A SHEAR CUP SEALINGLY FIXED TO SAID INLET, AT LEAST A PORTION OF SAID SHEAR CUP PROJECTING INTO SAID BORE; A PISTON DISPOSED IN SAID BORE, SAID PISTON HAVING FIRST AND SECOND PORTIONS SLIDABLY ENGAGED WITH THE WALL OF SAID BORE AND A THIRD PORTION INTERMEDIATE SAID FIRST AND SECOND PORTIONS AND HAVING A SMALLER DIAMETER THAN THE SAME, SAID SECND PORTION HAVING A RECESS IN WHICH SAID PROJECTING PORTION OF SAID SHEAR CUP IS DISPOSED WHEN SAID PISTON IS IN THE FIRST POSITION RELATIVE TO SAID BORE; MEANS FOR RELEASABLY HOLDING SAID PISTON IN SAID FIRST POSITION; MEANS FOR BIASING SAID PISTON TOWARD SAID FIRST POSITION; MEANS FOR PRESSURIZING SAID BORE AT ITS END ADJACENT SAID LONGITUDINAL AXIS OF SAID ROCKET MOTOR, WHEREBY SAID PISTON SLIDES ALONG SAID BORE, SHEARES SAID SHEAR CUP, AND REACHES A SECOND POSITION AT WHICH FLUID CAN FLOW THROUGH SAID INLET, AROUND SAID THIRD PORTION OF SAID PISTON, AND OUT SAID OUTLET; AND MEANS FOR ARRESTING MOVEMENT OF SAID PISTON AT SAID SECOND POSITION.
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) | 1972-03-03 | 1972-09-02 | 1973-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-03 | 1976-09-02 | 1977-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-03 | 1980-09-02 | 1981-03-04 | $7700.00 | Window Closed / Lapsed |