US3667216A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressurization system
Assignee: RTX Corp
•
Filing: 1968-09-27
•
Granted: 1972-06-06
•
Expires: 1988-09-27
Abstract
Abstract A pressurization system for supplying a constant pressure source including a liquid propellant source, a reaction chamber for disposing the liquid propellant into a gasified product, a storage tank for storing the gasified products and a feedback system for maintaining the output pressure from the storage tank.
Inventors
- 👤 Victor A De Mattia Jr
- 👤 Vincent J Sansevero Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:20
CPC Classifications
F; F02; F02K; F02K9/00; F02K9/42; F02K9/44; F02K9/50; B; B64; B64D; B64D37/00; B64D37/02; B64D37/06; B64D37/10; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3115; Y10T137/3127; Y10T137/313
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
198 words
A pressurization system for supplying a constant source of pressure comprising: a pressurant chamber including an outlet therefrom, the chamber including means for receiving an external actuation signal, the chamber having means responsive to the external actuation signal and containing a liquid propellant charge, these means pressurizing the liquid propellant and causing the liquid propellant to flow out of the pressurant chamber, a reaction chamber downstream of the pressurant chamber containing means of decomposing the liquid propellant and producing a gasified product, a storage tank downstream of the reaction chamber for receiving the gasified products from the reaction chamber, a control valve positioned between the pressurant chamber and the reaction chamber, the control valve being in a closed position when the pressure level remains at a constant predetermined level, said control valve being a two-stage regulator, the first of said stages receiving an input pressure signal from the propellant leaving the pressurant chamber, the second of said stages receiving pressurized liquid propellant from the first stage for regulating the flow to the reaction chamber, said second stage having means to permit the liquid propellant to flow therefrom in response to a pressure signal received from the storage tank.
Claim 2
Dependent Claim
198 words
A pressurization system for supplying a constant source of pressure comprising: a pressurant chamber including an outlet therefrom, the chamber including means for receiving an external actuation signal, the chamber having means responsive to the external actuation signal and containing a liquid propellant charge, these means pressurizing the liquid propellant and causing the liquid propellant to flow out of the pressurant chamber, a reaction chamber downstream of the pressurant chamber containing means of decomposing the liquid propellant and producing a gasified product, a storage tank downstream of the reaction chamber for receiving the gasified products from the reaction chamber, a control valve positioned between the pressurant chamber and the reaction chamber, the control valve being in a closed position when the pressure level remains at a constant predetermined level, said control valve being a two-stage regulator, the first of said stages receiving an input pressure signal from the propellant leaving the pressurant chamber, the second of said stages receiving pressurized liquid propellant from the first stage for regulating the flow to the reaction chamber, said second stage having means to permit the liquid propellant to flow therefrom in response to a pressure signal received from the storage tank.
Claim 3
Dependent Claim
141 words
A pressurization system as in claim 1 wherein: the flow regulating device includes a valve spool, the valve spool having means for opening and closing its inlet and outlet, a first chamber downstream of the outlet, the chamber being in communication with the outlet means and one end of the valve spool, the pressure within this chamber being substantially regulated pressure from the first stage, a second chamber within which a piston means is positioned, the piston means being connected to the valve spool, a biasing means positioned on one side of the piston, the biasing means tending to exert an opening force on the piston and hence open the valve spool inlet, and the chamber side opposite thereto containing stop means and being in communication with the storage tank, the pressure therewithin exerting a closing force on the piston means.
Claim 4
Dependent Claim
88 words
A pressurization system as in claim 2 wherein: the valve spool is in a stable position at the extremes of its stroke only, the first chamber pressure force and biasing force being such as to cause the spool valve to move from one end of its stroke to another when the storage tank pressure decays, and the pressure within the second chamber being such as to cause the spool valve to travel to its other extreme stroke position when the storage tank pressure Increases to a predetermined level.
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) | 1975-06-06 | 1975-12-06 | 1976-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-06 | 1979-12-06 | 1980-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-06 | 1983-12-06 | 1984-06-06 | $7700.00 | Window Closed / Lapsed |