US3561477A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reducing valve assembly
Assignee: Individual
•
Filing: 1968-10-11
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Granted: 1971-02-09
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Expires: 1988-10-11
Abstract
Abstract The invention is concerned with an improved on-off valve and reducing valve unit for use, for example, in underwater diving equipment, and which is interposed between the air hose from the face mask and the high-pressure air cylinder which is carried by the diver. The unit includes a manually controllable on-off valve, and an internal regulator which causes air at a predetermined regulated reduced pressure to be produced at the outlet of the unit and through the air hose to the face mask in response to the high-pressure air from the interior of the air cylinder.
Inventors
- 👤 Olympio F Pinto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:38
CPC Classifications
B; B63; B63C; B63C11/00; B63C11/02; B63C11/18; B63C11/22; B63C11/2209; Y; Y10; Y10S; Y10S137/00; Y10S137/908; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/7793; Y10T137/7808; Y10T137/7837; Y10T137/7876; Y10T137/7877; Y10T137/8593; Y10T137/87917; Y10T137/88046; Y10T137/8807
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
237 words
A reducing valve assembly to be mounted on the neck of a cylinder for supplying high-pressure fluid from said cylinder to a remote point at a regulated reduced pressure, said assembly including: an integral body portion adapted to be mounted on said cylinder and to extend into the neck thereof, said body portion having internal passages therein through which fluid from said cylinder flows from an inlet port in the bottom of said body portion to an outlet port at the top of said body portion; a manually controlled on-off valve mounted on the side of said body portion and coupled to said internal passages selectively to open a path from said inlet port to said outlet port and selectively to close said path; pressure regulator means mounted in the upper end of said body portion and extending through said outlet port into one of the aforesaid passages for regulating the pressure of the fluid from the valve assembly so as to reduce the pressure thereof to a predetermined regulated value; spring-loaded valve means mounted in the side of said body portion opposite to said on-off valve and coupled to said internal passages to interrupt the flow of fluid from said inlet port to said outlet port when the pressure in the cylinder falls below a predetermined threshold; and manually operated means coupled to said springloaded valve for selectively releasing the spring pressure on said spring-loaded valve.
Claim 2
Dependent Claim
237 words
A reducing valve assembly to be mounted on the neck of a cylinder for supplying high-pressure fluid from said cylinder to a remote point at a regulated reduced pressure, said assembly including: an integral body portion adapted to be mounted on said cylinder and to extend into the neck thereof, said body portion having internal passages therein through which fluid from said cylinder flows from an inlet port in the bottom of said body portion to an outlet port at the top of said body portion; a manually controlled on-off valve mounted on the side of said body portion and coupled to said internal passages selectively to open a path from said inlet port to said outlet port and selectively to close said path; pressure regulator means mounted in the upper end of said body portion and extending through said outlet port into one of the aforesaid passages for regulating the pressure of the fluid from the valve assembly so as to reduce the pressure thereof to a predetermined regulated value; spring-loaded valve means mounted in the side of said body portion opposite to said on-off valve and coupled to said internal passages to interrupt the flow of fluid from said inlet port to said outlet port when the pressure in the cylinder falls below a predetermined threshold; and manually operated means coupled to said springloaded valve for selectively releasing the spring pressure on said spring-loaded valve.
Claim 3
Dependent Claim
62 words
The assembly defined in claim 1 in which said pressure regulator means includes a cylindrical member mounted on said body portion and surrounding said outlet port and a hollow piston member slidably mounted in said cylindrical member and extending down through said outlet port into said last-named passage, and an air hose coupling mounted on the upper end of said cylindrical member.
Claim 4
Dependent Claim
33 words
The assembly defined in claim 2 in which said cylinder has an opening therein to permit water to flow into the lower portion of said cylinder between said piston and said body portion.
Claim 5
Dependent Claim
59 words
The assembly defined in claim 1 in which said body portion has a port therein for receiving an air hose, said last-named port being coupled to said passages in said body portion at a point between said on-off valve and said outlet port to introduce compressed air into the cylinder through said on-off valve and through said spring-loaded valve.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-08 | 1974-08-10 | 1975-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-08 | 1978-08-10 | 1979-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-08 | 1982-08-10 | 1983-02-09 | $7700.00 | Window Closed / Lapsed |