Patent US3556125A successfully refreshed from Google Patents.
US3556125A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure regulating valves
Assignee: Telektron Ltd
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Filing: 1969-03-21
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Granted: 1971-01-19
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Expires: 1989-03-21
Abstract
Abstract The invention provides a pressure-regulating valve which is usable, for example to obtain a controlled reduction in fluid pressure or as a position transmitter. The valve of the invention comprises a first chamber 21 and a second chamber 20 separated by a flexible diaphragm 14. The periphery of the diaphragm can separate from ledge 26 and a dished member 15 so as to allow loss of air or other gas from either of the chambers. The member 15 is biased against the diaphragm 14 by a spring (bias member 2,) which can be varied in compression. A moving valve member 7 is attached to the diaphragm and seats on member 5. A duct 8 in the valve member 7 provides fluid connection between the inlet port 23 and the first chamber 20. When member 7 lifts from seat member 5 fluid passes from the inlet to outlet port 22 via chamber 21.
Inventors
- 👤 Dennis Stephen Dowdall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:00
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/12; F16K31/36; F16K31/365; G; G05; G05D; G05D16/00; G05D16/04; G05D16/06; G05D16/063; G05D16/0644; G05D16/0655; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2559; Y10T137/2574; Y10T137/2605; Y10T137/2607; Y10T137/261; Y10T137/2617
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
72 words
A fluid pressure-regulating valve comprising in combination: a. a first chamber; b. a second chamber; c. a diaphragm separating said chambers, the periphery of said diaphragm being movable to allow release of fluid from said chambers; d. an inlet port; e. a movable valve member, positioned between said inlet port and said first chamber, and connected to said diaphragm; and f. a fluid connection between said inlet port and said second chamber.
Claim 2
Dependent Claim
72 words
A fluid pressure-regulating valve comprising in combination: a. a first chamber; b. a second chamber; c. a diaphragm separating said chambers, the periphery of said diaphragm being movable to allow release of fluid from said chambers; d. an inlet port; e. a movable valve member, positioned between said inlet port and said first chamber, and connected to said diaphragm; and f. a fluid connection between said inlet port and said second chamber.
Claim 3
Dependent Claim
66 words
A regulating valve according to claim 1 wherein a member extends over the diaphragm and separably contacts same at or near its periphery to form said second chamber and including a biasing member acting on said member and including a biasing member acting on said member to bias same onto said diaphragm, the member being movable from said diaphragm to release fluid from said second chamber.
Claim 4
Dependent Claim
32 words
A regulating valve according to claim 2, wherein the biasing member is variable to allow movement of the biased member from the diaphragm at a particular fluid pressure in the second chamber.
Claim 5
Dependent Claim
28 words
A regulating valve according to claim 1 wherein a duct extending through the movable valve member forms the fluid connection between the inlet port and the second chamber.
Claim 6
Dependent Claim
19 words
A regulating valve according to claim 1 including an annular valve seat through which the movable valve member extends.
Claim 7
Dependent Claim
28 words
A regulating valve according to claim 1 wherein the diaphragm is separable at its periphery from an annular seat to allow release of fluid from the first chamber.
Claim 8
Dependent Claim
22 words
A regulating valve according to claim 3 including a helical spring as the biasing member, the compression in which can be varied.
Claim 9
Dependent Claim
23 words
A regulating valve according to claim 3 including a cantilevered spring as the biasing member to which a variable force can be applied.
References Cited (Backward Citations)
US2826213A
Cited
US2940462A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-18 | 1974-07-20 | 1975-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-18 | 1978-07-20 | 1979-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-18 | 1982-07-20 | 1983-01-19 | $7700.00 | Window Closed / Lapsed |