Patent US3575205A successfully refreshed from Google Patents.
US3575205A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure regulator construction
Assignee: Robertshaw Controls Co
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Filing: 1969-01-02
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Granted: 1971-04-20
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Expires: 1989-01-02
Abstract
Abstract This disclosure relates to a self-contained pressure regulator that can be readily disposed in a housing means against a surface thereof having an inlet and an outlet respectively disposed in fluid communication with an inlet means and an outlet means of a pressure regulator, the pressure regulator comprising a cupshaped casing having its closed end provided with its inlet means and outlet means and having its opened end turned over to secure a flexible diaphragm thereto that cooperates with the casing to define a chamber that is in fluid communication with the inlet means and outlet means thereof while carrying a valve member that controls the inlet means thereof.
Inventors
- 👤 Michael John Caparone
- 👤 Theodore John Dykzeul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:46
CPC Classifications
G; G05; G05D; G05D16/00; G05D16/04; G05D16/0402; Y; Y10; Y10T; Y10T137/00; Y10T137/7504; Y10T137/7668; Y10T137/7722; Y10T137/7781; Y10T137/7793; Y10T137/7822; Y10T137/7823; Y10T137/7825
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
91 words
A pressure regulator comprising a casing carrying a flexible diaphragm that separates said casing into two chambers, said casing having an inlet and an outlet in communication with one of said chambers, a valve member carried by said diaphragm and controlling said inlet in accordance with the position of said diaphragm, and a spring disposed in the other chamber between said casing and said diaphragm to tend to open said valve member, said casing being permanently deformable to selectively vary the force of said spring tending to open said valve member.
Claim 2
Dependent Claim
91 words
A pressure regulator comprising a casing carrying a flexible diaphragm that separates said casing into two chambers, said casing having an inlet and an outlet in communication with one of said chambers, a valve member carried by said diaphragm and controlling said inlet in accordance with the position of said diaphragm, and a spring disposed in the other chamber between said casing and said diaphragm to tend to open said valve member, said casing being permanently deformable to selectively vary the force of said spring tending to open said valve member.
Claim 3
Dependent Claim
33 words
A pressure regulator as set forth in claim 1 wherein said casing has an outwardly extending portion carrying said inlet and said outlet comprises a plurality of apertures circumferentially arranged about said inlet.
Claim 4
Dependent Claim
28 words
A pressure regulator as set forth in claim 1 wherein said casing has an annular groove receiving one end of said spring to hold said spring in place.
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) | 1974-04-19 | 1974-10-19 | 1975-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-19 | 1978-10-19 | 1979-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-19 | 1982-10-19 | 1983-04-20 | $7700.00 | Window Closed / Lapsed |