Patent US2238745A successfully refreshed from Google Patents.
Patent US3743237A successfully refreshed from Google Patents.
US3743237A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Iaphragm actuated valve
Assignee: Individual
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Filing: 1971-12-30
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Granted: 1973-07-03
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Expires: 1991-12-30
Abstract
Abstract A valve on a valve seat so located that the valve under pressure bears on the valve to keep it on the valve seat; the space above the valve has a solid divider and a dome forming an air chamber above the divider; the space in the dome being separated by a diaphragm which is connected to the valve by a valve stem slideable through the middle of the divider; a passage through the divider conducts air under pressure between the divider and the diaphragm to fill the chamber under the diaphragm and lift the diaphragm thereby to open the valve; the same passage functions as a vent when the valve is closed with the assistance of a spring in the dome above the diaphragm; the air in the hose connected to the passage in the divider is controlled to alternately admit air under pressure or to vent the air from the space between the diaphragm and the divider.
Inventors
- 👤 E Kiser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:32
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/12; F16K31/126; F16K31/1262
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
293 words
In a diaphragm actuated valve, a valve body having an intake and a discharge end, and a separator wall between the intake and the discharge end forming a valve seat, an annular flange extended from the walls of said intake and discharge end spaced from the circumference of said valve seat so as to form a pressure chamber above the valve seat in communication with said intake end, an enlarged outwardly extended head flange on the end of said annular flange, a solid divider element on said head flange covering said pressure chamber, a diaphragm spaced above said divider element to form an air chamber between said divider element and said diaphragm, the outer circumference of said diaphragm resting on the outer circumference of said divider element, a dome above said diaphragm having an annular flange overlying the outer peripheral portion of said diaphragm, and having an open air vent, peripheral means to clamp said flange of said dome, the outer peripheral portion of said diaphragm and said divider element together onto said head flange, a valve on said valve seat, a valve stem connecting said valve to said diaphragm and being reciprocable through said divider element, valve means to transmit air under pressure into said air chamber for raising said diaphragm and said valve away from said valve seat, the outer periphery of said divider element having a metering passage extended from said air chamber outwardly, coupling means on the outside of said divider element at the outer end of said metering passage for coupling said valve means to said metering passage, said valve means when closed connecting said metering passage to the atmosphere thereby to control the rate of closing movement of said diaphragm and said valve to said valve seat.
Claim 2
Dependent Claim
293 words
In a diaphragm actuated valve, a valve body having an intake and a discharge end, and a separator wall between the intake and the discharge end forming a valve seat, an annular flange extended from the walls of said intake and discharge end spaced from the circumference of said valve seat so as to form a pressure chamber above the valve seat in communication with said intake end, an enlarged outwardly extended head flange on the end of said annular flange, a solid divider element on said head flange covering said pressure chamber, a diaphragm spaced above said divider element to form an air chamber between said divider element and said diaphragm, the outer circumference of said diaphragm resting on the outer circumference of said divider element, a dome above said diaphragm having an annular flange overlying the outer peripheral portion of said diaphragm, and having an open air vent, peripheral means to clamp said flange of said dome, the outer peripheral portion of said diaphragm and said divider element together onto said head flange, a valve on said valve seat, a valve stem connecting said valve to said diaphragm and being reciprocable through said divider element, valve means to transmit air under pressure into said air chamber for raising said diaphragm and said valve away from said valve seat, the outer periphery of said divider element having a metering passage extended from said air chamber outwardly, coupling means on the outside of said divider element at the outer end of said metering passage for coupling said valve means to said metering passage, said valve means when closed connecting said metering passage to the atmosphere thereby to control the rate of closing movement of said diaphragm and said valve to said valve seat.
Claim 3
Dependent Claim
43 words
The diaphragm actuated valve specified in claim 1, and resilient means in said dome element to urge said diaphragm toward said valve seat, the middle portion of said diaphragm being reinforced to transmit the force of said resilient means to said valve stem.
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) | 1976-07-02 | 1977-01-01 | 1977-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-02 | 1981-01-01 | 1981-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-02 | 1985-01-01 | 1985-07-03 | $7700.00 | Window Closed / Lapsed |