US3747637A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure-operated multiport fluid control valve
Assignee: Western Atlas International Inc
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Filing: 1971-09-27
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Granted: 1973-07-24
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Expires: 1991-09-27
Abstract
Abstract A pressure-operated, multiple-unit, diaphragm-valve is disclosed. Application or release of pilot-pressure to the valve actuates all of several diaphragm elements simultaneously thereby providing substantially instantaneous shutoff of fluid flow through a plurality of pipe lines. Other important features of the valve are its structural simplicity, speed of operation, and its modular construction.
Inventors
- 👤 J Mollere
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:47
CPC Classifications
F; F16; F16K; F16K7/00; F16K7/12; F16K7/14; F16K7/17; F16K11/00; Y; Y10; Y10T; Y10T137/00; Y10T137/5109; Y10T137/5283; Y10T137/8593; Y10T137/87153
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
158 words
A pressure-actuated, modular, multiport valve for simultaneous control of passage of fluids through a plurality of flow lines including: a plurality of valve modules, having first and second end-faces, aligned in series relationship, each of said first end faces defining an orifice having a seat, said orifice being in fluid communication with an inlet port and an outlet port, and each of said second faces defining a control chamber; a plurality of flexible diaphragm means positioned between each module forming a flexible wall between the orifice of a one of said valve modules and the control chamber of another of said valve modules; manifold means interconnecting the control chambers of said plurality of valve modules; and means responsive to a control signal to admit fluid under pressure into the control chambers of said valve modules through said manifold means thereby urging said flexible diaphragms against said orifice seats to interrupt fluid communication between said inlet and outlet ports.
Claim 2
Dependent Claim
158 words
A pressure-actuated, modular, multiport valve for simultaneous control of passage of fluids through a plurality of flow lines including: a plurality of valve modules, having first and second end-faces, aligned in series relationship, each of said first end faces defining an orifice having a seat, said orifice being in fluid communication with an inlet port and an outlet port, and each of said second faces defining a control chamber; a plurality of flexible diaphragm means positioned between each module forming a flexible wall between the orifice of a one of said valve modules and the control chamber of another of said valve modules; manifold means interconnecting the control chambers of said plurality of valve modules; and means responsive to a control signal to admit fluid under pressure into the control chambers of said valve modules through said manifold means thereby urging said flexible diaphragms against said orifice seats to interrupt fluid communication between said inlet and outlet ports.
Claim 3
Dependent Claim
26 words
The multiport valve of claim 1 wherein, said orifices have preselected diameters to meter the volume of flow of fluids through each of said flow lines.
Claim 4
Dependent Claim
37 words
The multiport valve of claim 2 wherein, the area of the one side of said diaphragms exposed to said control chambers is greater than the area of the other side of said diaphragms exposed to said orifices.
Claim 5
Dependent Claim
149 words
A modular valve for simultaneously controlling the passage of fluids through two distinct flow lines, said modular valve including: two adjacently-positioned valve modules, each module having an inlet, and outlet, a first end face, and a second end face, each first end face defines a sealable fluid passageway between an inlet port and an outlet port; each second end face defines a control chamber; each module defines a pilot-pressure manifold in communication with each control chamber; a flexible diaphragm for each valve module, each diaphragm having one side facing a control chamber and the other side facing a sealable passageway; a source of pressurized fluid; and means responsive to a control signal to alternately pressurizing and exhausting said pilot-pressure manifold thereby to alternately press each diaphragm against its adjacent passageway and to disengage each diaphragm from its passageway, thereby to control fluid communication between said inlet and outlet ports.
Claim 6
Dependent Claim
149 words
A modular valve for simultaneously controlling the passage of fluids through two distinct flow lines, said modular valve including: two adjacently-positioned valve modules, each module having an inlet, and outlet, a first end face, and a second end face, each first end face defines a sealable fluid passageway between an inlet port and an outlet port; each second end face defines a control chamber; each module defines a pilot-pressure manifold in communication with each control chamber; a flexible diaphragm for each valve module, each diaphragm having one side facing a control chamber and the other side facing a sealable passageway; a source of pressurized fluid; and means responsive to a control signal to alternately pressurizing and exhausting said pilot-pressure manifold thereby to alternately press each diaphragm against its adjacent passageway and to disengage each diaphragm from its passageway, thereby to control fluid communication between said inlet and outlet ports.
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) | 1976-07-23 | 1977-01-22 | 1977-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-23 | 1981-01-22 | 1981-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-23 | 1985-01-22 | 1985-07-24 | $7700.00 | Window Closed / Lapsed |