US3722851A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Timing valves
Assignee: BROWN H CO
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Filing: 1971-07-09
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Granted: 1973-03-27
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Expires: 1991-07-09
Abstract
Abstract This invention relates to timing valves for controlling the pressure fluid between a supply line and a utilization line servicing one or more pressure utilization devices with pressure signals of adjustable duration and frequency. The operation of a pair of complementary timing valves in connection with a controller is synchronized by the pressure signals applied to the utilization line. One timing valve begins its predetermined delay period on the application of the pressure signal, while the other timing valve begins its delay period on the termination of the pressure signal. Each timing valve includes a time-calibrated variable orifice forming part of a timing chamber which includes fluid which is placed under pressure by a flexible diaphragm. A master control valve coupling the supply line to the utilization line can be controlled by the timing valves and the successive displacements of the diaphragms.
Inventors
- 👤 A Love
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:32
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/12; F16K31/36; F16K31/365; F15; F15B; F15B21/00; F15B21/12; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86389; Y10T137/86405; Y10T137/86413
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
133 words
A timing valve comprising in combination: a housing defining a timing chamber, a recycling chamber, and a flexible diaphragm separating said timing chamber from said recycling chamber; a timing spring exerting a force against said diaphragm to compress the fluid in said timing chamber; a time-adjustable orifice providing an outlet for the fluid from said timing chamber to said recycling chamber; a control rod fixedly attached to and movable in unison with said diaphragm; a pilot valve including a valve element for controlling the fluid flow through said pilot valve; actuating means, including a fluid actuatable member responsive to fluid pressure, said member being detached from said timing spring and being coupled between said rod and said pilot valve element to control said pilot valve in dependence upon the setting of said orifice.
Claim 2
Dependent Claim
133 words
A timing valve comprising in combination: a housing defining a timing chamber, a recycling chamber, and a flexible diaphragm separating said timing chamber from said recycling chamber; a timing spring exerting a force against said diaphragm to compress the fluid in said timing chamber; a time-adjustable orifice providing an outlet for the fluid from said timing chamber to said recycling chamber; a control rod fixedly attached to and movable in unison with said diaphragm; a pilot valve including a valve element for controlling the fluid flow through said pilot valve; actuating means, including a fluid actuatable member responsive to fluid pressure, said member being detached from said timing spring and being coupled between said rod and said pilot valve element to control said pilot valve in dependence upon the setting of said orifice.
Claim 3
Dependent Claim
189 words
A timing valve comprising in combination: a housing defining a timing chamber, a recycling chamber, a partition wall having an upper face and a lower face, and a flexible diaphragm separating said timing chamber from said recycling chamber; a distinct timing spring between said upper face and said diaphragm, said spring when unrestrained urging said diaphragm away from said upper face to compress the fluid in said timing chamber; a time-adjustable orifice providing an outlet for the fluid from said timing chamber to said recycling chamber; a control rod fixedly attached to and movable in unison with said diaphragm; fluid actuatable means including a cylinder, a piston slidably mounted in said cylinder and being detached from said timing spring, and means applying pressure fluid to said piston to cause the piston to move in response thereto; a pilot valve including a valve element for controlling the fluid flow through said pilot valve; and an actuation mechanism coupled to said pilot valve element and to said control rod and being responsive to said fluid actuatable means to control said pilot valve element in dependence upon the setting of said orifice.
Claim 4
Dependent Claim
189 words
A timing valve comprising in combination: a housing defining a timing chamber, a recycling chamber, a partition wall having an upper face and a lower face, and a flexible diaphragm separating said timing chamber from said recycling chamber; a distinct timing spring between said upper face and said diaphragm, said spring when unrestrained urging said diaphragm away from said upper face to compress the fluid in said timing chamber; a time-adjustable orifice providing an outlet for the fluid from said timing chamber to said recycling chamber; a control rod fixedly attached to and movable in unison with said diaphragm; fluid actuatable means including a cylinder, a piston slidably mounted in said cylinder and being detached from said timing spring, and means applying pressure fluid to said piston to cause the piston to move in response thereto; a pilot valve including a valve element for controlling the fluid flow through said pilot valve; and an actuation mechanism coupled to said pilot valve element and to said control rod and being responsive to said fluid actuatable means to control said pilot valve element in dependence upon the setting of said orifice.
Claim 5
Dependent Claim
45 words
The timing valve of claim 2 and further including: a distinct piston-bias spring coupled to said piston to normally urge said piston to one position; and said applied pressure fluid urging said piston to another position against the force exerted by said piston bias spring.
Claim 6
Dependent Claim
219 words
A timing valve comprising in combination: a housing defining a timing chamber, a recycling chamber, a partition wall having an upper face and a lower face, and a flexible diaphragm separating said timing chamber from said recycling chamber; a timing spring between said upper face and said diaphragm, said spring when unrestrained urging said diaphragm away from said upper face to compress the fluid in said timing chamber; a time-adjustable orifice providing an outlet for the fluid from said timing chamber to said recycling chamber; a control rod attached to and movable with said diaphragm; fluid actuatable means including a cylinder, a piston slidably mounted in said cylinder, said piston defining a center bore, said control rod being freely movable in said bore, and means applying pressure fluid to said piston; a pilot valve including a valve element for controlling the fluid flow through said pilot valve; an actuation mechanism coupled to said pilot vaLve element and to said control rod and being responsive to said fluid actuatable means to control said pilot valve element in dependence upon the setting of said orifice; a piston bias spring coupled to said piston to normally urge said piston to one position; and said applied pressure fluid urging said piston to another position against the force exerted by said piston bias spring.
Claim 7
Dependent Claim
219 words
A timing valve comprising in combination: a housing defining a timing chamber, a recycling chamber, a partition wall having an upper face and a lower face, and a flexible diaphragm separating said timing chamber from said recycling chamber; a timing spring between said upper face and said diaphragm, said spring when unrestrained urging said diaphragm away from said upper face to compress the fluid in said timing chamber; a time-adjustable orifice providing an outlet for the fluid from said timing chamber to said recycling chamber; a control rod attached to and movable with said diaphragm; fluid actuatable means including a cylinder, a piston slidably mounted in said cylinder, said piston defining a center bore, said control rod being freely movable in said bore, and means applying pressure fluid to said piston; a pilot valve including a valve element for controlling the fluid flow through said pilot valve; an actuation mechanism coupled to said pilot vaLve element and to said control rod and being responsive to said fluid actuatable means to control said pilot valve element in dependence upon the setting of said orifice; a piston bias spring coupled to said piston to normally urge said piston to one position; and said applied pressure fluid urging said piston to another position against the force exerted by said piston bias spring.
Claim 8
Dependent Claim
13 words
The timing valve of claim 4 wherein said piston is a double-diameter piston.
Claim 9
Dependent Claim
14 words
The timing valve of claim 4 wherein said pilot valve is a 3-way valve.
Claim 10
Dependent Claim
25 words
The timing valve of claim 1 wherein, said pilot valve element is controlled in dependence upon said fluid pressure and the movement of said rod.
Claim 11
Dependent Claim
141 words
A timing valve comprising in combination: a housing defining a timing chamber, a recycling chamber, and a flexible diaphragm separating said timing chamber from said recycling chamber, a timing spring exerting a force against said diaphragm to compress the fluid in said timing chamber; a time-adjustable orifice providing an outlet for the fluid from said timing chamber to said recycling chamber; a control rod attached to and movable with said diaphragm; a pilot valve including a valve element for controlling the fluid flow through said pilot valve, and fluid actuating means including: a cylinder, a piston slidably mounted in said cylinder and being detached from said timing spring, means for selectively applying fluid pressure to said piston to cause the piston to move in response thereto, and means for mechanically transferring the movement of said piston to said pilot valve element.
Claim 12
Dependent Claim
141 words
A timing valve comprising in combination: a housing defining a timing chamber, a recycling chamber, and a flexible diaphragm separating said timing chamber from said recycling chamber, a timing spring exerting a force against said diaphragm to compress the fluid in said timing chamber; a time-adjustable orifice providing an outlet for the fluid from said timing chamber to said recycling chamber; a control rod attached to and movable with said diaphragm; a pilot valve including a valve element for controlling the fluid flow through said pilot valve, and fluid actuating means including: a cylinder, a piston slidably mounted in said cylinder and being detached from said timing spring, means for selectively applying fluid pressure to said piston to cause the piston to move in response thereto, and means for mechanically transferring the movement of said piston to said pilot valve element.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-03-26 | 1976-09-25 | 1977-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-26 | 1980-09-25 | 1981-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-26 | 1984-09-25 | 1985-03-27 | $7700.00 | Window Closed / Lapsed |