Patent US3739811A successfully refreshed from Google Patents.
US3739811A
Expired / Lapsed
US
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Four-way valve
Assignee: WBH INDUSTRIES Inc
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Filing: 1971-08-14
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Granted: 1973-06-19
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Expires: 1991-08-14
Abstract
Abstract A four-way valve is formed of an elongated channel which contains a stack of hollow valve cages. The cages have end portions which form spaced poppet valve seats for poppet valve disks which are carried on a common operating shaft.
Inventors
- 👤 F Gross
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:48
CPC Classifications
G; G01; G01F; G01F3/00; G01F3/02; G01F3/04; G01F3/14; F; F16; F16K; F16K11/00; G01F3/16; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86574; Y10T137/8667; Y10T137/86686
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
278 words
A four-way valve comprising, in combination: a valve body consisting of an elongated body having an elongated opening extending therethrough from one end of said body to the opposite end of said body, first and second spaced fluid passages extending through the wall of said body and communicating with the interior of said elongated opening, first and second port means communicating with the opposite ends of said elongated opening, and a third port means communicating with a region disposed between said first and second fluid passages; first conduit means for conducting fluid in a single direction, connected to said first and second port means; second conduit means for conducting fluid in a single direction, connected to said third port means; and first and second valve means positioned within said elongated opening; said first valve means disposed between the regions at which said first and third port means enter said elongated opening and being movable to selectively connect either one of said first and third port means to said first fluid passage; said second valve means disposed between the regions at which said second and third port means enter said elongated opening and being movable to selectively connect either one of said second and third port means to said second fluid passage; and operating means connected to said first and second valve means for operating said first and second valve means to define a continuous fluid flow between said first and second fluid passages; said operating means including a mechanism for cycling said first and second valve means between their respective valve positions at a rate dependent upon the volumetric flow of fluid in said first and second passages.
Claim 2
Dependent Claim
278 words
A four-way valve comprising, in combination: a valve body consisting of an elongated body having an elongated opening extending therethrough from one end of said body to the opposite end of said body, first and second spaced fluid passages extending through the wall of said body and communicating with the interior of said elongated opening, first and second port means communicating with the opposite ends of said elongated opening, and a third port means communicating with a region disposed between said first and second fluid passages; first conduit means for conducting fluid in a single direction, connected to said first and second port means; second conduit means for conducting fluid in a single direction, connected to said third port means; and first and second valve means positioned within said elongated opening; said first valve means disposed between the regions at which said first and third port means enter said elongated opening and being movable to selectively connect either one of said first and third port means to said first fluid passage; said second valve means disposed between the regions at which said second and third port means enter said elongated opening and being movable to selectively connect either one of said second and third port means to said second fluid passage; and operating means connected to said first and second valve means for operating said first and second valve means to define a continuous fluid flow between said first and second fluid passages; said operating means including a mechanism for cycling said first and second valve means between their respective valve positions at a rate dependent upon the volumetric flow of fluid in said first and second passages.
Claim 3
Dependent Claim
25 words
The four-way valve of claim 1 wherein said first and second valve means each comprise poppet-type valves which are longitudinally movable within said elongated opening.
Claim 4
Dependent Claim
212 words
In combination, the four-way valve of claim 1 and a piston chamber divided into two sections by a shiftable piston therein; first piston conduit means connecting one said piston chamber section to said elongated opening in the region of said first port means at a location such that movement of said first valve means moves it past said first piston conduit means and selectively connects and disconnects said first conduit means with said first piston conduit means and said first piston chamber section while it respectively disconnects and connects said first piston conduit means and said third port means; second piston conduit means connecting the other said piston chamber section to said elongated opening in the region of said second port means at a location such that movement of said second valve means moves it past said second piston conduit means and selectively connects and disconnects said first conduit means with said second piston conduit means and said other piston chamber section while it respectively disconnects and connects said second piston conduit means and said third port means; said first and said second valve means being joined to operate together so that only one of said first and second piston conduit means at a time is connected with said third port means.
Claim 5
Dependent Claim
34 words
The four-way valve of claim 1, in which said first and second valve means are mechanically connected to one another and move in unison with one another responsive to operation of said operating means.
Claim 6
Dependent Claim
49 words
The four-way valve of claim 4, wherein said first and second valve means are mechanically connected by a shiftable moving device; said operating means comprising a solenoid device communicating with said moving device such that operation of said solenoid device shifts said moving device, thereby to shift said valves.
Claim 7
Dependent Claim
130 words
The four-way valve of claim 4, wherein said operating device is shiftable due to fluid pressure; said operating device having a first operative surface located in a first channel and a second operative surface located in a second channel; first and second fluid pressure port means so connected with said first and second operating device channels, respectively, and said first and said second operative surfaces being so located and oriented that application of fluid pressure to said first port means moves said operating device in one direction and application of fluid pressure to said second port means moves said operating device in the opposite direction, whereby shifting of said operating device and of said valve discs is accomplished through alternating application of fluid pressure to said first and second channels.
Claim 8
Dependent Claim
68 words
The four-way valve of claim 6, further including a solenoid operated device having a first and a second mode; said solenoid device being connected with a fluid pressure source on the one hand and being connected with said first port means when in said first mode and with said second port means when in said second mode, whereby said solenoid device controls the shifting of said valve discs.
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) | 1976-06-18 | 1976-12-18 | 1977-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-18 | 1980-12-18 | 1981-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-18 | 1984-12-18 | 1985-06-19 | $7700.00 | Window Closed / Lapsed |