US4227674A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid metering valve
Assignee: Individual
•
Filing: 1977-06-30
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Granted: 1980-10-14
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Expires: 1997-06-30
Abstract
Abstract A liquid metering flush valve to be installed in connection with plumbing fixtures such as water closets, urinals, service sinks, and other equipment and to supply said fixtures with a predetermined amount of water; which may be potable water, contaminated water, sea water, corrosive and/or unfiltered water, and water and/or oil combinations; at controlled pressures, flow rates and volumes. The basic valve design is on the hydraulic principal of proportional flow through orifices, regardless of pressure fluctuation but employs the use of four chambers, two of which are sealed and contain not only an orifice therebetween but a filtered, non-corrosive captive liquid to assure the orifice of protection from corrosive action and dirt which may damage the orifice or clog it and prevent it from working properly. One basic body design for either exposed or concealed valve installation simplify stocking and production requirements and costs and promote water economy through an adjustable feature which permits use of a minimum amount of water volume. The flexibility of selection of a Diaphragm model, Bellows model, or a Piston model best utilizes modern materials for maximum service when handling liquids other than clean, grit free, non-corrosive, potable water.
Inventors
- 👤 Walter H. Grant, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:20
CPC Classifications
F; F16; F16K; F16K21/00; F16K21/04; F16K21/16
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
259 words
A liquid metering flush valve for controlling and supplying liquid to a plumbing fixture comprising: control means for regulating supply liquid flow through the valve from an inlet to an outlet, the control means including two movable sealed valve chambers containing captive fluid separate from supply liquid passing through said valve, the two sealed valve chambers being separated by a rigid plate which contains an orifice and check valve, said two chambers having the captive fluid therein to pass through the orifice and check valve to regulate the actuation of the valve, the control means including third and fourth chambers communicating with the inlet and positioned on opposite sides of said two sealed chambers, valve operator means and valve actuating means responsive to operator means actuation for effecting operation of said control means to control the flow of the supply liquid from the third chamber to the outlet whereby fluid in the fourth chamber pushes the two movable chambers toward the third chamber, means for mounting the valve operator means remote from the control means, first and second lengths of tubing and means to connect the first and second lengths respectively to the third chamber and to the outlet, and means on the two movable valve chambers for preventing flow from the third chamber to the outlet upon movement of the two sealed chambers in a maximum direction toward the third chamber, the last mentioned means including non-hold open means for continuing to prevent flow from the third chamber as the two sealed chambers move toward the fourth chamber.
Claim 2
Dependent Claim
259 words
A liquid metering flush valve for controlling and supplying liquid to a plumbing fixture comprising: control means for regulating supply liquid flow through the valve from an inlet to an outlet, the control means including two movable sealed valve chambers containing captive fluid separate from supply liquid passing through said valve, the two sealed valve chambers being separated by a rigid plate which contains an orifice and check valve, said two chambers having the captive fluid therein to pass through the orifice and check valve to regulate the actuation of the valve, the control means including third and fourth chambers communicating with the inlet and positioned on opposite sides of said two sealed chambers, valve operator means and valve actuating means responsive to operator means actuation for effecting operation of said control means to control the flow of the supply liquid from the third chamber to the outlet whereby fluid in the fourth chamber pushes the two movable chambers toward the third chamber, means for mounting the valve operator means remote from the control means, first and second lengths of tubing and means to connect the first and second lengths respectively to the third chamber and to the outlet, and means on the two movable valve chambers for preventing flow from the third chamber to the outlet upon movement of the two sealed chambers in a maximum direction toward the third chamber, the last mentioned means including non-hold open means for continuing to prevent flow from the third chamber as the two sealed chambers move toward the fourth chamber.
Claim 3
Dependent Claim
52 words
The structure as set forth in claim 1, wherein the said captive fluid in the sealed chambers is a non-corrosive, clean, contaminant free liquid so that the check valve and orifice may be protected from stoppage or damage by particles or contaminants in liquid flowing through and being controlled by the valve.
Claim 4
Dependent Claim
39 words
The structure as set forth in claim 1, wherein said valve actuating means includes a control button responsive means to initiate action of the flush valve and permit a predetermined volume of fluid to pass therethrough prior to deactivation.
Claim 5
Dependent Claim
30 words
The structure as set forth in claim 3, also including the feature of valve actuating means position being uneffected by the position of the liquid inlet to the flush valve.
Claim 6
Dependent Claim
25 words
The structure as set forth in claim 4 further including the feature of the valve actuating means position being independent of a concealed valve position.
Claim 7
Dependent Claim
35 words
The structure as set forth in claim 1, including means to allow flexiblity in construction so as to best utilize modern materials for maximum service when handling liquids other than clean, grit free, non-corrosive water.
Claim 8
Dependent Claim
24 words
The structure as set forth in claim 6, also including the use of one basic body design for both exposed and concealed valve installation.
Claim 9
Dependent Claim
30 words
The structure as set forth in claim 7, further including means for reducing problems with installation of concealed valves, flexible, roughing-in dimensions and easy field correction for varying wall thicknesses.
Claim 10
Dependent Claim
34 words
The structure as set forth in claim 8, wherein the means for reducing permits the production of minimum parts and models as required to serve industry needs thereby reducing machinery requirements and therefore costs.
Claim 11
Dependent Claim
21 words
The structure as set forth in claim 9, wherein said means for reducing also simplifies stocking requirements for manufacturers and distributors.
Claim 12
Dependent Claim
218 words
A liquid metering flush valve for controlling and supplying liquid to a plumbing fixture comprising: a housing for connection between an inlet source of supply liquid and an outlet plumbing fixture; a poppet within said housing and associated therewith to selectively permit said supply liquid to flow through said housing; means for actuating said poppet; and control means including two movable sealed chambers containing a captive fluid completely separate from the supply liquid, valve operator means and valve actuating means responsive to operator means actuation for effecting operation of said control means to control the flow of the supply liquid from the third chamber to the outlet whereby fluid in the fourth chamber pushes the two movable chambers toward the third chamber, means for mounting the valve operator means remote from the control means, first and second lengths of tubing and means to connect the first and second lengths respectively to the third chamber and to the outlet, and means on the two movable valve chambers for preventing flow from the third chamber to the outlet upon movement of the two sealed chambers in a maximum direction toward the third chamber, the last mentioned means including non-hold open means for continuing to prevent flow from the third chamber as the two sealed chambers move toward the fourth chamber.
Claim 13
Dependent Claim
218 words
A liquid metering flush valve for controlling and supplying liquid to a plumbing fixture comprising: a housing for connection between an inlet source of supply liquid and an outlet plumbing fixture; a poppet within said housing and associated therewith to selectively permit said supply liquid to flow through said housing; means for actuating said poppet; and control means including two movable sealed chambers containing a captive fluid completely separate from the supply liquid, valve operator means and valve actuating means responsive to operator means actuation for effecting operation of said control means to control the flow of the supply liquid from the third chamber to the outlet whereby fluid in the fourth chamber pushes the two movable chambers toward the third chamber, means for mounting the valve operator means remote from the control means, first and second lengths of tubing and means to connect the first and second lengths respectively to the third chamber and to the outlet, and means on the two movable valve chambers for preventing flow from the third chamber to the outlet upon movement of the two sealed chambers in a maximum direction toward the third chamber, the last mentioned means including non-hold open means for continuing to prevent flow from the third chamber as the two sealed chambers move toward the fourth chamber.
Claim 14
Dependent Claim
27 words
The structure as set forth in claim 11, wherein additional means includes an inlet stop design which assures a spring loading of poppet unaffected by stop adjustment.
Claim 15
Dependent Claim
29 words
The structure as set forth in claim 11, further including an adjustable means which permits and encourages water economy through use of a minimum required volume of liquid flow.
Claim 16
Dependent Claim
35 words
The structure as set forth in claim 11, wherein the device includes additional means to render it usable with many different types of plumbing fixtures which may require a pre-determined volume of liquid flow thereto.
Claim 17
Dependent Claim
31 words
The liquid metering flush valve of claim 11, wherein said control means includes at least one flexible diaphragm defining at least a portion of a sealed chamber for the captive fluid.
Claim 18
Dependent Claim
30 words
The liquid metering flush valve of claim 11, wherein said control means includes at least one bellows defining at least a portion of a sealed chamber for said captive fluid.
Claim 19
Dependent Claim
30 words
The liquid metering flush valve of claim 11, wherein said control means includes at least one piston defining at least a portion of a sealed chamber for said captive fluid.
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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) | 1983-10-14 | 1984-04-14 | 1984-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-10-14 | 1988-04-14 | 1988-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-10-14 | 1992-04-14 | 1992-10-14 | $7700.00 | Window Closed / Lapsed |