US3620241A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination plumbing fixture for water purification system having waste bypass flow
Assignee: Desalination Systems Inc
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Filing: 1970-08-03
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Granted: 1971-11-16
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Expires: 1990-08-03
Abstract
Abstract In a water purification system wherein a supply of pressurized, potable, product water is to be dispensed as required, and a small volume flow of nonpressurized byproduct waste water is to be discharged to a potentially contaminated drain, a combination plumbing fixture comprises a body with a valve-controlled passage therethrough for dispensing the potable water. A pair of axially upright ducts are provided through a faucet body, the lower end of one of the ducts being connected to receive the flow of waste byproduct water, and the lower end of the other duct being connected to the drain. A recess in the body encompasses the upper ends of both ducts, and a gooseneck tube is fitted into the upper end of said one duct and discharges the waste water in a free fall into the other duct. A vent opening in the other duct provides an antisiphon airgap.
Inventors
- 👤 Ross M Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:25
CPC Classifications
E; E03; E03C; E03C1/00; E03C1/02; E03C1/10; E03C1/102; Y; Y10; Y10T; Y10T137/00; Y10T137/3149; Y10T137/3185; Y10T137/8593; Y10T137/87153; Y10T137/9464
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
203 words
A combination plumbing fixture for dispensing on demand a supply of pressurized product water, and disposing to a potentially contaminated drain a relatively low volume flow of waste water at atmospheric pressure, comprising: a fixture body having a valve-controlled passage for pressurized product water extending therethrough, and having also a ductreceiving portion on at least one side of said product water passage of sufficient thickness to admit a pair of ducts therein. an inlet duct extending upwardly through such body portion to the atmosphere, an outlet duct extending upwardly through such body portion to the atmosphere, means directing waste water flowing through the inlet duct into the upper portion of the outlet duct for free gravity flow downwardly therethrough, the outlet duct having a vent opening therein a specified airgap distance below the point at which the water from the inlet duct is directed into the outlet duct, means connecting an end of the product water passage in sealed relation to such supply of pressurized, product water from such system, means connecting the lower end of the inlet duct in sealed relation to such flow of waste water, and means connecting the lower end of the outlet duct to a potentially contaminated drain.
Claim 2
Dependent Claim
203 words
A combination plumbing fixture for dispensing on demand a supply of pressurized product water, and disposing to a potentially contaminated drain a relatively low volume flow of waste water at atmospheric pressure, comprising: a fixture body having a valve-controlled passage for pressurized product water extending therethrough, and having also a ductreceiving portion on at least one side of said product water passage of sufficient thickness to admit a pair of ducts therein. an inlet duct extending upwardly through such body portion to the atmosphere, an outlet duct extending upwardly through such body portion to the atmosphere, means directing waste water flowing through the inlet duct into the upper portion of the outlet duct for free gravity flow downwardly therethrough, the outlet duct having a vent opening therein a specified airgap distance below the point at which the water from the inlet duct is directed into the outlet duct, means connecting an end of the product water passage in sealed relation to such supply of pressurized, product water from such system, means connecting the lower end of the inlet duct in sealed relation to such flow of waste water, and means connecting the lower end of the outlet duct to a potentially contaminated drain.
Claim 3
Dependent Claim
46 words
A plumbing fixture as claimed in claim 1 wherein at least the upper portion of the outlet duct for a selected distance is vertical when the fixture is mounted in a predetermined position, and the vent opening is in the vertical portion of the outlet duct.
Claim 4
Dependent Claim
32 words
A plumbing fixture as claimed in claim 1 wherein the body has a flat base, and the fixture is designed for mounting with the flat base mounted upon a horizontal supporting surface.
Claim 5
Dependent Claim
79 words
A plumbing fixture as defined in claim 1 wherein a gooseneck tube comprising two straight side portions and an interconnecting curved portion has one of said straight side portions fitted into the upper end of the inlet duct and its other side portion directed downwardly axially into the outlet duct, the outlet duct having an internal diameter sufficiently large to permit a stream of waste water from the gooseneck tube to fall free therein for such specified airgap distance.
Claim 6
Dependent Claim
24 words
A fixture as defined in claim 4 wherein the lower end of said passage and of both of said ducts is within the base.
Claim 7
Dependent Claim
96 words
A plumbing fixture as claimed in claim 5 wherein the means connecting the lower end of the potable water passage to the supply of pressurized water comprises a straight, threaded tube for inserting through a hole in a supporting drainboard, a compression nut is provided for screwing onto the threaded tube to grip the drainboard, and the means for connecting the lower end of the ducts comprises a small-diameter bendable tube fitted in sealed relation into the lower end of each duct to pass through the same hole in the drainboard laterally beyond the compression nut.
Claim 8
Dependent Claim
39 words
A plumbing fixture as claimed in claim 1 wherein a recess is provided in the upper end of the body encompassing the upper ends of both ducts and lowering the body material between said ducts to form a weir.
Claim 9
Dependent Claim
97 words
A fixture as claimed in claim 1 wherein a tube having at least one straight side portion and a curved portion has said one side portion fitted into the upper end portion of the inlet duct, and the other end thereof directed downwardly axially into the outlet duct, such other end having an outlet opening therein substantially smaller than the outlet duct so that a stream of waste water discharged from such outlet opening falls free, axially into the outlet duct, the vent opening to the atmosphere being located such specified airgap distance below such outlet opening.
Claim 10
Dependent Claim
22 words
A fixture as claimed in claim 8 wherein a valve-actuating element overlies and substantially conceals the curved portion of the gooseneck tube.
Claim 11
Dependent Claim
67 words
A fixture as claimed in claim 8 wherein a narrow recess is provided in the top of the body and encompasses the upper ends of both ducts, said recess being centered on a plane containing the axis of both ducts, the recess being of a width throughout at least a part of its length to receive the curved portion of the gooseneck tube in fitted relation therein.
References Cited (Backward Citations)
US3183923A
Cited
US3455324A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-15 | 1975-05-17 | 1975-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-15 | 1979-05-17 | 1979-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-15 | 1983-05-17 | 1983-11-16 | $7700.00 | Window Closed / Lapsed |