US3794074A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mixer taps
Assignee: H E D E Ltd
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Filing: 1972-09-20
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Granted: 1974-02-26
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Expires: 1992-09-20
Abstract
Abstract A mixing valve comprising a chamber having a surface defining a valve seat, hot and cold water inlets opening into said chamber at said seat, a valve member disposed in said chamber and slidably associated with said seat and having passage means therein movable into and out of registry with said inlets, a lever having one end interconnected to the valve member and a journal intermediate the ends mounted in a journal bearing spaced from said seat for swinging movement in a single plane extending normal to said seat so as to move the valve member in a straight path aligned with said single plane and for rotation about the longitudinal axis so as to rotate the valve member about an axis fixed with respect to the valve member and always lying substantially in said single plane, the lever and/or the valve member being guided between opposed parallel plane surfaces lying normal to the seat respectively at opposite sides of said single plane, and at least one sealing ring in engagement with the journal for sealing said journal with respect to said journal bearing to prevent water leaking along the spindle from the chamber to atmosphere.
Inventors
- 👤 H Watts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:14
CPC Classifications
F; F16; F16K; F16K11/00; F16K11/02; F16K11/06; F16K11/078; F16K11/0782; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86815
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
198 words
A single handle mixing valve including a chamber having a wall surface constituting a valve seat; hot and cold water inlets opening into said chamber at said surface; a valve member disposed in said chamber and slidably associated with said valve seat; passages in said valve member movable into and out of registry with said water inlets; a lever having one end interconnected with the valve member; means for guiding the lever in a single plane for movement of said valve member by said lever in a straight line; means for transmitting rotation from said lever to said valve member for rotating said valve member by said lever, said means being constituted by a sleeve which is carried by the lever, said sleeve having radially extending ears which engage the parallel surfaces which guide said lever in a single plane whereby the abutment of the ears with said parallel surfaces limits the rotation of the lever; means for mounting said lever intermediate its ends, said means including a bearing having a part-spherical journal engaging a part-spherical seating; and sealing means interposed between said part-spherical journal and said part-spherical seating for preventing the leakage of water from the chamber.
Claim 2
Dependent Claim
198 words
A single handle mixing valve including a chamber having a wall surface constituting a valve seat; hot and cold water inlets opening into said chamber at said surface; a valve member disposed in said chamber and slidably associated with said valve seat; passages in said valve member movable into and out of registry with said water inlets; a lever having one end interconnected with the valve member; means for guiding the lever in a single plane for movement of said valve member by said lever in a straight line; means for transmitting rotation from said lever to said valve member for rotating said valve member by said lever, said means being constituted by a sleeve which is carried by the lever, said sleeve having radially extending ears which engage the parallel surfaces which guide said lever in a single plane whereby the abutment of the ears with said parallel surfaces limits the rotation of the lever; means for mounting said lever intermediate its ends, said means including a bearing having a part-spherical journal engaging a part-spherical seating; and sealing means interposed between said part-spherical journal and said part-spherical seating for preventing the leakage of water from the chamber.
Claim 3
Dependent Claim
60 words
A single handle mixing valve according to claim 1, in which the sealing means which are provided between the part-spherical journal and its seating are constituted by a sealing ring disposed in an annular recess in the seating to be located in a plane containing the center of the part-spherical journal and to bear against said journal in sealing relation.
Claim 4
Dependent Claim
190 words
A single handle mixing valve including a chamber having a wall surface constituting a valve seat; hot and cold water inlets opening into said chamber at said surface; a valve member disposed in said chamber and slidably associated with said valve seat; passages in said valve member movable into and out of registry with said water inlets; a lever having one end interconnected with the valve member; means for transmitting rotation from said lever to said valve member for rotating said valve member by said lever, the valve member being provided with converging side faces which can engage parallel plane surfaces constituting side walls of the chamber to limit rotation of the valve member to between two angularly spaced positions and to constitute means for guiding said valve member and lever in a single plane for movement of said valve member by sAid lever in a straight line; means for mounting said lever intermediate its ends, said means including a bearing having a part-spherical journal engaging a part-spherical seating; and sealing means interposed between said part-spherical journal and said part-spherical seating for preventing the leakage of water from the chamber.
Claim 5
Dependent Claim
190 words
A single handle mixing valve including a chamber having a wall surface constituting a valve seat; hot and cold water inlets opening into said chamber at said surface; a valve member disposed in said chamber and slidably associated with said valve seat; passages in said valve member movable into and out of registry with said water inlets; a lever having one end interconnected with the valve member; means for transmitting rotation from said lever to said valve member for rotating said valve member by said lever, the valve member being provided with converging side faces which can engage parallel plane surfaces constituting side walls of the chamber to limit rotation of the valve member to between two angularly spaced positions and to constitute means for guiding said valve member and lever in a single plane for movement of said valve member by sAid lever in a straight line; means for mounting said lever intermediate its ends, said means including a bearing having a part-spherical journal engaging a part-spherical seating; and sealing means interposed between said part-spherical journal and said part-spherical seating for preventing the leakage of water from the chamber.
Claim 6
Dependent Claim
60 words
A single handle mixing valve according to claim 3, in which the sealing means which are provided between the part-spherical journal and its seating are constituted by a sealing ring disposed in an annular recess in the seating to be located in a plane containing the center of the part-spherical journal and to bear against said journal in sealing relation.
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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) | 1977-02-25 | 1977-08-27 | 1978-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-25 | 1981-08-27 | 1982-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-25 | 1985-08-27 | 1986-02-26 | $7700.00 | Window Closed / Lapsed |