Patent US3812875A successfully refreshed from Google Patents.
US3812875A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve for proportioning fluid flow
Assignee: CASTLE BRASS CONSOLIDATED PATENTS Ltd
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Filing: 1972-02-25
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Granted: 1974-05-28
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Expires: 1992-02-25
Abstract
Abstract The proportioning of the flow of a plurality of fluids, by differentially adjusting the maximum degree of opening relative to their seats of a plurality of valve closure members controlling the flow of such fluids, the said differential adjustment taking place via a cam-like surface co-operating camfollower fashion with the closure members. More specifically a hot water and cold water mixer valve for domestic water installations for use in sinks, baths, or showers, to proportion the flows of hot and cold water through a single outlet and to maintain such flows when adjusted.
Inventors
- 👤 A Buhler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:10
CPC Classifications
F; F16; F16K; F16K11/00; F16K11/10; F16K11/20; F16K11/202; Y; Y10; Y10T; Y10T137/00; Y10T137/7504; Y10T137/7668; Y10T137/8593; Y10T137/87048; Y10T137/87056; Y10T137/87064; Y10T137/87096; Y10T137/87121
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
164 words
A valve sub-assembly which is removably replaceable as a unit in a valve body and which is adapted to seat sealingly in the valve body, the sub-assembly including a plurality of valVe closure members axially displaceable in operation relative to their seats, and an adjustment member having a cam-like adjustment surface for co-operating cam-follower fashion with the valve closure members, the adjustment member being axially displaceable relative to an adjustment axis offset from the axes of the closure members and including a tilt member and a spindle which is co-axial with the adjustment axis and which provides the axial displaceability of the adjustment member along the adjustment axis, the tilt member being pivotally mounted ball and socket fashion on the spindle so as to be arcuately displaceable about the adjustment axis and tiltable relative to the spindle about an axis disposed transversely to the adjustment axis and having the cam-like surface which is thereby also tiltable in abutting relationship with the valve closure members.
Claim 2
Dependent Claim
164 words
A valve sub-assembly which is removably replaceable as a unit in a valve body and which is adapted to seat sealingly in the valve body, the sub-assembly including a plurality of valVe closure members axially displaceable in operation relative to their seats, and an adjustment member having a cam-like adjustment surface for co-operating cam-follower fashion with the valve closure members, the adjustment member being axially displaceable relative to an adjustment axis offset from the axes of the closure members and including a tilt member and a spindle which is co-axial with the adjustment axis and which provides the axial displaceability of the adjustment member along the adjustment axis, the tilt member being pivotally mounted ball and socket fashion on the spindle so as to be arcuately displaceable about the adjustment axis and tiltable relative to the spindle about an axis disposed transversely to the adjustment axis and having the cam-like surface which is thereby also tiltable in abutting relationship with the valve closure members.
Claim 3
Dependent Claim
34 words
A valve sub-assembly as claimed in claim 1, in which the adjustment member is rotatable by means of a handle-like member coaxial with the spindle which is also rotatable by a handle like member.
Claim 4
Dependent Claim
57 words
A valve subassembly as claimed in claim 1, in which there is provided a fulcrum support offset from the adjustment axis and adapted to abut against the tilt member when the spindle is axially displaced along the adjustment axis, thereby providing tilting of the tilt member and hence of the said adjustment surface relative to the spindle.
References Cited (Backward Citations)
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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) | 1977-05-27 | 1977-11-26 | 1978-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-27 | 1981-11-26 | 1982-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-27 | 1985-11-26 | 1986-05-28 | $7700.00 | Window Closed / Lapsed |