US3830464A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Taps and valves
Assignee: Polypipe Terrain Ltd
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Filing: 1972-06-21
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Granted: 1974-08-20
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Expires: 1992-06-21
Abstract
Abstract A tap or valve having a valve housing in which is disposed a valve assembly comprising a longitudinally movable operating spindle carrying a valve member, a rotatable operating sleeve threadedly engaging the spindle and a closure sleeve threadedly engaging the valve housing to trap the operating sleeve in the housing, the spindle, the operating sleeve and the closure sleeve being concentrically disposed over part of their lengths within the valve housing.
Inventors
- 👤 R Parker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:21
CPC Classifications
F; F16; F16K; F16K1/00; F16K1/02
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
179 words
A tap or valve comprising a body having a passage through it for fluid, a valve housing opening into the passage, and a valve assembly disposed in the valve housing and operable to adjust the flow of fluid along the passage, the valve assembly comprising a spindle restrained against rotation in the housing and a valve member carried by the spindle for obstructing the passage, a rotatable operating sleeve restrained against axial movement in the valve housing and threadably engaging the spindle so that upon rotation it causes axial movement of the spindle to adjust the position of the valve member relative to the passage, and a closure sleeve threadably engaging the body to trap the operating sleeve in the valve housing, the rotatable operating sleeve being closed at its outer end and extending completely through the closure sleeve and being stepped radially outwardly at its inner end to provide a flange, a single sealing means consisting of a sealing ring mounted on the periphery of the flange and sealingly engaging the internal wall surface of the valve housing.
Claim 2
Dependent Claim
179 words
A tap or valve comprising a body having a passage through it for fluid, a valve housing opening into the passage, and a valve assembly disposed in the valve housing and operable to adjust the flow of fluid along the passage, the valve assembly comprising a spindle restrained against rotation in the housing and a valve member carried by the spindle for obstructing the passage, a rotatable operating sleeve restrained against axial movement in the valve housing and threadably engaging the spindle so that upon rotation it causes axial movement of the spindle to adjust the position of the valve member relative to the passage, and a closure sleeve threadably engaging the body to trap the operating sleeve in the valve housing, the rotatable operating sleeve being closed at its outer end and extending completely through the closure sleeve and being stepped radially outwardly at its inner end to provide a flange, a single sealing means consisting of a sealing ring mounted on the periphery of the flange and sealingly engaging the internal wall surface of the valve housing.
Claim 3
Dependent Claim
34 words
A tap or valve as claimed in claim 1, wherein the spindle in the region of its inner end extends through guide means which prevent rotation of the spindle relative to the valve housing.
Claim 4
Dependent Claim
52 words
A tap or valve as claimed in claim 2, wherein the guide means comprises a removable collar non-rotatably located within the valve housing and having an aperture through which the operating spindle passes the aperture and the portion of the spindle passing through it being shaped to prevent rotation of the spindle.
Claim 5
Dependent Claim
46 words
A tap or valve as claimed in claim 3, wherein the collar abuts against aN internal shoulder in the valve housing and provides an abutment for the operating sleeve so that the operating sleeve is trapped against axial movement between the closure sleeve and the collar.
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) | 1977-08-19 | 1978-02-18 | 1978-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-19 | 1982-02-18 | 1982-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-19 | 1986-02-18 | 1986-08-20 | $7700.00 | Window Closed / Lapsed |