US3965925A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pinch valve
Assignee: J H GOOCH AND CO Ltd
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Filing: 1975-03-17
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Granted: 1976-06-29
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Expires: 1995-03-17
Abstract
Abstract A pinch valve has a tubular resilient sleeve with at least one transversely elongate aperture extending through it that is opened and closed by a control member having elements engaging diametrically opposite regions of the sleeve. The control member is rotatable on the sleeve between one angular position in which said elements engage regions of the sleeve substantially co-incident with the transverse longitudinal axis of said aperture to hold the aperture open, and another angular position in which the elements engage opposite regions transverse to said axis to squeeze said aperture closed.
Inventors
- 👤 John Henry Gooch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:58
CPC Classifications
F; F16; F16K; F16K7/00; F16K7/02; F16K7/04; F16K7/06; Y; Y10; Y10T; Y10T137/00; Y10T137/7287; Y10T137/7358; Y10T137/7439; Y10T137/7494
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
104 words
A valve comprising, in combination, a resilient tubular valve member, at least one transversely elongate passage through the valve member that is capable of being opened and closed by deformation of the valve member, an outer control member extending around at least a part of the periphery of the valve member and rotatable relative to the valve member about said periphery, said control member engaging different portions of the valve member periphery in respective positions of relative rotational adjustment in one of which it urges said at least one passage open and in another of which it urges said at least one passage closed.
Claim 2
Dependent Claim
104 words
A valve comprising, in combination, a resilient tubular valve member, at least one transversely elongate passage through the valve member that is capable of being opened and closed by deformation of the valve member, an outer control member extending around at least a part of the periphery of the valve member and rotatable relative to the valve member about said periphery, said control member engaging different portions of the valve member periphery in respective positions of relative rotational adjustment in one of which it urges said at least one passage open and in another of which it urges said at least one passage closed.
Claim 3
Dependent Claim
43 words
A valve according to claim 1 wherein the valve member comprises a longitudinally intermediate region containing said at least one passage, and end regions extending oppositely from said intermediate region which defines a fluid conduit means of lesser cross-section than the end regions.
Claim 4
Dependent Claim
29 words
A valve according to claim 2 wherein the internal cross-section of the valve member tapers from each end region to the at least one passage in said intermediate region.
Claim 5
Dependent Claim
18 words
A valve according to claim 1 wherein said intermediate and end regions are formed integrally with each other.
Claim 6
Dependent Claim
32 words
A valve according to claim 1 wherein the valve member comprises an outer sleeve and an insert in said outer sleeve disposed intermediate its length and defining said at least one passage.
Claim 7
Dependent Claim
35 words
A valve according to claim 1 comprising a series of rolling bearing elements arranged between the valve member and the control member and transmitting the engagement forces of the control member deforming the valve member.
Claim 8
Dependent Claim
36 words
A valve according to claim 1 wherein the control member comprises elements that bear on diametrically opposite portions of the valve member to maintain said at least one passage in the respective open and closed positions.
Claim 9
Dependent Claim
25 words
A valve according to claim 7 wherein the control member is in the form of a yoke having opposite arms which provide said bearing elements.
Claim 10
Dependent Claim
33 words
A valve according to claim 7 wherein the valve member is in the form of a closed ring having a non-circular inner periphery with portions at a lesser radius providing said bearing elements.
Claim 11
Dependent Claim
35 words
A valve according to claim 9 wherein the control member has an inner surface arranged to engage a substantially continuous circumferential extent of the valve member in at least one position of the control member.
Claim 12
Dependent Claim
24 words
A valve according to claim 1 further comprising means for limiting the extent of relative rotation between the valve member and the control member.
Claim 13
Dependent Claim
38 words
A valve according to claim 11 wherein said limiting means comprise at least one radially projecting element on one of said members and a co-operating end stop on the other of said members engageable with said projecting element.
Claim 14
Dependent Claim
21 words
A valve according to claim 1 further comprising means for relative longitudinal location of the valve member and the control member.
Claim 15
Dependent Claim
36 words
A valve according to claim 1 further comprising a lever arm secured to the control member and a float on said lever arm remote from the control member for use in a liquid level control arrangement.
Claim 16
Dependent Claim
34 words
A valve according to claim 1 having a moulded valve member and at least a rigid inlet terminal member integrally incorporated in the moulded valve member for connection of the valve to a pipeline.
References Cited (Backward Citations)
DE269907C
Cited
GB917803A
Cited
GB189823507A
Cited
CH268933A
Cited
US2883150A
Cited
US2987292A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-06-29 | 1979-12-29 | 1980-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-29 | 1983-12-29 | 1984-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-29 | 1987-12-29 | 1988-06-29 | $7700.00 | Window Closed / Lapsed |