US3811649A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Constrictable tube valve with plural wall tube
Assignee: Crane Co
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Filing: 1972-07-20
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Granted: 1974-05-21
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Expires: 1992-07-20
Abstract
Abstract The tube of a constrictable tube valve is formed with a plural wall of which the outermost wall is shorter than the innermost wall. A metal housing with internal surfaces of varying perimeter or girth closely fits around the separate walls with the innermost wall extending outside the housing where it is radially flared over the faces of flanges on the housing. A plurality of connecting elements pass through the outermost wall of the tube and connect with the innermost wall. The free ends of the connecting elements are coupled to one or the other of two compressor members which exert closing pressure upon the tube. A separate metal fork having its tines inserted in a corresponding base on the innermost tube wall serves to anchor the respective connecting element thereto.
Inventors
- 👤 I Press
- 👤 H Rink
- 👤 J Menzel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:09
CPC Classifications
F; F16; F16K; F16K7/00; F16K7/02; F16K7/04; F16K7/06; F16K7/061
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
88 words
A valve of the type wherein a tube of flexible material is flattened to form a barrier to the flow of fluid material therethrough, comprising in combination a plural-wall tube of flexible material, a pair of compressor members for adjustably constricting said tube transversely thereof, a plurality of connecting elements passing through the outer walls of said tube and secured to the innermost wall thereof, and means coupling said elements to said compressor members for effecting positive expansion of said tube when the compressor members are moved apart.
Claim 2
Dependent Claim
88 words
A valve of the type wherein a tube of flexible material is flattened to form a barrier to the flow of fluid material therethrough, comprising in combination a plural-wall tube of flexible material, a pair of compressor members for adjustably constricting said tube transversely thereof, a plurality of connecting elements passing through the outer walls of said tube and secured to the innermost wall thereof, and means coupling said elements to said compressor members for effecting positive expansion of said tube when the compressor members are moved apart.
Claim 3
Dependent Claim
79 words
A valve according to claim 1, wherein said tube and compressor members are closely surrounded by a rigid housing having end flanges surrounding opposite ends of said tube, the outermost wall of said tube being shorter than the innermost wall of said tube and terminating inwardly of the faces of said end flanges while the innermost wall of said tube extends out of said housing where it is flared radially outwardly over the respective faces of said end flanges.
Claim 4
Dependent Claim
43 words
A valve according to claim 2, wherein said housing has an inner wall of varying perimeter for closely surrounding said innermost tube wall beyond the termination of said outermost tube wall and for closely surrounding said outermost tube wall at its respective ends.
Claim 5
Dependent Claim
74 words
A valve according to claim 1, wherein a pair of edge clamps are disposed at opposite sides of said tube securing opposite edges of said tube in substantially permanent folded fluid sealing embrace, said tube being folded around a smoothly contoured filler piece within each edge clamp, and said compressor members extend across said tube in overlapping relationship with respect to said edge clamps to ensure complete edge-to-edge sealing upon closure of said valve.
Claim 6
Dependent Claim
92 words
A valve according to claim 1, wherein the outer surface of said innermost wall of said tube is formed with a pair of bosses located longitudinally spaced from the region which is flattened on one side thereof in substantially diametral opposition, and wherein means are provided joining one end of each of a pair of said connecting elements to a corresponding one of said bosses, and said means coupling said elements to said compressor members includes means joining the opposite ends of said pair of elements articulately to the adjacent compressor member.
Claim 7
Dependent Claim
58 words
A valve according to claim 5, wherein the means joining the end of said element to a boss comprises a metal fork anchor having its tines inserted transversely into a side of the boss and a body section curved back upon itself to overlie the surface of the boss and to secure the end of the connecting element.
Claim 8
Dependent Claim
78 words
A valve according to claim 5, wherein said inner wall of the tube is provided with a second pair of bosses located longitudinally spaced from said region which is flattened on the other side from said first pair and in substantially the same diametral opposition, said second pair of bosses being coupled to the opposite side of said corresponding adjacent compressor members by a separate pair of said connecting elements in a similar manner to said first pair.
Claim 9
Dependent Claim
63 words
A valve according to claim 7, wherein the means joining the ends of said elements to each of said bosses comprises a respective metal fork anchor having its tines inserted transversely into a side of the corresponding boss and a body section curved back upon itself to overlie the surface of the corresponding boss and secure the end of the respective connecting element.
Claim 10
Dependent Claim
79 words
A valve according to claim 7, wherein said tube and compressor members are closely surrounded by a rigid housing having end flanges surrounding opposite ends of said tube, the outermost wall of said tube being shorter than the innermost wall of said tube and terminating inwardly of the faces of said end flanges while the innermost wall of said tube extends out of said housing where it is flared radially outwardly over the respective faces of said end flanges.
Claim 11
Dependent Claim
43 words
A valve according to claim 9, wherein said housing has an inner wall of varying perimeter for closely surrounding said innermost tube wall beyond the termination of said outermost tube wall and for closely surrounding said outermost tube wall at its respective ends.
Claim 12
Dependent Claim
63 words
A valve according to claim 10, wherein the means joining the ends of said elements to each of said bosses comprises a respective metal fork anchor having its tines inserted transversely into a side of the corresponding boss and a body section curved back upon itself to overlie the surface of the corresponding boss and secure the end of the respective connecting element.
Claim 13
Dependent Claim
24 words
A valve according to claim 1, wherein the walls of said tube are provided by two concentric snugly interfitted tubular elements of polytetrafluoroethylene resin.
Claim 14
Dependent Claim
19 words
A valve according to claim 12, wherein said connecting elements pass loosely through apertures in said outermost tubular element.
Claim 15
Dependent Claim
74 words
A valve according to claim 13, wherein said tubular elements and compressor members are closely surrounded by a rigid housing having end flanges surrounding opposite ends of said tube, the outermost tubular element being shorter than the innermost tubular element and terminating inwardly of the faces of said end flanges while the innermost tubular element extends out of said housing where it is flared radially outwardly over the respective faces of said end flanges.
Claim 16
Dependent Claim
128 words
A tube for a constrictable tube valve comprising at least two concentric snugly interfitted tubular elements of polytetrafluorethylene resin, the innermost tubular element being longer than the outermost tubular element and having its ends flared radially outwardly, the outer surface of the innermost tubular element having two bosses spaced apart along a longitudinal element on one side of the tubular element and two further bosses similarly spaced along a longitudinal element on the diametrically opposite side of the tubular element such that pairs of said bosses are in substantially diametral opposition, individual anchor means joined to a corresponding one of said bosses beneath all outer tubular elements, and corresponding apertures in said outer tubular elements overlying each of said bosses for providing access to the respective anchor means.
Claim 17
Dependent Claim
128 words
A tube for a constrictable tube valve comprising at least two concentric snugly interfitted tubular elements of polytetrafluorethylene resin, the innermost tubular element being longer than the outermost tubular element and having its ends flared radially outwardly, the outer surface of the innermost tubular element having two bosses spaced apart along a longitudinal element on one side of the tubular element and two further bosses similarly spaced along a longitudinal element on the diametrically opposite side of the tubular element such that pairs of said bosses are in substantially diametral opposition, individual anchor means joined to a corresponding one of said bosses beneath all outer tubular elements, and corresponding apertures in said outer tubular elements overlying each of said bosses for providing access to the respective anchor means.
Claim 18
Dependent Claim
131 words
A valve of the type wherein a tube of flexible material is flattened to form a barrier to the flow of fluid material therethrough, comprising in combination a tube of flexible material, an actuator assembly coupled to said tube for adjustably constricting said tube transversely thereof, a rigid housing surrounding said tube and actuator assembly, said actuator assembly including a valve stem projecting therefrom and passing through an aperture in said housing, said stem being movable relative to said housing for manipulating said actuator assembly, and a grommet formed from P.T.F.E. resin surrounding said stem within said aperture for sealing said housing against gross egress of fluid in case of failure of said tube, said grommet including a series of circumferential grooves located around its outer surface for imparting resiliency thereto.
Claim 19
Dependent Claim
131 words
A valve of the type wherein a tube of flexible material is flattened to form a barrier to the flow of fluid material therethrough, comprising in combination a tube of flexible material, an actuator assembly coupled to said tube for adjustably constricting said tube transversely thereof, a rigid housing surrounding said tube and actuator assembly, said actuator assembly including a valve stem projecting therefrom and passing through an aperture in said housing, said stem being movable relative to said housing for manipulating said actuator assembly, and a grommet formed from P.T.F.E. resin surrounding said stem within said aperture for sealing said housing against gross egress of fluid in case of failure of said tube, said grommet including a series of circumferential grooves located around its outer surface for imparting resiliency thereto.
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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) | 1977-05-20 | 1977-11-19 | 1978-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-20 | 1981-11-19 | 1982-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-20 | 1985-11-19 | 1986-05-21 | $7700.00 | Window Closed / Lapsed |