US3695576A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reinforced boot for slurry type pinch valve
Assignee: Fisher Controls International LLC
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Filing: 1970-01-12
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Granted: 1972-10-03
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Expires: 1990-01-12
Abstract
Abstract In a slurry type pinch valve for use in controlling the flow of materials, the valve is formed from various plies of a resilient composition, such as elastomer material, and embedded within the plies of said composition are one or more plies of fabric which contains reinforcing cords that are arranged approximately parallel within each ply, but which cords are free from contiguous contact with each other; at least one ply of the fabric has cords maintained longitudinally of the valve, and the ends of said ply are turned approximately perpendicularly to provide for their integral embedment within the elastomeric formed flanges provided at each end of the valve. This valve may be used in conjunction with a pair of valve actuators that are disposed diametrically approximate the midpoint of the valve, so that each actuator is capable of simultaneously compressing the valve approximately half of its diameter to curtail flow of materials therethrough. In the process of forming said valve, at least one ply of the elastomeric composition is wound around a core, the ply of fabric having cords maintained longitudinally of the valve is subsequently wound around said first ply, and then additional plies of elastomeric composition and of fabric having cords aligned circumferentially of the valve may be wound around said core to complete the valve; the extended ends of the longitudinally corded fabric are turned for disposition intermediate a pair of elastomeric annuluses provided at each end of the valve, and then the entire fabricated valve is placed within a mold and heated to cure the valve into an integral unit.
Inventors
- 👤 Robert R Kane
- 👤 Charles J Glaser Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:27
CPC Classifications
B; B65; B65D; B65D90/00; B65D90/54; B65D90/56; F; F16; F16K; F16K7/00; F16K7/02; F16K7/04; F16K7/06; F16L; F16L11/00; F16L11/04; F16L11/08; F16L11/081; F16L11/082; F16L33/00; F16L33/28
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
219 words
In a reinforced pinch valve for use in controlling the flow of materials therethrough, said valve being formed of a resilient composition capable of being compressed to curtail flow of material therethrough, said valve capable of reacquiring its initial integrity after discontinuance of compression, a series of reinforcing cords of which select cords are arranged approximately parallel to each other being embedded within said resilient composition, said parallel reinforcing cords being free of contiguous contact with each other thereby reducing the incidence of their mutual shear when the valve is compressed to curtail flow of materials therethrough, certain of said reinforcing cords being arranged longitudinally of the valve, the remaining of the approximately parallel reinforcing cords being arranged circumferentially of said valve, said valve being formed having flanged ends, each flanged end of the pinch valve comprising a first elastomeric annulus, the incontiguous cords arranged longitudinally of the valve extending through said annulus and being turned and maintained contiguous with the surface of said annulus, a second elastomeric annulus being integrally connected to said first annulus, at least one fabric reinforced annulus disposed intermediate the first and second elastomeric annuluses, said second elastomeric annulus being integrally connected to said first elastomeric annulus thereby embedding the turned portion of said longitudinal cords and the fabric annulus integrally into a flange.
Claim 2
Dependent Claim
219 words
In a reinforced pinch valve for use in controlling the flow of materials therethrough, said valve being formed of a resilient composition capable of being compressed to curtail flow of material therethrough, said valve capable of reacquiring its initial integrity after discontinuance of compression, a series of reinforcing cords of which select cords are arranged approximately parallel to each other being embedded within said resilient composition, said parallel reinforcing cords being free of contiguous contact with each other thereby reducing the incidence of their mutual shear when the valve is compressed to curtail flow of materials therethrough, certain of said reinforcing cords being arranged longitudinally of the valve, the remaining of the approximately parallel reinforcing cords being arranged circumferentially of said valve, said valve being formed having flanged ends, each flanged end of the pinch valve comprising a first elastomeric annulus, the incontiguous cords arranged longitudinally of the valve extending through said annulus and being turned and maintained contiguous with the surface of said annulus, a second elastomeric annulus being integrally connected to said first annulus, at least one fabric reinforced annulus disposed intermediate the first and second elastomeric annuluses, said second elastomeric annulus being integrally connected to said first elastomeric annulus thereby embedding the turned portion of said longitudinal cords and the fabric annulus integrally into a flange.
Claim 3
Dependent Claim
254 words
In a reinforced pinch valve for use in controlling the flow of materials therethrough, said valve being formed of a resilient composition capable of being compressed to curtail flow of material therethrough, said valve capable of reacquiring its initial integrity after discontinuance of compression, a series of reinforcing cords of which select cords are arranged approximately parallel to each other being embedded within said resilient composition, said parallel reinforcing cords being free of contiguous contact with each other thereby reducing the incidence of their mutual shear when the valve is compressed to curtail flow of materials therethrough, certain of said reinforcing cords being arranged longitudinally of the valve, the remaining of the approximately parallel reinforcing cords being arranged circumferentially of said valve, said valve being formed having flanged ends, each flanged end of the pinch valve comprising a first elastomeric annulus being located proximate the ends of the resilient composition forming the valve, the incontiguous cords arranged longitudinally of the valve extending through said annulus and being turned and maintained contiguous with the surface of said annulus, and a second elastomeric annulus being integrally connected to said first annulus, a pair of fabric reinforced annuluses disposed intermediate The first and second elastomeric annuluses, the strands of one fabric annulus being disposed annularly with respect to the strands of the second fabric annulus, and said second elastomeric annulus being integrally connected to said first elastomeric annulus thereby embedding the turned portion of said longitudinal cords and the pair of fabric annuluses integrally into a flange.
Claim 4
Dependent Claim
254 words
In a reinforced pinch valve for use in controlling the flow of materials therethrough, said valve being formed of a resilient composition capable of being compressed to curtail flow of material therethrough, said valve capable of reacquiring its initial integrity after discontinuance of compression, a series of reinforcing cords of which select cords are arranged approximately parallel to each other being embedded within said resilient composition, said parallel reinforcing cords being free of contiguous contact with each other thereby reducing the incidence of their mutual shear when the valve is compressed to curtail flow of materials therethrough, certain of said reinforcing cords being arranged longitudinally of the valve, the remaining of the approximately parallel reinforcing cords being arranged circumferentially of said valve, said valve being formed having flanged ends, each flanged end of the pinch valve comprising a first elastomeric annulus being located proximate the ends of the resilient composition forming the valve, the incontiguous cords arranged longitudinally of the valve extending through said annulus and being turned and maintained contiguous with the surface of said annulus, and a second elastomeric annulus being integrally connected to said first annulus, a pair of fabric reinforced annuluses disposed intermediate The first and second elastomeric annuluses, the strands of one fabric annulus being disposed annularly with respect to the strands of the second fabric annulus, and said second elastomeric annulus being integrally connected to said first elastomeric annulus thereby embedding the turned portion of said longitudinal cords and the pair of fabric annuluses integrally into a flange.
Claim 5
Dependent Claim
254 words
In a reinforced pinch valve for use in controlling the flow of materials therethrough, said valve being formed of a resilient composition capable of being compressed to curtail flow of materials therethrough, said valve capable of reacquiring its initial integrity after discontinuance of compression, a series of reinforcing cords of which select cords are arranged approximately parallel to each other being embedded within said resilient composition, the parallel reinforcing cords of the valve being free of contiguous contact with each other thereby reducing the incidence of their mutual shear when the valve is compressed to curtail flow of materials therethrough, certain of said parallel reinforcing cords being arranged longitudinally of the valve, the remaining of the approximately parallel reinforcing cords being arranged circumferentially of the valve, said valve being formed having flanged ends, the incontiguous cords being arranged longitudinally of the valve being turned at the valve ends for integral embedment within its flanges, each flanged end of the pinch valve comprises a first elastomeric annulus being located proximate the ends of the resilient composition forming the valve, the cords arranged longitudinally of the valve extending through said annulus and being turned and maintained contiguous with the surface of said annulus, a second elastomeric annulus being integrally connected to said first annulus, at least one fabric reinforced annulus disposed intermediate the first and second elastomeric annuluses, and said second annulus being integrally connected to said first annulus thereby embedding the turned portion of said longitudinal cords and the fabric annulus integrally into a flange.
Claim 6
Dependent Claim
254 words
In a reinforced pinch valve for use in controlling the flow of materials therethrough, said valve being formed of a resilient composition capable of being compressed to curtail flow of materials therethrough, said valve capable of reacquiring its initial integrity after discontinuance of compression, a series of reinforcing cords of which select cords are arranged approximately parallel to each other being embedded within said resilient composition, the parallel reinforcing cords of the valve being free of contiguous contact with each other thereby reducing the incidence of their mutual shear when the valve is compressed to curtail flow of materials therethrough, certain of said parallel reinforcing cords being arranged longitudinally of the valve, the remaining of the approximately parallel reinforcing cords being arranged circumferentially of the valve, said valve being formed having flanged ends, the incontiguous cords being arranged longitudinally of the valve being turned at the valve ends for integral embedment within its flanges, each flanged end of the pinch valve comprises a first elastomeric annulus being located proximate the ends of the resilient composition forming the valve, the cords arranged longitudinally of the valve extending through said annulus and being turned and maintained contiguous with the surface of said annulus, a second elastomeric annulus being integrally connected to said first annulus, at least one fabric reinforced annulus disposed intermediate the first and second elastomeric annuluses, and said second annulus being integrally connected to said first annulus thereby embedding the turned portion of said longitudinal cords and the fabric annulus integrally into a flange.
Claim 7
Dependent Claim
251 words
In a reinforced pinch valve for use in controlling the flow of materials therethrough, said valve being formed of a resilient composition capable of being compressed to curtail flow of materials therethrough, said valve capable of reacquiring its initial integrity after discontinuance of compression, a series of reinforcing cords of which select cords are arranged approximately parallel to each other being embedded within said resilient composition, the parallel reinforcing cords of the valve being free of contiguous contact with each other thereby reducing the incidence of their mutual sheer when the valve is compressed, certain of said parallel reinforcing cords being arranged circumferentially of the valve, said valve being formed having flanged ends, the incontiguous cords arranged longitudinally of the valve being turned at the valve ends for integral embedment within its flanges, each flanged end of the pinch valve comprises a first elastomeric annulus being located proximate the ends of the resilient composition forming the valve, the cords arranged longitudinally of the valve extending through said annulus and being turned and maintained contiguous with the surface of said annulus, a second elastomeric annulus being integrally connected to said first annulus, a pair of fabric reinforced annuluses disposed intermediate the first and second elastomeric annuluses, the strands of one fabric annulus being disposed angularly with respect to the strands of the second fabric annulus, said second elastomeric annulus being integrally connected to said first elastomeric annulus thereby embedding said longitudinal cords and the pair of fabric annuluses integrally into a flange.
Claim 8
Dependent Claim
251 words
In a reinforced pinch valve for use in controlling the flow of materials therethrough, said valve being formed of a resilient composition capable of being compressed to curtail flow of materials therethrough, said valve capable of reacquiring its initial integrity after discontinuance of compression, a series of reinforcing cords of which select cords are arranged approximately parallel to each other being embedded within said resilient composition, the parallel reinforcing cords of the valve being free of contiguous contact with each other thereby reducing the incidence of their mutual sheer when the valve is compressed, certain of said parallel reinforcing cords being arranged circumferentially of the valve, said valve being formed having flanged ends, the incontiguous cords arranged longitudinally of the valve being turned at the valve ends for integral embedment within its flanges, each flanged end of the pinch valve comprises a first elastomeric annulus being located proximate the ends of the resilient composition forming the valve, the cords arranged longitudinally of the valve extending through said annulus and being turned and maintained contiguous with the surface of said annulus, a second elastomeric annulus being integrally connected to said first annulus, a pair of fabric reinforced annuluses disposed intermediate the first and second elastomeric annuluses, the strands of one fabric annulus being disposed angularly with respect to the strands of the second fabric annulus, said second elastomeric annulus being integrally connected to said first elastomeric annulus thereby embedding said longitudinal cords and the pair of fabric annuluses integrally into a flange.
Claim 9
Dependent Claim
157 words
In a reinforced pinch valve for use in controlling the flow of materials therethrough, said valve being of the type having a body portion and integrally connecting flanged ends, the body portion of the valve being Formed of a resilient composition capable of being compressed to curtail flow of materials therethrough, certain of said reinforcing cords being arranged longitudinally of the valve, and the remaining of the approximately parallel reinforcing cords being arranged circumferentially in the body portion of said valve, each flanged end of the pinch valve comprising a first elastomeric annulus being located proximate the ends of the resilient composition forming the body portion of said valve, only the incontiguous cords arranged longitudinally of the valve extending through said annulus and being turned and maintained contiguous with the surface of said annulus, a second elastomeric annulus being integrally connected to said first annulus thereby embedding the turned portion of the longitudinal cords into the flange.
Claim 10
Dependent Claim
157 words
In a reinforced pinch valve for use in controlling the flow of materials therethrough, said valve being of the type having a body portion and integrally connecting flanged ends, the body portion of the valve being Formed of a resilient composition capable of being compressed to curtail flow of materials therethrough, certain of said reinforcing cords being arranged longitudinally of the valve, and the remaining of the approximately parallel reinforcing cords being arranged circumferentially in the body portion of said valve, each flanged end of the pinch valve comprising a first elastomeric annulus being located proximate the ends of the resilient composition forming the body portion of said valve, only the incontiguous cords arranged longitudinally of the valve extending through said annulus and being turned and maintained contiguous with the surface of said annulus, a second elastomeric annulus being integrally connected to said first annulus thereby embedding the turned portion of the longitudinal cords into the flange.
Claim 11
Dependent Claim
168 words
In a reinforced pinch valve for use in controlling the flow of materials therethrough, said valve being of the type formed having a body portion formed of a resilient composition and incorporating flanged ends thereof, said valve capable of being compressed to curtail flow of materials therethrough, said valve capable of reacquiring its initial integrity after discontinance of compression, a series of reinforcing cords of which select cords are arranged approximately parallel to each other being embedded within the resilient composition forming said body portion of the valve, the parallel reinforcing cords of the valve being free of contiguous contact with each other thereby reducing the incidence of their mutual sheer when the valve is compressed, certain of said parallel reinforcing cords being arranged longitudinally of the valve, the remaining of the approximately parallel reinforcing cords being arranged circumferentially within the body portion of said valve, and only the incontiguous cords arranged longitudinally of the valve being turned at the valve ends for integral embedment within its flanges.
Claim 12
Dependent Claim
168 words
In a reinforced pinch valve for use in controlling the flow of materials therethrough, said valve being of the type formed having a body portion formed of a resilient composition and incorporating flanged ends thereof, said valve capable of being compressed to curtail flow of materials therethrough, said valve capable of reacquiring its initial integrity after discontinance of compression, a series of reinforcing cords of which select cords are arranged approximately parallel to each other being embedded within the resilient composition forming said body portion of the valve, the parallel reinforcing cords of the valve being free of contiguous contact with each other thereby reducing the incidence of their mutual sheer when the valve is compressed, certain of said parallel reinforcing cords being arranged longitudinally of the valve, the remaining of the approximately parallel reinforcing cords being arranged circumferentially within the body portion of said valve, and only the incontiguous cords arranged longitudinally of the valve being turned at the valve ends for integral embedment within its flanges.
Claim 13
Dependent Claim
78 words
The invention of claim 6 wherein each flanged end of the pinch valve comprises a first elastomeric annulus being located proximate the end of the resilient composition forming the body portion of the valve, only the cords arranged longitudinally of the valve extending through said annulus and being turned and maintained contiguous with the surface of said annulus, and a second elastomeric annulus being integrally connected to said first annulus thereby embedding said longitudinal cords into the flange.
Claim 14
Dependent Claim
164 words
In combination with a pair of valve actuators arranged diametrically of a resilient pinch valve maintained therebetween, each actuator capable of simultaneously compressing said valve approximately half of its diameter to curtail flow of materials therethrough, said actuators capable of withdrawing their compression thereby allowing said valve to reacquire its initial integrity, said valve being formed having a body portion formed of resilient composition and incorporating flanged ends, a plurality of incontiguous reinforcing cords embedded within the body portion of said valve to enhance its strength, a portion of said reinforcing cords being arranged approximately parallel to each other thereby reducing the incidence of their mutual shear, certain of said reinforcing cords being arranged longitudinally of the body portion of said valve, the remaining of the approximately parallel reinforcing cords being arranged circumferentially along the length of the body portion of said valve, and only the incontiguous cords arranged longitudinally of the valve being turned at its ends for integral embedment within its flanges.
Claim 15
Dependent Claim
164 words
In combination with a pair of valve actuators arranged diametrically of a resilient pinch valve maintained therebetween, each actuator capable of simultaneously compressing said valve approximately half of its diameter to curtail flow of materials therethrough, said actuators capable of withdrawing their compression thereby allowing said valve to reacquire its initial integrity, said valve being formed having a body portion formed of resilient composition and incorporating flanged ends, a plurality of incontiguous reinforcing cords embedded within the body portion of said valve to enhance its strength, a portion of said reinforcing cords being arranged approximately parallel to each other thereby reducing the incidence of their mutual shear, certain of said reinforcing cords being arranged longitudinally of the body portion of said valve, the remaining of the approximately parallel reinforcing cords being arranged circumferentially along the length of the body portion of said valve, and only the incontiguous cords arranged longitudinally of the valve being turned at its ends for integral embedment within its flanges.
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) | 1975-10-03 | 1976-04-03 | 1976-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-03 | 1980-04-03 | 1980-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-03 | 1984-04-03 | 1984-10-03 | $7700.00 | Window Closed / Lapsed |