Patent DE533476C successfully refreshed from Google Patents.
Patent US3826461A successfully refreshed from Google Patents.
US3826461A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valves
Assignee: Individual
•
Filing: 1972-11-24
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Granted: 1974-07-30
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Expires: 1992-11-24
Abstract
Abstract A pinch valve casing having two passages which in general define a T-shape, the casing being in two identical halves which are pivotally interconnected and can be opened for insertion or removal of a pinch tube. The casing preferably is provided at each end with a removable collar which forms its connection with the casing parts by the closing of the casing and can be removed by the opening of the casing.
Inventors
- 👤 F Summerfield
- 👤 A Unthank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:04
CPC Classifications
F; F16; F16K; F16K7/00; F16K7/12; F16K7/123
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
192 words
A pinch valve comprising: a. a casing in the form of a pair of separable mating body parts which together define a hollow T-shaped body, having coextensive arms terminating in opposite end portions and a leg intersecting said arms, b. said body having a first bore coextensive with said arms and a second bore coextensive within said leg and intersecting said first bore, c. means holding said body parts together, d. a flexible tube of substantially the same dimensions as the first bore and located substantially coextensively within said first bore, e. means for moving the valve closure member toward and away from pinching engagement with said flexible tube, f. a coupling collar for each end portion, g. at least a portion of each coupling collar being mounted within the corresponding end portion of said first bore, and receiving an end of said flexible tube, h. first interfitting means within the opposite end portions of said first bore, i. second interfitting means on each of said collar portions cooperatively engaging said first interfitting means, j. said interfitting means being disengageable only upon separation of said body parts for removal of said collars.
Claim 2
Dependent Claim
192 words
A pinch valve comprising: a. a casing in the form of a pair of separable mating body parts which together define a hollow T-shaped body, having coextensive arms terminating in opposite end portions and a leg intersecting said arms, b. said body having a first bore coextensive with said arms and a second bore coextensive within said leg and intersecting said first bore, c. means holding said body parts together, d. a flexible tube of substantially the same dimensions as the first bore and located substantially coextensively within said first bore, e. means for moving the valve closure member toward and away from pinching engagement with said flexible tube, f. a coupling collar for each end portion, g. at least a portion of each coupling collar being mounted within the corresponding end portion of said first bore, and receiving an end of said flexible tube, h. first interfitting means within the opposite end portions of said first bore, i. second interfitting means on each of said collar portions cooperatively engaging said first interfitting means, j. said interfitting means being disengageable only upon separation of said body parts for removal of said collars.
Claim 3
Dependent Claim
45 words
The invention according to claim 1 in which the separable mating body parts are identical, and further including hinge means for securing adjoining edges of said body parts for swinging movement about a longitudinal axis lying in the plane of symmetry of said body parts.
Claim 4
Dependent Claim
40 words
The invention according to claim 1 in which one of said interfitting means comprises a groove and the other of said interfitting means comprises a radial projection adapted to be received in said groove when said body parts are together.
Claim 5
Dependent Claim
32 words
The invention according to claim 3 in which said first interfitting means comprises said groove within at least one of said body parts, and said second interfitting means comprises said radial projection.
Claim 6
Dependent Claim
45 words
The invention according to claim 4 in which said groove is formed circumferentially in both said body parts, and said radial projection comprises a circumferential rim projecting radially outward from each of said collars fitting within said circumferential groove when said body parts are together.
Claim 7
Dependent Claim
41 words
The invention according to claim 5 further comprising a key projecting radially from said groove and a key slot in said rim receiving said key when said body parts are together, to prevent rotation of said collar relative to said body.
Claim 8
Dependent Claim
43 words
The invention according to claim 1 in which said flexible tube has at least one end portion flanged over the outer face of the adjacent collar for sealing engagement with an opposed face of the adjacent end of an aligned medium carrying pipe.
Claim 9
Dependent Claim
23 words
The invention according to claim 1 comprising means normally urging said valve closure member to an inoperative position away from said flexible tube.
Claim 10
Dependent Claim
40 words
The invention according to claim 7 in which each of said collars has an outer end, a circular recess in said outer end, the extremity of the flanged end portion of said flexible tube being received in said circular recess.
Claim 11
Dependent Claim
150 words
A pinch valve casing comprising: a. a pair of complementary T-shaped mating body halves, each body half being identical to the other body half, b. hinge means securing adjoining edges of said body halves for swinging movement about a longitudinal axis lying in the plane of symmetry of said body halves for movement to a closed position forming a T-shaped body, and for movement apart to an open position, c. said body halves, in closed position, providing a first longitudinal bore coextensive with the arms of the T-shaped body, having opposite end portions and adapted to receive therein an elongated, substantially coextensive flexible tube, d. said body halves, in closed position, further defining a second bore coextensive with the leg of the T-shaped body, intercepting said first bore, and adapted to receive therein a movable valve closure member for pinching and closing a flexible tube received within said first bore.
Claim 12
Dependent Claim
150 words
A pinch valve casing comprising: a. a pair of complementary T-shaped mating body halves, each body half being identical to the other body half, b. hinge means securing adjoining edges of said body halves for swinging movement about a longitudinal axis lying in the plane of symmetry of said body halves for movement to a closed position forming a T-shaped body, and for movement apart to an open position, c. said body halves, in closed position, providing a first longitudinal bore coextensive with the arms of the T-shaped body, having opposite end portions and adapted to receive therein an elongated, substantially coextensive flexible tube, d. said body halves, in closed position, further defining a second bore coextensive with the leg of the T-shaped body, intercepting said first bore, and adapted to receive therein a movable valve closure member for pinching and closing a flexible tube received within said first bore.
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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) | 1977-07-29 | 1978-01-28 | 1978-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-29 | 1982-01-28 | 1982-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-29 | 1986-01-28 | 1986-07-30 | $7700.00 | Window Closed / Lapsed |