Patent US3726313A successfully refreshed from Google Patents.
US3726313A
Expired / Lapsed
US
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Reciprocating valve
Assignee: Aquamatic Inc
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Filing: 1971-07-06
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Granted: 1973-04-10
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Expires: 1991-07-06
Abstract
Abstract The principles of a roller-band device are applied to a valve. The valve has outlet openings nearly as large as the width of the band. A grid is provided in the outlet openings to support the and when closed. The grid is recessed and a peripheral recess is provided around the outlet openings. The recess has a sharp edge against which the band seals.
Inventors
- 👤 V Pandya
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:37
CPC Classifications
F; F16; F16K; F16K11/00; F16K11/02; F16K11/022; F16K7/00; F16K7/18; Y; Y10; Y10S; Y10S251/00; Y10S251/901; Y10T; Y10T137/00; Y10T137/8593; Y10T137/877; Y10T137/87708; Y10T137/87716; Y10T137/87788; Y10T137/87829; Y10T137/87837; Y10T137/87893
Claims Analysis
Total Claims: 38
Claim 1
Independent Claim
248 words
A reciprocating valve comprising, in combination: a hollow valve body having inner surfaces defining opposed longitudinal guideways; an inlet port communicating with the hollow valve body for feeding fluid thereto; an outlet port communicating with the hollow valve body through one of the guideways; a flexible, longitudinal, resilient band having end portions affixed to the respective guideways and a central portion disposed in an S-type configuration between the guideways; a pair of generally cylindrical roller members each positioned and constrained within one of the open curves of the S-type configuration on opposite sides of the band; said guideways providing support for the band as the roller members bear outwardly against the band, and the roller members being constrained Thereby to roll in the longitudinal direction only; means connected to one of the roller members to move the rollers in the longitudinal direction and move the band between a position closing the out-let port and a position opening the outlet port to permit fluid to flow therethrough; the outlet port extending across a major portion of the width of the band; a recess extending around the periphery of the outlet port and into which the flexible band is depressed in the closed position; a sharp edge between the recess and the guideway at the guideway surface against which the band seals in the closed position; and means in the outlet port at about the level of the bottom of the recess for supporting the band in the closed position.
Claim 2
Dependent Claim
248 words
A reciprocating valve comprising, in combination: a hollow valve body having inner surfaces defining opposed longitudinal guideways; an inlet port communicating with the hollow valve body for feeding fluid thereto; an outlet port communicating with the hollow valve body through one of the guideways; a flexible, longitudinal, resilient band having end portions affixed to the respective guideways and a central portion disposed in an S-type configuration between the guideways; a pair of generally cylindrical roller members each positioned and constrained within one of the open curves of the S-type configuration on opposite sides of the band; said guideways providing support for the band as the roller members bear outwardly against the band, and the roller members being constrained Thereby to roll in the longitudinal direction only; means connected to one of the roller members to move the rollers in the longitudinal direction and move the band between a position closing the out-let port and a position opening the outlet port to permit fluid to flow therethrough; the outlet port extending across a major portion of the width of the band; a recess extending around the periphery of the outlet port and into which the flexible band is depressed in the closed position; a sharp edge between the recess and the guideway at the guideway surface against which the band seals in the closed position; and means in the outlet port at about the level of the bottom of the recess for supporting the band in the closed position.
Claim 3
Dependent Claim
45 words
A reciprocating valve as set forth in claim 1 including a second outlet port communicating with the hollow valve body through the other guideway and so constructed and arranged that the band closes the first outlet port when the second is opened and vice versa.
Claim 4
Dependent Claim
22 words
A reciprocating valve as set forth in claim 1 wherein the last-mentioned means includes at least one rib across the outlet port.
Claim 5
Dependent Claim
25 words
A reciprocating valve as set forth in claim 3 where there are a plurality of ribs extending across the outlet port in the longitudinal direction.
Claim 6
Dependent Claim
169 words
A valve comprising, in combination: a plurality of rotatable members; a hollow valve body having a pair of longitudinally extending internal guideways spaced apart a distance less than the sum of the diameters of the rotatable members; an inlet port communicating with the hollow valve body for feeding fluid thereto; an outlet port communicating with the hollow valve body through one of the guideways; a flexible band supported between the guideways and having a portion disposed between and partially encompassing adjacent rotatable members in a generally S-shaped configuration; said band having an end portion secured to the valve body adjacent one guideway and another end portion secured adjacent the other guideway; means urging the rotatable members longitudinally of the valve body to move the band between a position closing the outlet port and a position opening the outlet port to permit fluid flow therethrough; and a recess surrounding the outlet port and having a sharp edge at the guideway surface against which the band seals in the closed position.
Claim 7
Dependent Claim
169 words
A valve comprising, in combination: a plurality of rotatable members; a hollow valve body having a pair of longitudinally extending internal guideways spaced apart a distance less than the sum of the diameters of the rotatable members; an inlet port communicating with the hollow valve body for feeding fluid thereto; an outlet port communicating with the hollow valve body through one of the guideways; a flexible band supported between the guideways and having a portion disposed between and partially encompassing adjacent rotatable members in a generally S-shaped configuration; said band having an end portion secured to the valve body adjacent one guideway and another end portion secured adjacent the other guideway; means urging the rotatable members longitudinally of the valve body to move the band between a position closing the outlet port and a position opening the outlet port to permit fluid flow therethrough; and a recess surrounding the outlet port and having a sharp edge at the guideway surface against which the band seals in the closed position.
Claim 8
Dependent Claim
44 words
A valve as set forth in claim 5 including a second outlet port communicating with the hollow valve body through the other guideway and so constructed and arranged that the band closes the first outlet port when the second is opened and vice versa.
Claim 9
Dependent Claim
17 words
A valve as set forth in claim 5 wherein the recess is generally parallel to the guideway.
Claim 10
Dependent Claim
28 words
A valve as set forth in claim 7 wherein the recess is in the range of about 0.01 to 0.15 inch below the surface of the adjacent guideway.
Claim 11
Dependent Claim
28 words
A valve as set forth in claim 8 including means in the outlet port at the level of the recess for supporting the band in the closed position.
Claim 12
Dependent Claim
20 words
A valve as set forth in claim 9 wherein the means in the outlet port include a plurality of ribs.
Claim 13
Dependent Claim
155 words
A valve including: a hollow valve body having spaced apart guideways; a plurality of rotatable members intermediate the walls and movable longitudinally thereof; said rotatable members having a combined cross-sectional dimension greater than the spacing between the guideways; a flexible band looped in a generally S-shaped configuration about adjacent rotatable members; said band having one end portion secured to the valve body adjacent one guideway and another end portion secured adjacent the other guideway; feed means for feeding fluid under pressure to the hollow valve body; an outlet port communicating with the hollow valve body through one of the guideways; means for moving the rotatable members to move the band across the outlet port to close the same; support means in the outlet port at a level recessed from the aDjacent guideway for supporting the band in the closed position; and a recess surrounding the outlet port at about the level of the support means.
Claim 14
Dependent Claim
155 words
A valve including: a hollow valve body having spaced apart guideways; a plurality of rotatable members intermediate the walls and movable longitudinally thereof; said rotatable members having a combined cross-sectional dimension greater than the spacing between the guideways; a flexible band looped in a generally S-shaped configuration about adjacent rotatable members; said band having one end portion secured to the valve body adjacent one guideway and another end portion secured adjacent the other guideway; feed means for feeding fluid under pressure to the hollow valve body; an outlet port communicating with the hollow valve body through one of the guideways; means for moving the rotatable members to move the band across the outlet port to close the same; support means in the outlet port at a level recessed from the aDjacent guideway for supporting the band in the closed position; and a recess surrounding the outlet port at about the level of the support means.
Claim 15
Dependent Claim
17 words
The combination of claim 11 wherein the level of the support means is parallel to the guideway.
Claim 16
Dependent Claim
32 words
The combination of claim 11 wherein the feed means includes an inlet port at one lateral side of the valve body; and including means for providing lateral side support for the band.
Claim 17
Dependent Claim
22 words
The combination of claim 13 wherein the means for providing lateral side support includes guide rails at the sides of each guideway.
Claim 18
Dependent Claim
20 words
The combination of claim 13 including a second outlet port communicating with the hollow valve body through the other guideway.
Claim 19
Dependent Claim
186 words
A three-way valve comprising: a hollow valve body having spaced apart guideways; a pair of rotatable members intermediate the walls and movable longitudinally thereof; the rotatable members having a combined cross-sectional dimension greater than the spacing between the guideways; a flexible band looped in a generally S-shaped configuration about adjacent rotatable members; said band having one end portion secured to the valve body adjacent one guideway and another end portion secured adjacent the other guideway; feed means for feeding fluid under pressure to the hollow valve body; a first outlet port communicating with the hollow valve body through one of the guideways; a second outlet port communicating with the hollow valve body through the other of the guideways; means for moving the rotatable members to selectively move the band across one outlet port to close the same while uncovering the other outlet port to open the same; whereby the valve selectively directs the fluid to one of the outlet ports; a recess surrounding each outlet port; and each recess having a sharp edge at the guideway surface against which the band seals in the closed position.
Claim 20
Dependent Claim
186 words
A three-way valve comprising: a hollow valve body having spaced apart guideways; a pair of rotatable members intermediate the walls and movable longitudinally thereof; the rotatable members having a combined cross-sectional dimension greater than the spacing between the guideways; a flexible band looped in a generally S-shaped configuration about adjacent rotatable members; said band having one end portion secured to the valve body adjacent one guideway and another end portion secured adjacent the other guideway; feed means for feeding fluid under pressure to the hollow valve body; a first outlet port communicating with the hollow valve body through one of the guideways; a second outlet port communicating with the hollow valve body through the other of the guideways; means for moving the rotatable members to selectively move the band across one outlet port to close the same while uncovering the other outlet port to open the same; whereby the valve selectively directs the fluid to one of the outlet ports; a recess surrounding each outlet port; and each recess having a sharp edge at the guideway surface against which the band seals in the closed position.
Claim 21
Dependent Claim
20 words
A three-way valve as set forth in claim 16 including means for urging the rotatable members toward an initial position.
Claim 22
Dependent Claim
17 words
A three-way valve as set forth in claim 16 wherein the rotatable members have a cylindrical exterior.
Claim 23
Dependent Claim
17 words
A three-way valve as set forth in claim 16 wherein the guideways are parallel to each other.
Claim 24
Dependent Claim
24 words
A three-way valve as set forth in claim 16 including support means in each outlet port for supporting the band in the closed position.
Claim 25
Dependent Claim
36 words
A three-way valve as set forth in claim 16 wherein the feed means includes an inlet port at one lateral side of the valve body; and including means for providing lateral side support for the band.
Claim 26
Dependent Claim
172 words
A valve including: a hollow valve body having spaced apart guideways; a plurality of rotatable members intermediate the walls and movable longitudinally thereof; said rotatable members having a combined cross-sectional dimension greater than the spacing between the guideways; a flexible band looped in a generally S-shaped configuration about adjacent rotatable members; said band having one end portion secured to the valve body adjacent one guideway and another end portion secured adjacent the other guideway; an inlet port communicating with the hollow valve body for feeding fluid under pressure thereto; an outlet port communicating with the hollow valve body through said one guideway; means for moving the rotatable members to move the band across the outlet port to close the same; means defining s sharp edge surrounding the outlet port and at the one guideway surface for sealing against the band in the closed position; and support means in the outlet port at a level recessed from the sharp edge and the one guideway surface for supporting the band in the closed position.
Claim 27
Dependent Claim
172 words
A valve including: a hollow valve body having spaced apart guideways; a plurality of rotatable members intermediate the walls and movable longitudinally thereof; said rotatable members having a combined cross-sectional dimension greater than the spacing between the guideways; a flexible band looped in a generally S-shaped configuration about adjacent rotatable members; said band having one end portion secured to the valve body adjacent one guideway and another end portion secured adjacent the other guideway; an inlet port communicating with the hollow valve body for feeding fluid under pressure thereto; an outlet port communicating with the hollow valve body through said one guideway; means for moving the rotatable members to move the band across the outlet port to close the same; means defining s sharp edge surrounding the outlet port and at the one guideway surface for sealing against the band in the closed position; and support means in the outlet port at a level recessed from the sharp edge and the one guideway surface for supporting the band in the closed position.
Claim 28
Dependent Claim
31 words
A valve according to claim 22 in which the inlet port is at one lateral side of the flexible band; and including structure for providing lateral side support for the band.
Claim 29
Dependent Claim
28 words
A valve according to claim 23 in which the structure for providing lateral side support for the band includes a guide rail at each side of each guideway.
Claim 30
Dependent Claim
54 words
A valve according to cLaim 22 including a second outlet port communicating with the hollow valve body through the other guideway, and so constructed and arranged that the band closes the first outlet port when the second is opened and vice versa, whereby the valve selectively directs fluid to one of the outlet ports.
Claim 31
Dependent Claim
23 words
A valve according to claim 25 including means for urging the rotatable members toward an initial position covering one of the outlet ports.
Claim 32
Dependent Claim
21 words
A valve according to claim 25 including means in the second outlet port for supporting the band in the closed position.
Claim 33
Dependent Claim
32 words
A valve according to claim 27 including means defining a sharp edge surrounding the second outlet port and at said other guideway surface for sealing against the band in the closed position.
Claim 34
Dependent Claim
110 words
A valve including: a hollow valve body having a guideway on the inner surface thereof; an inlet port communicating with the hollow valve body for feeding fluid thereto; an outlet port communicating with the hollow valve body through the guideway; a flexible band disposed within the hollow valve body and having a portion overlying the outlet port in a closed position; means for moving the flexible band between said closed position and a removed position to open the outlet port to permit fluid flow therethrough; and a recess surrounding the outlet port and having a sharp edge at the guideway surface against which the band seals in the closed position.
Claim 35
Dependent Claim
110 words
A valve including: a hollow valve body having a guideway on the inner surface thereof; an inlet port communicating with the hollow valve body for feeding fluid thereto; an outlet port communicating with the hollow valve body through the guideway; a flexible band disposed within the hollow valve body and having a portion overlying the outlet port in a closed position; means for moving the flexible band between said closed position and a removed position to open the outlet port to permit fluid flow therethrough; and a recess surrounding the outlet port and having a sharp edge at the guideway surface against which the band seals in the closed position.
Claim 36
Dependent Claim
33 words
A valve as set forth in claim 29 and including support means in the outlet port at the level of the bottom of the recess for supporting the band in the closed position.
Claim 37
Dependent Claim
30 words
A valve as set forth in claim 30 in which the bottom of the recess and the top of the support means are coplanar and parallel to the adjacent guideway.
Claim 38
Dependent Claim
32 words
A valve as set forth in claim 31 in which the bottom of the recess is in the range of about 0.01 to 0.15 inch below the surface of the adjacent guideway.
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) | 1976-04-09 | 1976-10-09 | 1977-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-09 | 1980-10-09 | 1981-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-09 | 1984-10-09 | 1985-04-10 | $7700.00 | Window Closed / Lapsed |