US3860034A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slide valve
Assignee: HOUDAILLE WARREN RUPP Inc
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Filing: 1973-06-28
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Granted: 1975-01-14
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Expires: 1993-06-28
Abstract
Abstract An air-operated double diaphragm pump having a pair of power fluid chambers and a control valve for directing air alternately to each chamber while permitting air to exhaust from the other chamber. The valve includes an elongated member and a second member slidably mounted in fluid tight sealing contact on an elongated member. A flexible conduit is connected at one end to a port in the slidable member and at its other end to a source of fluid under pressure. In one valve position the slidable member establishes a fluid supply path from the flexible conduit through the port in the slidable member in alignment with a port in the elongated member communicating only with one power fluid chamber, and a fluid exhaust path through another port in the elongated member communicating only with the second power fluid chamber of the pump and the atmosphere. In a second position a fluid supply path is established to the second power fluid chamber through the port in the slidable member and the other port in the elongated member, and a fluid exhaust path from the first power fluid chamber through the first port in the elongated member to the atmosphere. In intermediate position of the slidable member no fluid paths are provided. A link arrangement operated by reciprocations of the pump rapidly moves the slidable member to and between these positions.
Inventors
- 👤 Warren E Rupp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:35
CPC Classifications
F; F04; F04B; F04B43/00; F04B43/02; F04B43/06; F04B43/073; F04B43/0736; F01; F01L; F01L23/00; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86574; Y10T137/8667; Y10T137/86694; Y10T137/86702
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
245 words
A fluid control valve comprising a first member fixed with respect to a support and having an outer slide surface and an internal fluid passage communicating with a port in said slide surface and also with an opening in said first member spaced longitudinally a substantial distance from said port in said first member, a second member slidably mounted on said slide surface of said first member and having a port adapted to be put into communication with said port in said first member in fluidtight sealing engagement, and a flexible conduit secured at one end to said second member and communicating with said port in saId second member and having a portion spaced from said one end and carried by said support, said flexible conduit being adapted to communicate at its other end with a source of fluid under superatmospheric pressure, whereby said second member may be slidably positioned on said slide surface of said first member in a first position in which said port of said first member and only said port of said second member are in communication and provide a fluid path extending through said flexible conduit and said ports and through said passage and said opening in said first member, and also in a second position in which said ports do not communicate and which provides a fluid path extending through said opening, and through said passage and said port of said first member and outside of said flexible conduit.
Claim 2
Dependent Claim
245 words
A fluid control valve comprising a first member fixed with respect to a support and having an outer slide surface and an internal fluid passage communicating with a port in said slide surface and also with an opening in said first member spaced longitudinally a substantial distance from said port in said first member, a second member slidably mounted on said slide surface of said first member and having a port adapted to be put into communication with said port in said first member in fluidtight sealing engagement, and a flexible conduit secured at one end to said second member and communicating with said port in saId second member and having a portion spaced from said one end and carried by said support, said flexible conduit being adapted to communicate at its other end with a source of fluid under superatmospheric pressure, whereby said second member may be slidably positioned on said slide surface of said first member in a first position in which said port of said first member and only said port of said second member are in communication and provide a fluid path extending through said flexible conduit and said ports and through said passage and said opening in said first member, and also in a second position in which said ports do not communicate and which provides a fluid path extending through said opening, and through said passage and said port of said first member and outside of said flexible conduit.
Claim 3
Dependent Claim
28 words
A control valve as in claim 1 wherein said first member is elongated and said opening of said passage is located adjacent an end of said first member.
Claim 4
Dependent Claim
52 words
A control valve as in claim 2 wherein said passage in said first member has an outer end adjacent an outer end of said first member and also an inner end spaced from said outer end and wherein said port in said first member communicates with said passage at its inner end.
Claim 5
Dependent Claim
31 words
A control valve as in claim 1 in which said first member and said second member include means cooperating to prevent transverse movement of said second member on said first member.
Claim 6
Dependent Claim
15 words
A control valve as in claim 1 in which said outer slide surface is flat.
Claim 7
Dependent Claim
81 words
A control valve as in claim 4 in which said slide surface is on a portion of said first member of uniform cross section which is shaped in cross section, and the portion of the surface of said second member that slidably engages said portion of uniform cross section of said first member is shaped in cross section to engage the cross section of said first member, so that said second member is prevented from transverse movement on said first member.
Claim 8
Dependent Claim
40 words
A control valve as in claim 6 wherein said first member is rectangular in cross section over a substantial length and has flat surfaces defining said length, and said first port comprises an opening in one of said flat surfaces.
Claim 9
Dependent Claim
19 words
A control valve as in claim 6 in which said second member extends substantially completely around said first member.
Claim 10
Dependent Claim
103 words
A control valve as claimed in claim 1 wherein said first member has a second fluid passage isolated from said first passage with a second port in said slide surface and with a second opening spaced longitudinally a substantial distance from said second port, said port in said second member being adapted to be put into communication with said second port of said first member when said second member is in a second position to establish a fluid path through said flexible conduit, of said communicating port of said second port and said second port of said first member, and said second opening.
Claim 11
Dependent Claim
49 words
A control valve as claimed in claim 9 where when said second member is in said second position said first and second members establish a fluid path extending through said first opening, said first passage and said first port in said first member and outside of said flexible conduit.
Claim 12
Dependent Claim
161 words
A control valve comprising an elongated member having two oppositely longitudinally extending fluid passages isolated from each other, each passage terminating at its outer end in a separate opening and having a separate port in the surface of said elongated member, a slidable member slidably mounted on said elongated member in fluid-tight sealing engagement therewith, said slidable member having a port, and a flexible conduit secured at one end to said slidable member and communicating with said port in said slidable member and adapted to be connected at its other end to a source of fluid under a pressure different from that of the atmosphere, said slidable member being slidable on said elongated member from and to a first position in which said port in said slidable member is aligned with one port of said elongated member to and from a second position in which said port in said slidable member is aligned with the other port of said elongated member.
Claim 13
Dependent Claim
161 words
A control valve comprising an elongated member having two oppositely longitudinally extending fluid passages isolated from each other, each passage terminating at its outer end in a separate opening and having a separate port in the surface of said elongated member, a slidable member slidably mounted on said elongated member in fluid-tight sealing engagement therewith, said slidable member having a port, and a flexible conduit secured at one end to said slidable member and communicating with said port in said slidable member and adapted to be connected at its other end to a source of fluid under a pressure different from that of the atmosphere, said slidable member being slidable on said elongated member from and to a first position in which said port in said slidable member is aligned with one port of said elongated member to and from a second position in which said port in said slidable member is aligned with the other port of said elongated member.
Claim 14
Dependent Claim
21 words
The apparatus of claim 1, comprising over-the-center means for moving said second member between said two positions on said first member.
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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) | 1978-01-13 | 1978-07-15 | 1979-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-13 | 1982-07-15 | 1983-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-13 | 1986-07-15 | 1987-01-14 | $7700.00 | Window Closed / Lapsed |