US3586040A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve means
Assignee: CONSTRUCTION MACHINERY CO
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Filing: 1969-11-06
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Granted: 1971-06-22
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Expires: 1989-11-06
Abstract
Abstract An air bleed valve for a pump including a housing having an intake opening in communication with the pump and a discharge opening. A conduit extends between the intake and discharge openings and has a normally open valve means provided therein which is adapted to close the conduit upon a predetermined pressure differential existing in the discharge and intake openings.
Inventors
- 👤 Leonard L Urback
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:56
CPC Classifications
F; F16; F16K; F16K15/00; F16K15/14; F16K15/144; F16K15/147; F04; F04D; F04D9/00; F04D9/004; F04D9/006; F16K15/1472; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7869; Y10T137/7879; Y10T137/788
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
348 words
An air bleed valve for a pump, a housing means comprising first and second housing elements attachably secured together, said first housing element having first and second end portions and a first compartment area formed therebetween, said first end portion of said first housing element defining an intake opening adapted to be connected to a pump, said second housing element having a discharge opening formed therein in communication with the atmosphere, a valve means in said housing comprised of resilient material, said valve means comprising a base portion having a peripheral edge portion positioned between said second end of said first housing element and one of the ends of said second housing element, and a hollow throat portion in said first compartment area extending towards said intake opening, saId throat portion being elliptically shaped in cross section along its substantial length and terminating adjacent said intake opening in an elliptically shaped normally open intake opening having arcuate upper and lower lip portions, said valve means providing the sole means of communication between the intake and discharge openings of said first and second housing elements whereby said throat portion will be deformed to cause said lip portions to close on each other to close the intake opening of said valve means whenever the pressure in said first compartment area attains a predetermined value greater than the pressure in said second compartment area, and a backing plate mounted adjacent said base portion of said valve means to prevent said throat portion from assuming an inverted position with respect to its normal position of extending towards the intake opening in said first housing element said backing plate having a peripheral edge portion positioned between said second end of said first housing element and said one end of said second housing element, and means securing said first and second housing elements together so that said peripheral edge portion of said valve means and said peripheral edge portion of said backing plate are rigidly secured between said second end of said first housing element and said one end of said second housing element.
Claim 2
Dependent Claim
348 words
An air bleed valve for a pump, a housing means comprising first and second housing elements attachably secured together, said first housing element having first and second end portions and a first compartment area formed therebetween, said first end portion of said first housing element defining an intake opening adapted to be connected to a pump, said second housing element having a discharge opening formed therein in communication with the atmosphere, a valve means in said housing comprised of resilient material, said valve means comprising a base portion having a peripheral edge portion positioned between said second end of said first housing element and one of the ends of said second housing element, and a hollow throat portion in said first compartment area extending towards said intake opening, saId throat portion being elliptically shaped in cross section along its substantial length and terminating adjacent said intake opening in an elliptically shaped normally open intake opening having arcuate upper and lower lip portions, said valve means providing the sole means of communication between the intake and discharge openings of said first and second housing elements whereby said throat portion will be deformed to cause said lip portions to close on each other to close the intake opening of said valve means whenever the pressure in said first compartment area attains a predetermined value greater than the pressure in said second compartment area, and a backing plate mounted adjacent said base portion of said valve means to prevent said throat portion from assuming an inverted position with respect to its normal position of extending towards the intake opening in said first housing element said backing plate having a peripheral edge portion positioned between said second end of said first housing element and said one end of said second housing element, and means securing said first and second housing elements together so that said peripheral edge portion of said valve means and said peripheral edge portion of said backing plate are rigidly secured between said second end of said first housing element and said one end of said second housing element.
References Cited (Backward Citations)
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Cited
US2174960A
Cited
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Cited
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Cited
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Cited
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Cited
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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) | 1974-06-21 | 1974-12-21 | 1975-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-21 | 1978-12-21 | 1979-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-21 | 1982-12-21 | 1983-06-22 | $7700.00 | Window Closed / Lapsed |