US3768771A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid control valve with improved diaphragm
Assignee: General Electric Co
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Filing: 1971-11-12
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Granted: 1973-10-30
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Expires: 1991-11-12
Abstract
Abstract A fluid control valve, of the type utilizing pressure differential across a diaphragm as the controlling parameter, is provided with a flexible diaphragm which is mounted so as to be substantially limited to flexing in a single direction. Consequent distension of the diaphragm is likewise substantially limited to a single direction. A bleed hole in the diaphragm is provided for passing pressurized fluid between the surfaces of the diaphragm for the creation of a pressure differential thereacross. The bleed hole is elongated and preferably oblong in perimeter and is oriented with its minor axis in substantial alignment with the direction of distension so that as the diaphragm material is stretched, the shape of the bleed hole becomes more nearly circular.
Inventors
- 👤 J Dicken
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:52
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/12; F16K31/36; F16K31/40; F16K31/402; F16K31/404; Y; Y10; Y10T; Y10T137/00; Y10T137/4238; Y10T137/4245; Y10T137/4273
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
132 words
In a valve for controlling fluid flow within a passage, the valve including a valve seat in the passage and a flexible diaphragm for seating upon the valve seat, the diaphragm having a first aperture therein and further having a predetermined predominant direction of distension, the valve further including a chamber substantially isolated from the passage and means for unseating the diaphragm responsive to selective communication between the passage and the chamber through the first aperture, the improvement comprising: a second aperture in the diaphragm providing communication between the passage and the chamber, said second aperture being of smaller area than the area of the first aperture, the second aperture further having an oblong perimetrical configuration and being oriented with its minor axis in substantial alignment with the predominant direction of distension.
Claim 2
Dependent Claim
132 words
In a valve for controlling fluid flow within a passage, the valve including a valve seat in the passage and a flexible diaphragm for seating upon the valve seat, the diaphragm having a first aperture therein and further having a predetermined predominant direction of distension, the valve further including a chamber substantially isolated from the passage and means for unseating the diaphragm responsive to selective communication between the passage and the chamber through the first aperture, the improvement comprising: a second aperture in the diaphragm providing communication between the passage and the chamber, said second aperture being of smaller area than the area of the first aperture, the second aperture further having an oblong perimetrical configuration and being oriented with its minor axis in substantial alignment with the predominant direction of distension.
Claim 3
Dependent Claim
138 words
In a valve for controlling fluid flow within a passage, the valve including a valve seat within the passage and a chamber substantially isolated from the passage, the improvement comprising: a flexible diaphragm for seating upon the valve seat, the diaphragm having a first aperture therein for providing communication between the passage and the chamber, the diaphragm further having a predetermined predominant direction of distension, and including a second aperture providing communication between the passage and the chamber and having a predetermined area smaller than the area of the first aperture, the second aperture having an oblong perimetrical configuration and being oriented with its minor axis in substantial alignment with the predominant direction of distension; and means for unseating the diaphragm from the seat responsive to selective communication between the passage and the chamber through the first aperture.
Claim 4
Dependent Claim
138 words
In a valve for controlling fluid flow within a passage, the valve including a valve seat within the passage and a chamber substantially isolated from the passage, the improvement comprising: a flexible diaphragm for seating upon the valve seat, the diaphragm having a first aperture therein for providing communication between the passage and the chamber, the diaphragm further having a predetermined predominant direction of distension, and including a second aperture providing communication between the passage and the chamber and having a predetermined area smaller than the area of the first aperture, the second aperture having an oblong perimetrical configuration and being oriented with its minor axis in substantial alignment with the predominant direction of distension; and means for unseating the diaphragm from the seat responsive to selective communication between the passage and the chamber through the first aperture.
Claim 5
Dependent Claim
149 words
In a valve for controlling fluid flow within a passage, the valve including a valve seat within the passage and a chamber substantially isolated from the passage, the improvement comprising: a substantially circular flexible diaphragm for seating upon the valve seat, said diaphragm having a first aperture disposed proximate its center for providing communication between the passage and the chamber, the diaphragm further having a predetermined predominant radial direction of distension, and including a second aperture radially spaced from the first aperture for providing communication between the passage and the chamber and having a predetermined area smaller than the area of the first aperture, the second aperture having an elongated perimetrical configuration and having a minor axis oriented in substantial alignment with the direction of distension; and means for unseating the diaphragm from the seat responsive to selective communication between the passage and the chamber through the first aperture.
Claim 6
Dependent Claim
149 words
In a valve for controlling fluid flow within a passage, the valve including a valve seat within the passage and a chamber substantially isolated from the passage, the improvement comprising: a substantially circular flexible diaphragm for seating upon the valve seat, said diaphragm having a first aperture disposed proximate its center for providing communication between the passage and the chamber, the diaphragm further having a predetermined predominant radial direction of distension, and including a second aperture radially spaced from the first aperture for providing communication between the passage and the chamber and having a predetermined area smaller than the area of the first aperture, the second aperture having an elongated perimetrical configuration and having a minor axis oriented in substantial alignment with the direction of distension; and means for unseating the diaphragm from the seat responsive to selective communication between the passage and the chamber through the first aperture.
Claim 7
Dependent Claim
17 words
The valve of claim 3 wherein the oblong perimetrical configuration of the second aperture is substantially oval.
Claim 8
Dependent Claim
109 words
A flexible diaphragm for use in a valve, the diaphragm having a predetermined predominant direction of distention, and comprising: a first generally centrally located aperture therein; a second aperture adapted to remain open during distention and disposed radially outward a predetermined distance from the first aperture and having a predetermined smaller area than the area of the first aperture; and said second aperture having a generally non-circular and elongated perimetrical configuration and being oriented with its minor axis in substantial alignment with the predominant direction of distension such that distention of the diaphragm tends to distort the configuration of said second aperture such that it becomes more nearly circular.
Claim 9
Dependent Claim
109 words
A flexible diaphragm for use in a valve, the diaphragm having a predetermined predominant direction of distention, and comprising: a first generally centrally located aperture therein; a second aperture adapted to remain open during distention and disposed radially outward a predetermined distance from the first aperture and having a predetermined smaller area than the area of the first aperture; and said second aperture having a generally non-circular and elongated perimetrical configuration and being oriented with its minor axis in substantial alignment with the predominant direction of distension such that distention of the diaphragm tends to distort the configuration of said second aperture such that it becomes more nearly circular.
References Cited (Backward Citations)
US3103338A
Cited
US3308798A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-29 | 1977-04-30 | 1977-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-29 | 1981-04-30 | 1981-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-29 | 1985-04-30 | 1985-10-30 | $7700.00 | Window Closed / Lapsed |