US3626982A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluidic control device
Assignee: Individual
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Filing: 1970-03-09
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Granted: 1971-12-14
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Expires: 1990-03-09
Abstract
Abstract For use in controlling fluid pressure, two pressure sources, one being connected with the pressure to be controlled and the other connected with a known pressure, the two pressures being applied to the opposite sides of a relatively large diaphragm which deflects in response to pressure variations, there being a thin rodlike member secured to the diaphragm and extending therefrom, the thin rodlike member carrying a pair of deflectors in proximity of jets from fluidic devices which note the presence or absence thereof, the fluidic devices being connected with a control system for operation in response to movement of the diaphragm.
Inventors
- 👤 Thomas F Mcduffie
- 👤 Neal G Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:18
CPC Classifications
G; G05; G05D; G05D16/00; G05D16/14; G05D16/18; Y; Y10; Y10T; Y10T137/00; Y10T137/2278; Y10T137/2322; Y10T137/8593; Y10T137/86493; Y10T137/86574; Y10T137/86582; Y10T137/8659
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
193 words
Pressure-responsive control apparatus comprising: pressuresensing means; a movable member operatively associated with said pressure-sensing means and adapted for movement between spaced positions along a predetermined path in response to pressure variations sensed by said pressure-sensing means; control means including pressure-responsive actuating means adapted to be operated in response to the application of a pressured control fluid thereto, and a pneumatically actuated control valve fluidly coupled to said actuating means and adapted for selectively regulating the supply of a pressured control fluid thereto in response to the transmission of pneumatic signals to said control valve; and pneumatic-signaling means including fluidic jet means adapted to direct a pneumatic jet across said predetermined path of said movable member for providing a first pneumatic signal when said movable member is in a first one of its said positions and impinged by a pneumatic jet issuing from said fluidic jet means and providing a second pneumatic signal when said movable member is in a second one of its said positions and displaced away from such a pneumatic jet, and means adapted for fluidly coupling saId fluidic jet means to said control valve to transmit said pneumatic signals thereto.
Claim 2
Dependent Claim
193 words
Pressure-responsive control apparatus comprising: pressuresensing means; a movable member operatively associated with said pressure-sensing means and adapted for movement between spaced positions along a predetermined path in response to pressure variations sensed by said pressure-sensing means; control means including pressure-responsive actuating means adapted to be operated in response to the application of a pressured control fluid thereto, and a pneumatically actuated control valve fluidly coupled to said actuating means and adapted for selectively regulating the supply of a pressured control fluid thereto in response to the transmission of pneumatic signals to said control valve; and pneumatic-signaling means including fluidic jet means adapted to direct a pneumatic jet across said predetermined path of said movable member for providing a first pneumatic signal when said movable member is in a first one of its said positions and impinged by a pneumatic jet issuing from said fluidic jet means and providing a second pneumatic signal when said movable member is in a second one of its said positions and displaced away from such a pneumatic jet, and means adapted for fluidly coupling saId fluidic jet means to said control valve to transmit said pneumatic signals thereto.
Claim 3
Dependent Claim
79 words
The pressure-responsive control apparatus of claim 1 wherein said pressure-sensing means include an enclosed housing, a diaphragm operatively arranged in said housing and defining first and second pressure chambers therein on opposite sides of said diaphragm, and first and second means adapted for respectively communicating pressures to said first and second chambers; and further including means coupling said movable member to said diaphragm for moving said movable member between its said positions in response to movements of said diaphragm.
Claim 4
Dependent Claim
112 words
The pressure-responsive control apparatus of claim 1 wherein said pneumatic-signaling means further include: second fluidic jet means adapted to direct a second pneumatic jet across said predetermined path of said movable member for providing a third pneumatic signal when said movable member is in one of its said positions and impinged by a pneumatic jet issuing from said second fluidic jet means and providing a fourth pneumatic signal when said movable member is in another of its said positions and displaced away from said second pneumatic jet; and second means adapted for fluidly coupling said second fluidic jet means to said control valve to transmit said third and fourth pneumatic signals thereto.
Claim 5
Dependent Claim
33 words
The pressure-responsive control apparatus of claim 3 wherein said one position of said movable member is its said second position and said other position of said movable member is its said first position.
Claim 6
Dependent Claim
79 words
The pressure-responsive control apparatus of claim 3 wherein said pressure-sensing means include an enclosed housing, a diaphragm operatively arranged in said housing and defining first and second pressure chambers therein on opposite sides of said diaphragm, and first and second means adapted for respectively communicating pressures to said first and second chambers; and further including means coupling said movable member to said diaphragm for moving said movable member between its said positions in response to movements of said diaphragm.
Claim 7
Dependent Claim
65 words
The pressure-responsive control apparatus of claim 5 wherein said movable member has first and second portions respectively extending outwardly from said opposite sides of said diaphragm, said first fluidic jet means are directed toward said predetermined path of said first portion of said movable member, and said second fluidic jet means are directed toward said predetermined path of said second portion of said movable member.
Claim 8
Dependent Claim
33 words
The pressure-responsive control apparatus of claim 6 wherein said one position of said movable member is its said second position and said other position of said movable member is its said first position.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-12-13 | 1975-06-14 | 1975-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-13 | 1979-06-14 | 1979-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-13 | 1983-06-14 | 1983-12-14 | $7700.00 | Window Closed / Lapsed |