US3613708A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluidic displacement transducer
Assignee: Colt Industries Operating Corp
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Filing: 1969-11-07
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Granted: 1971-10-19
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Expires: 1989-11-07
Abstract
Abstract A fluid amplifier is provided with pressure surfaces which are movable in response to the pressure differential between two opposed chambers. A power stream impinges on a splitter element which separates two channels which respectively communicate with the chambers, so that a control stream may direct the power stream into either channel and create a pressure differential between the chambers. When the pressure surfaces move, the splitter element again impinges on the power stream annulling the initial pressure differential. Either the splitting element or the orifice of the power stream is connected to the pressure surfaces so as to be movable therewith to change the relative location of the splitter element and orifice. The amplifier may be employed as either a position or force to pressure transducer or a pressure to position or force transducer. A fluidic closedloop pneumatic actuation system incorporates the amplifier to position a servovalve controlled actuator.
Inventors
- 👤 Robert F Kampe
- 👤 Albert H White
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:15
CPC Classifications
F; F15; F15C; F15C1/00; F15C1/02; F15C1/04; Y; Y10; Y10T; Y10T137/00; Y10T137/206; Y10T137/218; Y10T137/2202; Y10T137/2278; Y10T137/2322
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
283 words
A fluidic operator comprising a casing having a chamber with an orifice therein, means to generate a fluid power stream from the orifice, means to generate a control flow for deflecting and positioning the power stream emanating from the orifice, a piston element having two outer wall portions mounted within the casing chamber in spaced relationship to the casing for axial movement therein, the central portion of the piston element having two output channels for receiving the power stream and a splitting element defined therebetween, the casing comprising two walls respectively located in the casing chamber intermediate the central portion of the piston element and the outer wall portions of the piston element, the piston element extending through the casing walls in spaced relationship thereto, two flexible diaphragms respectively secured to the outer wall portions and the casing such that two pressure chambers are respectively defined in the casing chamber between the casing walls and the outer wall portions, the diaphragms serving to maintain the piston element in spaced relationship to the casing, provide for untrammeled movement of the piston element, maintain proper orientation between the output channels and the orifice, and provide high amplification of the pressure differential between the pressure chambers, means to interconnect the output channels to the respective pressure chambers such that the piston element follows the deflection of the power stream to annul the pressure differential between the pressure chambers caused by initial deflection of the power stream, a device adapted to be controlled by the motion of the piston element, and an output member spaced from the casing operatively interconnecting the piston element and the device to transmit the motion of the piston element to the device.
Claim 2
Dependent Claim
283 words
A fluidic operator comprising a casing having a chamber with an orifice therein, means to generate a fluid power stream from the orifice, means to generate a control flow for deflecting and positioning the power stream emanating from the orifice, a piston element having two outer wall portions mounted within the casing chamber in spaced relationship to the casing for axial movement therein, the central portion of the piston element having two output channels for receiving the power stream and a splitting element defined therebetween, the casing comprising two walls respectively located in the casing chamber intermediate the central portion of the piston element and the outer wall portions of the piston element, the piston element extending through the casing walls in spaced relationship thereto, two flexible diaphragms respectively secured to the outer wall portions and the casing such that two pressure chambers are respectively defined in the casing chamber between the casing walls and the outer wall portions, the diaphragms serving to maintain the piston element in spaced relationship to the casing, provide for untrammeled movement of the piston element, maintain proper orientation between the output channels and the orifice, and provide high amplification of the pressure differential between the pressure chambers, means to interconnect the output channels to the respective pressure chambers such that the piston element follows the deflection of the power stream to annul the pressure differential between the pressure chambers caused by initial deflection of the power stream, a device adapted to be controlled by the motion of the piston element, and an output member spaced from the casing operatively interconnecting the piston element and the device to transmit the motion of the piston element to the device.
Claim 3
Dependent Claim
24 words
A fluidic operator, as defined in claim 1, wherein the interconnecting means comprises two flexible conduits respectively interconnecting the output channels and the chambers.
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) | 1974-10-18 | 1975-04-19 | 1975-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-18 | 1979-04-19 | 1979-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-18 | 1983-04-19 | 1983-10-19 | $7700.00 | Window Closed / Lapsed |