Patent US3556690A successfully refreshed from Google Patents.
Patent US3578009A successfully refreshed from Google Patents.
US3578009A
Expired / Lapsed
US
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Distributed control flueric amplifier
Assignee: Individual
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Filing: 1968-10-24
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Granted: 1971-05-11
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Expires: 1988-10-24
Abstract
Abstract A flueric amplifier with two control ports for each control channel. Each control channel is split to operate both ports. The control flow is split and applied to the power jet through the two separate control ports. This separate application is called distributed control and results in greater flow recovery and pressure recovery as well as improved switching time. One of the control ports comprises an entrainment control port for introducing positive pressure control fluid to the attachment bubble existing along the attachment wall, and the other one of the control ports constitutes a momentum exchange control port for creating a momentum impact force on the power stream.
Inventors
- 👤 Chris E Spyropoulos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 03:49
CPC Classifications
F; F15; F15C; F15C1/00; F15C1/08; Y; Y10; Y10T; Y10T137/00; Y10T137/206; Y10T137/218; Y10T137/2202; Y10T137/2218; Y10T137/2229; Y10T137/224; Y10T137/2245
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
221 words
In a flueric amplifier of the wall attachment type having input means for admitting a fluid input power stream into an interaction chamber, attachment walls downstream of said inlet and on opposite sides of said chamber and separate output channels leading from the chamber downstream of said attachment walls, the improvement comprising: groups of longitudinally aligned control ports opening up into said chamber upstream of said attachment wall on opposite sides of the power stream with each output channel lying on diametrically opposite sides of the power stream from respective group of control ports effecting movement of said power stream into the same, at least one upstream control port on each side of said chamber comprising an entrainment control port for introducing positive pressure control fluid to the attachment bubble existing along the attachment wall and at least one control port on the same side of said chamber and downstream of said entrainment control port constituting a momentum exchange control port for creating a momentum impact force on the same side of said power stream, a common primary control channel for independently supplying control fluid and secondary control channels separately connecting the control ports for each group to its primary control channel to simultaneously supply control fluid to said chamber through said entrainment control port and said momentum exchange control port.
Claim 2
Dependent Claim
221 words
In a flueric amplifier of the wall attachment type having input means for admitting a fluid input power stream into an interaction chamber, attachment walls downstream of said inlet and on opposite sides of said chamber and separate output channels leading from the chamber downstream of said attachment walls, the improvement comprising: groups of longitudinally aligned control ports opening up into said chamber upstream of said attachment wall on opposite sides of the power stream with each output channel lying on diametrically opposite sides of the power stream from respective group of control ports effecting movement of said power stream into the same, at least one upstream control port on each side of said chamber comprising an entrainment control port for introducing positive pressure control fluid to the attachment bubble existing along the attachment wall and at least one control port on the same side of said chamber and downstream of said entrainment control port constituting a momentum exchange control port for creating a momentum impact force on the same side of said power stream, a common primary control channel for independently supplying control fluid and secondary control channels separately connecting the control ports for each group to its primary control channel to simultaneously supply control fluid to said chamber through said entrainment control port and said momentum exchange control port.
Claim 3
Dependent Claim
25 words
An amplifier according to claim 1 wherein said groups of control ports number two and open up into said chamber on diametrically opposite sides thereof.
Claim 4
Dependent Claim
30 words
An amplifier according to claim 1 wherein each of the secondary control channels includes a variable flueric impedance for control of the amounts of fluid flow in each secondary channel.
Claim 5
Dependent Claim
31 words
An amplifier according to claim 3 wherein said groups of control ports are two in number and said groups of control ports and said output channels are diametrically opposite each oTher.
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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) | 1974-05-10 | 1974-11-09 | 1975-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-10 | 1978-11-09 | 1979-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-10 | 1982-11-09 | 1983-05-11 | $7700.00 | Window Closed / Lapsed |