Patent US3552413A successfully refreshed from Google Patents.
US3552413A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Feedback divider for fluid amplifier
Assignee: United States Department of the Army
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Filing: 1964-06-12
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Granted: 1971-01-05
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Expires: 1984-06-12
Abstract
Abstract This invention relates to pure fluid amplifiers having dynamic feedback dividers for providing a feedback which contributes assistance to the boundary layer lock-on phenomena.
Inventors
- 👤 Raymond W Warren
- 👤 Ralph G Barclay
- 👤 John Gerald Moorhead
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:47
CPC Classifications
F; F15; F15C; F15C1/00; F15C1/08; Y; Y10; Y10T; Y10T137/00; Y10T137/206; Y10T137/2087; Y10T137/2104; Y10T137/2229; Y10T137/2234
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
102 words
In a fluid amplifier: a. a fluid power source for producing a fluid stream; b. A pair of divergent receiver means; c. means for directing said power stream toward said receiver means; d. divider means for separatiNg said pair of receiver means; e. said divider means being a solid element having a pair of divergent sides which form the inner sides of said pair of receiver means; and having a third side connecting the closer ends of the divergent sides; and f. said third side providing a feedback flow to reinforce the continuance of power stream in one of said receiver means.
Claim 2
Dependent Claim
102 words
In a fluid amplifier: a. a fluid power source for producing a fluid stream; b. A pair of divergent receiver means; c. means for directing said power stream toward said receiver means; d. divider means for separatiNg said pair of receiver means; e. said divider means being a solid element having a pair of divergent sides which form the inner sides of said pair of receiver means; and having a third side connecting the closer ends of the divergent sides; and f. said third side providing a feedback flow to reinforce the continuance of power stream in one of said receiver means.
Claim 3
Dependent Claim
78 words
In a fluid amplifier: a. a fluid power source for producing a fluid stream; b. a pair of divergent receiver means; c. means for directing said power stream toward said receiver means; d. divider means for separating said pair of receiver means; e. said divider means being a solid element having a pair or receiver means, and having a third side connecting the closer ends of the divergent sides; and f. said third side being arcuate in shape.
Claim 4
Dependent Claim
78 words
In a fluid amplifier: a. a fluid power source for producing a fluid stream; b. a pair of divergent receiver means; c. means for directing said power stream toward said receiver means; d. divider means for separating said pair of receiver means; e. said divider means being a solid element having a pair or receiver means, and having a third side connecting the closer ends of the divergent sides; and f. said third side being arcuate in shape.
Claim 5
Dependent Claim
95 words
In a fluid amplifier: a. a fluid power source for producing a fluid stream; b. a pair of divergent receiver means; c. means for directing said power stream toward said receiver means; d. divider means for separating said pair of receiver means; e. said divider means being a solid element having a pair of divergent sides which form the inner sides of said pair of receiver means, and having a third side connecting the closer ends of the divergent sides; and f. said third side being concave in shape with respect to said power source.
Claim 6
Dependent Claim
95 words
In a fluid amplifier: a. a fluid power source for producing a fluid stream; b. a pair of divergent receiver means; c. means for directing said power stream toward said receiver means; d. divider means for separating said pair of receiver means; e. said divider means being a solid element having a pair of divergent sides which form the inner sides of said pair of receiver means, and having a third side connecting the closer ends of the divergent sides; and f. said third side being concave in shape with respect to said power source.
Claim 7
Dependent Claim
145 words
A fluid device comprising an inlet for supplying power fluid, a pair of outlets, a pair of control inlets for directing said power fluid to a selected outlet, and a vortex chamber all leading from a common mixing chamber, said vortex chamber being disposed intermediate said outlets and in alignment with said inlet to receive power fluid therefrom, said vortex chamber being dimensioned to create a vortex movement of fluid therein with a portion of said fluid being directed to said selected outlet to maintain said fluid at said selected outlet after the application of fluid from said control inlets has terminated, said control inlets being disposed at substantially right angles with respect to said inlet and said vortex chamber, said outlets being angularly disposed away from said inlet on opposite sides of said vortex chamber and between said vortex chamber and said control inlets.
Claim 8
Dependent Claim
145 words
A fluid device comprising an inlet for supplying power fluid, a pair of outlets, a pair of control inlets for directing said power fluid to a selected outlet, and a vortex chamber all leading from a common mixing chamber, said vortex chamber being disposed intermediate said outlets and in alignment with said inlet to receive power fluid therefrom, said vortex chamber being dimensioned to create a vortex movement of fluid therein with a portion of said fluid being directed to said selected outlet to maintain said fluid at said selected outlet after the application of fluid from said control inlets has terminated, said control inlets being disposed at substantially right angles with respect to said inlet and said vortex chamber, said outlets being angularly disposed away from said inlet on opposite sides of said vortex chamber and between said vortex chamber and said control inlets.
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) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |