Patent US3568700A successfully refreshed from Google Patents.
US3568700A
Expired / Lapsed
US
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Fluid amplifier
Assignee: Individual
•
Filing: 1968-12-06
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Granted: 1971-03-09
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Expires: 1988-12-06
Abstract
Abstract The invention relates to a fluid amplifier provided with a jet cavity connected to the atmosphere, exclusively by blow openings. Said cavity containing stream conductors, separating recirculating fluid, necessary for the addition of fluid to be entrained by the jet, from the main stream.
Inventors
- 👤 Henk A M Verhelst
- 👤 Cornelis J Van Gorp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:13
CPC Classifications
F; F15; F15C; F15C1/00; F15C1/18; Y; Y10; Y10T; Y10T137/00; Y10T137/206; Y10T137/2229; Y10T137/2234; Y10T137/2262
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
164 words
A fluid amplifier wherein a main jet is directed into an enclosed jet cavity for selective discharge through either of a pair of angularly related outlets, comprising a stream conductor defining one sidewall of the cavity, said fluid amplifier being formed to define a recirculation path distinct from said outlets extending on the remote side of said stream conductor from the jet cavity, said path being separated from the cavity solely by said stream conductor and communicating with said cavity at upstream and downstream locations, respectively, of said cavity, for taking a portion of said main jet from said downstream location and returning it to the main jet at said upstream location, said amplifier further being formed with a control input for directing a control jet into said main jet, transversely thereto at said upstream location, and in a direction opposite to the return of said portion to the main jet for selectively shifting said main jet from one said outlet to the other.
Claim 2
Dependent Claim
164 words
A fluid amplifier wherein a main jet is directed into an enclosed jet cavity for selective discharge through either of a pair of angularly related outlets, comprising a stream conductor defining one sidewall of the cavity, said fluid amplifier being formed to define a recirculation path distinct from said outlets extending on the remote side of said stream conductor from the jet cavity, said path being separated from the cavity solely by said stream conductor and communicating with said cavity at upstream and downstream locations, respectively, of said cavity, for taking a portion of said main jet from said downstream location and returning it to the main jet at said upstream location, said amplifier further being formed with a control input for directing a control jet into said main jet, transversely thereto at said upstream location, and in a direction opposite to the return of said portion to the main jet for selectively shifting said main jet from one said outlet to the other.
Claim 3
Dependent Claim
20 words
A fluid amplifier as defined claim 1, including a blow opening communicating with the recirculation path at said downstream location.
Claim 4
Dependent Claim
16 words
Amplifier according to claim 6, wherein in the path of recirculation there is a damping room.
References Cited (Backward Citations)
US3438384A
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US3107850A
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US3240219A
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US3362421A
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US3326227A
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US3402727A
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US3425432A
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US3420253A
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US3461777A
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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) | 1974-03-08 | 1974-09-07 | 1975-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-08 | 1978-09-07 | 1979-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-08 | 1982-09-07 | 1983-03-09 | $7700.00 | Window Closed / Lapsed |