Patent US3552415A successfully refreshed from Google Patents.
US3552415A
Expired / Lapsed
US
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Jet entrainment control for a fluidic device
Assignee: Corning Glass Works
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Filing: 1969-04-03
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Granted: 1971-01-05
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Expires: 1989-04-03
Abstract
Abstract A fluidic device is provided with entrainment passages to the sides of the power stream supply nozzle which open up into the upper end of the interaction chamber. A control stream selectively directed into an entrainment passage in opposition to entrainment flow creates a low pressure zone between the power stream and the control stream causing the power stream to deflect towards that side of the interaction chamber. Maintenance of the power stream within a desired outlet passage may be achieved by feedback from that outlet passage to form the control stream.
Inventors
- 👤 Donald A Small
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:51
CPC Classifications
F; F15; F15C; F15C1/00; F15C1/14; F15C1/08; Y; Y10; Y10T; Y10T137/00; Y10T137/206; Y10T137/2229; Y10T137/2234
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
104 words
A double-jet entrainment fluidic device comprising a supply nozzle for directing a power stream toward a plurality of power stream outlets on the opposite side of the interaction chamber therefrom and in line therewith, at least one entrainment passage fluid coupled to the interaction chamber to one side of the power stream inlet nozzle, at least one entrainment control passage in said device for directing an applied control stream into said entrainment passage in opposition to entrainment flow, whereby a low-pressure zone is created between said power stream and said control stream to cause said power stream to move laterally toward said low-pressure zone.
Claim 2
Dependent Claim
104 words
A double-jet entrainment fluidic device comprising a supply nozzle for directing a power stream toward a plurality of power stream outlets on the opposite side of the interaction chamber therefrom and in line therewith, at least one entrainment passage fluid coupled to the interaction chamber to one side of the power stream inlet nozzle, at least one entrainment control passage in said device for directing an applied control stream into said entrainment passage in opposition to entrainment flow, whereby a low-pressure zone is created between said power stream and said control stream to cause said power stream to move laterally toward said low-pressure zone.
Claim 3
Dependent Claim
29 words
The fluidic device as claimed in claim 1 further comprising vents coupled to said outlet passages for preventing pressure buildup in the outlet passages during power stream flow therethrough.
Claim 4
Dependent Claim
67 words
The fluidic device as claimed in claim 1 further comprising a plurality of control passages, each having a control port opening up into said entrainment passage at longitudinally spaced locations, whereby application of a control signal to any one of said control ports causes deflection of said power stream toward the outlet passage on the opposite side of said interaction chamber from said series of control ports.
Claim 5
Dependent Claim
57 words
The fluidic device as claimed in claim 3 further including a feedback passage having one end fluid coupled to the outlet passage on the same side of said device as said series of control ports with said feedback passage discharge port having its axis generally aligned with the axis of said entrainment passage and positioned downstream thereof.
Claim 6
Dependent Claim
39 words
The fluidic device as claimed in claim 1 further comprising means for directing a second control stream toward said power stream downstream of said supply nozzle to deflect the same regardless of the presence of said first control stream.
Claim 7
Dependent Claim
60 words
The fluidic device as claimed in claim 5 wherein said means for directing a second control stream towards said power stream comprises a control port to one side of said interaction chamber and downstream of said supply nozzle with its axis at right angles to said first control stream and said power stream and spaced laterally from said power stream.
Claim 8
Dependent Claim
64 words
A fluidic device as claimed in claim 5 wherein said means for directing a control stream into said entrainment passage comprises a feed back passage having one end fluid coupled to an associated power stream outlet passage and the other end opening up into said entrainment passage at the interaction chamber end thereof and laterally displaced to one side of said power stream path.
Claim 9
Dependent Claim
27 words
The fluidic device as claimed in claim 7 further comprising an additional control passage opening up into said interaction chamber downstream of said feedback passage discharge port.
References Cited (Backward Citations)
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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) | 1974-01-04 | 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 |