US3696828A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Common supply for opposing jet fluidic device
Assignee: Johnson Controls International Inc
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Filing: 1970-08-10
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Granted: 1972-10-10
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Expires: 1990-08-10
Abstract
Abstract An impact modulator includes a pair of opposed nozzles having corresponding orifices establishing opposed impacting streams. An intermediate wall includes a control orifice aligned with the nozzles and located adjacent the impact position. The nozzles are connected to a fluid source with one nozzle connected through a pressure-dropping restrictor. A bleed conduit is connected to the downstream side of the restrictor and includes a bleed restrictor having an orifice which is preferably of a cross section equal to or greater than that of the nozzle orifice.
Inventors
- 👤 Bjorn G Bjornsen
- 👤 Louis D Atkinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:02
CPC Classifications
F; F15; F15C; F15C1/00; F15C1/20; Y; Y10; Y10T; Y10T137/00; Y10T137/206; Y10T137/2164; Y10T137/2169; Y10T137/2174
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
172 words
A fluidic apparatus having a pair of opposing and impacting streams, comprising a pair of main stream-forming means for establishing the impacting streams, first and second fluid supply passageway means for connecting said stream-forming means to a corresponding fluid supply means, said first supply passageway means including a flow restriction means to reduce the pressure to the corresponding first stream-forming means with respect to the pressure to the second stream-forming means and thereby establish a selected impact position, said flow-restriction means having a variable pressure drop with flow, means to vary the relative strength of said impacting streams, and an auxiliary fluid flow path coupled to said first passageway means between said restriction means and the corresponding stream-forming means connected to said first passageway means and whereby a change in the flow to the corresponding stream-forming means connected to said first passageway means establishes a relatively small percentage change in the flow through said flow restriction means and maintains the supply pressure of the stream from said first stream-forming means essentially constant.
Claim 2
Dependent Claim
172 words
A fluidic apparatus having a pair of opposing and impacting streams, comprising a pair of main stream-forming means for establishing the impacting streams, first and second fluid supply passageway means for connecting said stream-forming means to a corresponding fluid supply means, said first supply passageway means including a flow restriction means to reduce the pressure to the corresponding first stream-forming means with respect to the pressure to the second stream-forming means and thereby establish a selected impact position, said flow-restriction means having a variable pressure drop with flow, means to vary the relative strength of said impacting streams, and an auxiliary fluid flow path coupled to said first passageway means between said restriction means and the corresponding stream-forming means connected to said first passageway means and whereby a change in the flow to the corresponding stream-forming means connected to said first passageway means establishes a relatively small percentage change in the flow through said flow restriction means and maintains the supply pressure of the stream from said first stream-forming means essentially constant.
Claim 3
Dependent Claim
69 words
The fluidic apparatus of claim 1 wherein said supply passageway means are connected to a common constant pressure air source, said auxiliary fluid flow path including a bleed passageway means coupled to the atmosphere and a bleed restriction means in said bleed passageway means, said bleed passageway restriction means having a cross sectional flow area at least as great as the cross sectional flow area of the stream-forming means.
Claim 4
Dependent Claim
20 words
The fluidic apparatus of claim 1 wherein said supply passageway means are connected to a common constant pressure fluid supply.
Claim 5
Dependent Claim
121 words
The fluidic apparatus of claim 1 having a collector orifice located adjacent the impact position of the impacting streams, said pair of stream-forming means including opposed nozzles having corresponding orifices, said fluid supply passageway means connecting said nozzles to a common fluid supply means, a collector orifice located adjacent the impact position of the impacting streams and defining an output chamber adjacent said first one of said pair of first stream-forming means and a reference chamber adjacent the other of said stream-forming means, and said auxiliary fluid flow path including a bleed passageway means coupled to a reference pressure fluid supply and including a restriction in the bleed passageway means having a cross section at least equal to the nozzle orifices.
Claim 6
Dependent Claim
69 words
The fluidic apparatus of claim 1 wherein said means to vary the strength of the impacting streams includes a transverse stream-forming means establishing a control stream engaging one of said impacting streams, Said supply passageway means being connected to a common constant pressure air source, said auxiliary fluid flow path including a bleed passageway means coupled to the atmosphere and a bleed restriction means in said bleed passageway means.
Claim 7
Dependent Claim
33 words
The fluidic apparatus of claim 1 wherein said auxiliary fluid flow path includes a bleed passageway means coupled to a reference fluid supply and a bleed restriction means in said bleed passageway means.
Claim 8
Dependent Claim
33 words
The fluidic apparatus of claim 6 wherein said bleed passageway restriction means has a cross sectional flow area at least as great as the cross sectional flow area of the corresponding stream-forming means.
Claim 9
Dependent Claim
44 words
The fluidic apparatus of claim 1 wherein said stream-forming means are similar nozzles having corresponding orifices and said supply passageway means are conduits connected to a common constant pressure air source, said auxiliary fluid flow path including a bleed conduit coupled to the atmosphere.
Claim 10
Dependent Claim
50 words
The fluidic apparatus of claim 8 having a collector orifice means located in alignment with and adjacent the impact position of the impacting streams and defining an output chamber adjacent a first one of said pair of stream-forming means and a reference chamber adjacent the other of said stream-forming means.
Claim 11
Dependent Claim
55 words
The fluidic apparatus of claim 1 wherein said second stream-forming means is connected to a second fluid supply defining a variable signal source and said first stream-forming means is connected to a first fluid supply, said first fluid supply connection including said passageway means having said flow restriction means to control the set point pressure.
Claim 12
Dependent Claim
58 words
The fluidic apparatus of claim 10 said auxiliary fluid flow path includes a bleed passageway means connected to said first fluid supply passageway means between said restriction means and the corresponding stream-forming means, and said bleed passageway means includes a second restriction means, at least one of said restriction means being variable to adjust the set point pressure.
References Cited (Backward Citations)
US3469592A
Cited
US3499458A
Cited
US3461896A
Cited
US3500846A
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US3515004A
Cited
US3537465A
Cited
US3489009A
Cited
US3486521A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-10-10 | 1976-04-10 | 1976-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-10 | 1980-04-10 | 1980-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-10 | 1984-04-10 | 1984-10-10 | $7700.00 | Window Closed / Lapsed |