Patent US3570763A successfully refreshed from Google Patents.
US3570763A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Streaming
Assignee: Energy Sciences Inc
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Filing: 1968-11-22
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Granted: 1971-03-16
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Expires: 1988-11-22
Abstract
Abstract An even number of small holes of circular cross section are arranged adjacent the inlet to a supersonic nozzle sculpted in boundary layer, each small hole being in series with the nozzle and included in a pair of such holes spaced 90* apart at opposite sides of said inlet.
Inventors
- 👤 Nathaniel Hughes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:29
CPC Classifications
F; F02; F02M; F02M27/00; F02M27/08
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
130 words
A supersonic nozzle device comprising: a boundary layer confining wall with inlet and outlet ends and a throat plane stabilizer intermediAte thereof; a portion at said inlet end defining a nozzle inlet for receiving a subsonic stream to be given a transonic speed at said plane and to be discharged as a supersonic stream at said outlet end; and an even number of holes of circular cross section arranged adjacent said inlet and discharging into zones adjacent the interior of said wall, said holes each being of smaller diameter than said confining wall, each said hole being included in a pair of said holes spaced 180* apart at opposite sides of said inlet, said throat plane stabilizer comprising throat stabilizing holes extending through said wall downstream of the first-mentioned holes.
Claim 2
Dependent Claim
130 words
A supersonic nozzle device comprising: a boundary layer confining wall with inlet and outlet ends and a throat plane stabilizer intermediAte thereof; a portion at said inlet end defining a nozzle inlet for receiving a subsonic stream to be given a transonic speed at said plane and to be discharged as a supersonic stream at said outlet end; and an even number of holes of circular cross section arranged adjacent said inlet and discharging into zones adjacent the interior of said wall, said holes each being of smaller diameter than said confining wall, each said hole being included in a pair of said holes spaced 180* apart at opposite sides of said inlet, said throat plane stabilizer comprising throat stabilizing holes extending through said wall downstream of the first-mentioned holes.
Claim 3
Dependent Claim
19 words
The nozzle device of claim 1 in which said holes are constructed to provide for supersonic fluid flow therethrough.
Claim 4
Dependent Claim
15 words
The nozzle device of claim 1 in which there are at least four said holes.
Claim 5
Dependent Claim
18 words
The nozzle device of claim 3 in which four of said holes are spaced 90* from one another.
Claim 6
Independent Claim
125 words
The method of producing beats comprising the steps of: providing a supersonic nozzle having a boundary layer confining wall with inlet and outlet ends, a throat plane stabilizer therebetween, and a portion at said inlet end defining an inlet for receiving a subsonic stream to be given a transonic speed at said plane and to be discharged as a supersonic stream at said outlet end; and providing supersonic fluid flow through an even number of holes of circular cross section arranged adjacent said inlet and discharging into zones adjacent the interior of said wall, said holes each being of smaller diameter than said confining wall, each said hole being included in a pair of said holes spaced 180* apart at opposite sides of said inlet.
Claim 7
Independent Claim
125 words
The method of producing beats comprising the steps of: providing a supersonic nozzle having a boundary layer confining wall with inlet and outlet ends, a throat plane stabilizer therebetween, and a portion at said inlet end defining an inlet for receiving a subsonic stream to be given a transonic speed at said plane and to be discharged as a supersonic stream at said outlet end; and providing supersonic fluid flow through an even number of holes of circular cross section arranged adjacent said inlet and discharging into zones adjacent the interior of said wall, said holes each being of smaller diameter than said confining wall, each said hole being included in a pair of said holes spaced 180* apart at opposite sides of said inlet.
References Cited (Backward Citations)
US3182675A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-03-15 | 1974-09-14 | 1975-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-15 | 1978-09-14 | 1979-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-15 | 1982-09-14 | 1983-03-16 | $7700.00 | Window Closed / Lapsed |