US3568931A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thrust reverser
Assignee: Rolls Royce PLC
•
Filing: 1969-09-09
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Granted: 1971-03-09
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Expires: 1989-09-09
Abstract
Abstract A thrust reverser comprises a cylindrical casing having an apertured portion; a plurality of thrust reverser members which are mounted within the casing and are movable between a thrust reversal position, in which they block the casing to fluid flow therethrough and force the fluid to pass out through the said apertured portion, and a forward thrust position in which they permit the fluid to flow through the casing but block a part only of the apertured portion; a plurality of additional members which are disposed within the casing and are movable between a forward thrust position, in which they block at least most of the remaining part of the apertured portion, and a thrust reversal position, in which they permit the fluid to pass out through the apertured portion; a sleeve member which is movable over the casing between forward thrust and thrust reversal positions in which the apertured portion is respectively closed and opened to fluid flow therethrough; interconnecting means which interconnect the thrust reverser members, the additional members and the sleeve member so that the movement of all these members between their thrust reversal and forward thrust positions occurs simultaneously; and power-operated means for effecting the movement of the said members.
Inventors
- 👤 James Oswald Mortlock
- 👤 Francis Jeffrey Colville
- 👤 James Millward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:32
CPC Classifications
G; G01; G01F; G01F23/00; G01F23/14; G01F23/16; G01F23/161; F; F02; F02K; F02K1/00; F02K1/54; F02K1/64; F02K1/70; F02K1/72
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
205 words
A thrust reverser comprising a cylindrical casing having an apertured portion; a plurality of thrust reverser members which are mounted within the casing and are movable between a thrust reversal position, in which they block the casing to fluid flow therethrough and force the fluid to pass out through the said apertured portion, and a forward thrust position in which they permit the fluid to flow through the casing but block a part only of the apertured portion; a plurality of additional members which are disposed within the casing and are movable between a forward thrust position, in which they block at least one of the remaining part of the apertured portion, and a thrust reversal position, in which they permit the fluid to pass out through the apertured portion; a sleeve member which is movable over the casing between forward thrust and thrust reversal positions in which the apertured portion is respectively closed and opened to fluid flow therethrough; interconnecting means which interconnect the thrust reverser members, the additional members and the sleeve member so that the movement of all these members between their thrust reversal and forward thrust positions occurs simultaneously; and power operated means for effecting the movement of the said members.
Claim 2
Dependent Claim
205 words
A thrust reverser comprising a cylindrical casing having an apertured portion; a plurality of thrust reverser members which are mounted within the casing and are movable between a thrust reversal position, in which they block the casing to fluid flow therethrough and force the fluid to pass out through the said apertured portion, and a forward thrust position in which they permit the fluid to flow through the casing but block a part only of the apertured portion; a plurality of additional members which are disposed within the casing and are movable between a forward thrust position, in which they block at least one of the remaining part of the apertured portion, and a thrust reversal position, in which they permit the fluid to pass out through the apertured portion; a sleeve member which is movable over the casing between forward thrust and thrust reversal positions in which the apertured portion is respectively closed and opened to fluid flow therethrough; interconnecting means which interconnect the thrust reverser members, the additional members and the sleeve member so that the movement of all these members between their thrust reversal and forward thrust positions occurs simultaneously; and power operated means for effecting the movement of the said members.
Claim 3
Dependent Claim
19 words
A thrust reverser as claimed in claim 1 in which the sleeve member is movable axially of the casing.
Claim 4
Dependent Claim
40 words
A thrust reverser as claimed in claim 2 in which the power operated means is connected to the sleeve member, the movement of the latter causing movement of the thrust reverser and additional members by way of the interconnecting means.
Claim 5
Dependent Claim
22 words
A thrust reverser as claimed in claim 3 in which each of the thrust reverser and additional members is a flap member.
Claim 6
Dependent Claim
36 words
A thrust reverser as claimed in claim 4 in which an assembly of guide vanes is mounted in the apertured portion to direct the fluid forwardly when the said members are in the thrust reversal position.
Claim 7
Dependent Claim
74 words
A thrust reverser as claimed in claim 5 in which the casing has upstream and downstream portions which are disposed on opposite sides of the apertured portion and are interconnected by a plurality of angularly spaced apart axially extending beams which carry the said guide vanes, each of the thrust reverser members being interconnected to the sleeve members by a link which passes through a slot In a said beam or between adjacent beams.
Claim 8
Dependent Claim
24 words
A thrust reverser as claimed in claim 1 in which each additional member is pivotally interconnected to at least one respective thrust reverser member.
Claim 9
Dependent Claim
48 words
A thrust reverser as claimed in claim 7 in which each thrust reverser member has leading and trailing parts which are pivotally interconnected, the said leading and trailing parts being folded against each other in the thrust reversal position and being substantially coplanar in the forward thrust position.
Claim 10
Dependent Claim
52 words
A thrust reverser as claimed in claim 8 in which, in the forward thrust position, there are gaps between the adjacent leading parts and gaps between the adjacent trailing parts of adjacent thrust reverser members, each additional member overlapping the said adjacent parts so as to cover most of the respective gap.
Claim 11
Dependent Claim
34 words
A thrust reverser as claimed in claim 8 in which there are a pair of pivotally interconnected additional members between the adjacent leading parts and the adjacent trailing parts of adjacent thrust reverser members.
Claim 12
Dependent Claim
38 words
A thrust reverser as claimed in claim 1 in which, in the forward thrust position, the thrust reverser members block the downstream part only of the apertured portion, while the additional members block the upstream part only thereof.
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) | 1974-03-08 | 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 |