Patent US3799478A successfully refreshed from Google Patents.
US3799478A
Expired / Lapsed
US
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Ejector for jettisoning loads from aircrafts
Assignee: R Alkan et Cie
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Filing: 1972-09-08
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Granted: 1974-03-26
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Expires: 1992-09-08
Abstract
Abstract This ejector for jettisoning a load from an aircraft comprises a thrust mechanism responsive to the release control action exerted on the ejector and in the preferred embodiment a pair of cam extensions are associated with the thrust mechanism for exerting a kinematic and positioning action on points disposed longitudinally at spaced intervals on said load, so as to lower said points equally or differentially according to the desired nose-dive or tail-down position in which it is desired to jettison the load.
Inventors
- 👤 B Costes
- 👤 P Coutin
- 👤 J Hasquenoph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:38
CPC Classifications
B; B64; B64D; B64D1/00; B64D1/02; B64D1/04
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
156 words
An ejector for jettisoning a load from an aircraft, comprising an ejector mechanism, a pair of longitudinally aligned thrust members adapted to move between a retracted position and an operative position in which they engage directly and simultaneously the load at two separate points of its uppermost surface, separate linkage means associated with each thrust member and pivoted to said ejector mechanism, a coupling rod interconnecting said separate linkage means, a cylinder and piston unit secured at least to one of said separate linkage means and adapted to be supplied with gas under pressure under the control of an electric signal to cause the movement of said thrust members from their retracted positioN to their operative position, said separate linkage means being capable of applying to said thrust member differential movements causing said two points of the load to be lowered differentially in order to set the load in a desired longitudinal orientation before jettisoning same.
Claim 2
Dependent Claim
156 words
An ejector for jettisoning a load from an aircraft, comprising an ejector mechanism, a pair of longitudinally aligned thrust members adapted to move between a retracted position and an operative position in which they engage directly and simultaneously the load at two separate points of its uppermost surface, separate linkage means associated with each thrust member and pivoted to said ejector mechanism, a coupling rod interconnecting said separate linkage means, a cylinder and piston unit secured at least to one of said separate linkage means and adapted to be supplied with gas under pressure under the control of an electric signal to cause the movement of said thrust members from their retracted positioN to their operative position, said separate linkage means being capable of applying to said thrust member differential movements causing said two points of the load to be lowered differentially in order to set the load in a desired longitudinal orientation before jettisoning same.
Claim 3
Dependent Claim
79 words
Ejector as set forth in claim 16, wherein each thrust member and its corresponding linkage means are constituted by a lever pivoted to said ejector mechanism and comprising at the rear a load suspension hook and at the front a cam extension for suspending the load and pushing same, respectively, during the ejector operation, and the connection of said levers by said coupling rod being such to produce a predertimined ratio between the movements of said cam extensions respectively.
Claim 4
Dependent Claim
84 words
Ejector as set forth in claim 1, which includes a pair of vertical longitudinally aligned thrust member each operatively connected to a bell-crank lever fulcrimed to a fixed pivot point an extension of each lever beong connected to one end of said cylinder and piston unit and a connecting rod interconnecting said bell-crank levers, the interconnection of said bell-crank levers being such to produce a predetermined ratio between the movements of said thrust members when passing from their retracted position to their operative position.
Claim 5
Dependent Claim
78 words
Ejector as set forth in claim 3, wherein said thrust memeber present suspension elements co-acting with complementary elements of the upper surface of the load and are disposed ahead and astern of a central thrust and suspension member also co-acting with the upper surface of the load, said central thrust and suspension member being adapted to be immediately released while the suspension elements of said thrust members are adapted to be released automaticly after a predetermined downward stroke.
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) | 1977-03-25 | 1977-09-24 | 1978-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-25 | 1981-09-24 | 1982-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-25 | 1985-09-24 | 1986-03-26 | $7700.00 | Window Closed / Lapsed |