The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 07, 1988
Filed:
Sep. 30, 1985
Gerald F Herndon, Bellevue, WA (US);
The Boeing Company, Seattle, WA (US);
Abstract
Inner catapult tubes (8) of aircraft (2) are pivotably mounted on the upper rear portion of ejection seat (12). When they separate from outer catapult tubes (4), tubes (8) pivot upwardly and rearwardly to form stabilizing booms (8). A drag device (30,30',30') is stowed inside the outer end of each boom (8) and extends axially outwardly therefrom upon deployment to apply a small drag load to the upper portion of seat (12) and counteract a tendency of seat (12) to pitch forward during operation of stabilization control rockets (18,20). The drag surfaces of devices (30,30',30') are folded around a center shaft (32,32',32') when stowed and extend radially outwardly from shaft (32,32',32') when deployed. The drag device may be a ram air inflatable device (30), a split tube/daisy petal device (30'), or a device having spring steel ribbons (40) forming a tuft-like appendage (30'). Ribbons (40) are wound around shaft (32' ) when stowed and spring radially outwardly from shaft (32') upon deployment.