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:
Jul. 11, 1995
Filed:
Dec. 02, 1993
Brian L Carnell, Rocky Hill, CT (US);
J David Fansler, Oxford, CT (US);
United Technologies Corporation, Hartford, CT (US);
Abstract
A crashworthy cyclic control stick system (10) for use in combination with an energy attenuating stroking crew seat (100) includes a cyclic control stick (11) and an actuating/attenuating mechanism (50). The cyclic control stick (11) includes an upper tube subassembly (14U) having a first hinge fitting (22), a lower tube subassembly (14L) having a second hinge fitting (24), the first hinge fitting (22) being mounted in pivotable combination with the second hinge fitting (24) along a hinge pivot axis (26) the and a locking mechanism (30) mounted in pivotable combination with the first hinge fitting (22) and interactively connected to the second hinge fitting (24) to preclude pivotal movement between the hinge fittings (22, 24). The actuating/attenuating mechanism (50) includes a first uniextensible absorber (56) secured in combination with the crew seat (100), a second uniextensible absorber (58) secured in combination with an energy absorber (132) of the crew seat (100), a release tube ( 60) disposed in interactive combination with the uniextensible absorbers (56, 58), and a cable (52) interconnected to the locking mechanism (30) and the release tube (60). In response to stroking of the crew seat (100) as a result of a crash landing, the first absorber (56) extends and the cable (52) is concomitantly displaced to unlock the locking mechanism (30), causing the first hinge fitting (22) to pivot about the second hinge fitting (24) the cyclic control stick (11) is displaced forwardly. After the extension of the first absorber (56), the first absorber (56) is operative to hold the cable (52) in position, and the second absorber (58) extends to disconnect the release tube (60) to preclude further displacement of the cable (52) during crew seat (100) stroking.