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:
Mar. 01, 2011
Filed:
Oct. 02, 2007
Fumiaki Saku, Tokyo, JP;
Tadashi Watanabe, Tokyo, JP;
Yasuo Sekikawa, Tokyo, JP;
Jamco Corporation, Tokyo, JP;
Abstract
A latch device for detecting pressure reduction of a cockpit in an aircraft and releasing a bolt and a stopper device are provided so as to prevent a cockpit door from unexpectedly opening by an impact. A main latch deviceof the cockpit door has a framefixed to a door panel, and a latch baseis mounted to the framecapable of pivotal rotation with a pinas a fulcrum. A boltis inserted into a catch in conjunction with a door handle. A holding/releasing portionholds the latch base. When a pressure difference occurs between a cockpitand a cabin, a pressure-sensing pistonis pushed in, a triggerand a flapperare rotated and the latch baseis released. A stopper deviceregulates movement of the triggerby movement of an inertial pistonwhen an impact force is applied from the cabinside.