Aeronautics and astronautics – Aircraft structure – Details
Patent
1990-02-12
1991-11-12
Peters, Jr., Joseph F.
Aeronautics and astronautics
Aircraft structure
Details
292 36, 292218, 292DIG31, 49200, B64C 114
Patent
active
050641476
ABSTRACT:
A door latching and lifting mechanism for use on an aircraft as an escape hatch. The door (10) is an upwardly opening plug-type door. Its latching mechanism (12) consists of a torque tube (80) and handle (90), both of which are carried by the door (10). Pulling on the handle (90) rotates the tube (80) and causes door latch pins (113) to retract, thus releasing the door (10). A preloaded lift spring (48), connected to the door (10) by an overhead cable (18), automatically pulls the door upwardly as soon as the pins (113) retract.
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Maraghe Alex
Noble Donald R.
Kaser Bruce A.
Palomar Linda L.
Peters Jr. Joseph F.
The Boeing Company
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