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US 4,230,352 AGranted
Decompression release door latch and stop
AssigneeBoeing Commercial Airplane Company
InventorsFrancis Sealey, Stephen T. Steadman
Life of this patent
Estimating the term…
Abstract
A pivotably mounted door stop linkage has a resilient member acting on the linkage to maintain the door stop in position for conventional door operation while allowing rotation of the stop to release the door in reaction to a pressure differential acting across the door.
Claims13
A pressure responsive release door latch and latch stop mechanism mounted in a door member and a door jamb member, with the mechanisms comprising:
- a door latch mounted to one of the members;
- a linkage having a door latch stop at one end, a cam with roller at the other end and intermediate pivotable mounting to the other member;
- a pivotably mounted rocker arm located to contact the side of the cam roller;
- and resilient means for acting on the cam through the rocker arm to hold the door stop in position for normal operation and to permit rotation of the linkage to release the latch in response to a pressure differential acting across the door.
1 more element
A latch mechanism and a latch stop mechanism mounted to coact for pressure responsive release of a door member for a door jamb member, with the mechanism comprising:
- a door latch mounted to one of the members, a linkage pivotally mounted intermediately to the other member and having one end as a stop for the latch and the other end as a cam with roller, and a cam rocker arm pivotally mounted to contact a side of the cam roller has a spring forceably holding the cam rocker arm in contact with the cam to hold the latch stop in position for normal door actuation while allowing the stop to move to release the latch in response to a pressure differential across the door.
Dependencies are inferred from the claim text.