Mine door system with trigger-actuated latch mechanism

Details Mine door system with trigger-actuated latch mechanism Mine door system with trigger-actuated latch mechanism

2008-07-01

2008-07-01

Engle, Patricia (Department: 3673)

Closure fasteners

Trippers

C292S221000, C292S219000

Reexamination Certificate

active

10706190

ABSTRACT:
A mine door system for closing a mine doorway comprises a door hinged adjacent the doorway for swinging relative to the stopping between a closed position and an open position swung outwardly away from the stopping. A keeper is mounted in fixed position relative to the doorway. The system further comprises a trigger-actuated latch mechanism including a detent engageable with the keeper for latching the door in its closed position and a trigger operably connected to the detent in a latched position. The mechanism is constructed and configured so that actuation of the trigger causes the detent to move from a latched position in which the detent engages the keeper for latching the door closed to an unlatched position in which the detent is disengaged from the keeper for allowing the door to be opened.

REFERENCES:
patent: 2507196 (1950-05-01), Dall
patent: 2627435 (1953-02-01), Borrup
patent: 2679427 (1954-05-01), Johnson
patent: 2741505 (1956-04-01), Courney
patent: 2804329 (1957-08-01), Landis
patent: 3968984 (1976-07-01), Guth
patent: 4082331 (1978-04-01), Kennedy et al.
patent: 4118894 (1978-10-01), Kennedy et al.
patent: 4373294 (1983-02-01), Kennedy et al.
patent: 4478535 (1984-10-01), Kennedy et al.
patent: 4523406 (1985-06-01), Kennedy et al.
patent: 4548435 (1985-10-01), Bourne
patent: 4632440 (1986-12-01), Adrian et al.
patent: 4693503 (1987-09-01), Bisbing
patent: 4875721 (1989-10-01), Okamoto et al.
patent: 5168667 (1992-12-01), Kennedy et al.
patent: 5240349 (1993-08-01), Kennedy et al.
patent: 5307788 (1994-05-01), Peck
patent: 5638709 (1997-06-01), Clavin
patent: 5927012 (1999-07-01), Cermola et al.
patent: 6032986 (2000-03-01), Kennedy et al.
patent: RE36853 (2000-09-01), Kennedy et al.
patent: 6164871 (2000-12-01), Kennedy et al.
patent: 6425820 (2002-07-01), Kennedy et al.
patent: 6457906 (2002-10-01), Kennedy et al.
patent: 6502872 (2003-01-01), Molzer
patent: 6594954 (2003-07-01), Kennedy et al.

Affiliated with

Also associated with

Rating

Mine door system with trigger-actuated latch mechanism does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Mine door system with trigger-actuated latch mechanism, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mine door system with trigger-actuated latch mechanism will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3941920