Latch assembly for a mine door and a mine door having such an assembly
Number of patents in Portfolio can not be more than 2000
United States of America
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Mar 5, 2024
Grant Date -
N/A
app pub date -
Dec 30, 2022
filing date -
Dec 30, 2022
priority date (Note) -
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status (Latency Note)
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Abstract
A latch assembly for a door having a door body mounted on a door frame includes a retainer movable between a latching position and a non-latching position and configured, in the latching position, to retain the door body in a closed position, and to permit the door body to move with respect to the door frame in the non-latching position to an open position. An actuator is selectively moveable to change the retainer from the latching position to a non-latching position. A linkage is configured to move the retainer in a latching direction toward the latching position and in an unlatching direction toward the non-latching position responsive to actuation of the actuator. A crank is operatively connected to the actuator and linkage and configured to move the retainer toward the latching position as the retainer approaches the latching position.
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