Patent ID: 11920390
Assignee: JACK KENNEDY METAL PRODUCTS & BUILDINGS, INC.
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 13:
14. The mine door as set forth in claim 13, further comprising a first keeper and a second keeper, wherein each of the first retainer and the second retainer is pivotable about a pivot axis between the latching and non-latching positions, the first retainer including an engagement surface configured to engage the first keeper in the latching position to retain the door body in the closed position and the second retainer including an engagement surface configured to engage the second keeper in the latching position to retain the door body in the closed position, each of the first retainer and the second retainer being pivotable in a first direction toward the latching position into engagement with the door frame, each of the first retainer and the second retainer being configured to press against the door frame in the first direction when the first retainer and the second retainer is in the latching position to retain the door body in the closed position.