Door with movable lower block

Details Door with movable lower block Door with movable lower block

1998-11-12

1999-10-12

Redman, Jerry

Movable or removable closures

Operator for retractable sealing, guiding or locking strip

Rotating shaft normal to plane or strip movement

E06B 728

Patent

active

059640600

ABSTRACT:
A door locking and sealing system is provided including a doorway having a floor, a wall mounted on the floor with a rectangular cut out formed therein, and a recess formed in the floor along a lower edge of the cut out. Also included is a door housing having an outer face, an inner face and a thin peripheral side wall integrally coupled therebetween for defining a hollow interior space. The peripheral side wall is defined by a top face, an inboard side face hingably coupled within the cut out of the wall, an outboard side face and an open bottom. A block is slidably situated within the open bottom of the door housing. Finally, a control assembly is provided for raising and lowering the block in and out of the recess.

REFERENCES:
patent: 2541421 (1951-02-01), Hunter
patent: 3059287 (1962-10-01), Baruch et al.
patent: 5339881 (1994-08-01), Owens

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