Arrangement in revolving door assemblies

Details Arrangement in revolving door assemblies Arrangement in revolving door assemblies

1988-06-09

1989-07-04

Dorner, Kenneth J.

Movable or removable closures

Arcuate closure rotates across arcuate opening

49 44, 109 68, 109 71, E06B 334

Patent

active

048437611

ABSTRACT:
A revolving door assembly includes a pair of part-cylindrical wall portions partly surrounding the rotational path of a revolving door and partly defining a passage. Pairs of part-cylindrical wall panels are provided in association with the part-cylindrical wall portions, such wall panels being movable along paths concentric with the rotational path of the revolving door and being adapted to close and open the passage substantially in syncronism with the continuous rotation of the revolving door. Thereby passage will remain checked during such rotation, alternatingly by the revolving door alone and by the door in cooperation with the wall panels of each pair, whereby a draft-free passage will be maintained.

REFERENCES:
patent: 798786 (1905-09-01), Hansen
patent: 4557073 (1985-12-01), Sandling

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