Revolving door

Details Revolving door Revolving door

1998-08-17

1999-11-23

Redman, Jerry

Movable or removable closures

Convex or concave closure and opening

49118, E06B 334

Patent

active

059878177

ABSTRACT:
A revolving door has at least one night closing panel that runs concentric to at least one barrel-type wall. The night closing panel or panels slide or roll on a guide rail which is located on the ceiling structure or on attachments to the ceiling structure. The night closing panels can be moved with respect to the barrel-type wall by at least one flexible, endless tension or motive device. The flexible tension device is located in a runner, whereby the two strands of the flexible tension device are restrictively guided one above the other in the runner.

REFERENCES:
patent: 4259810 (1981-04-01), West
patent: 4341165 (1982-07-01), Calandritti et al.
patent: 4785579 (1988-11-01), Sugiyama et al.
patent: 4991347 (1991-02-01), Takimoto et al.
patent: 5542211 (1996-08-01), Colombo

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