Revolving door

Details Revolving door Revolving door

1991-12-19

1993-04-13

Cuomo, Peter M.

Movable or removable closures

Plural wings radiate from common pivot; i.e., revolving

E05D 1502

Patent

active

052011429

ABSTRACT:
A revolving provided with a number of door wings which can be driven with the aid of a drive mechanism. This comprises a chain running in a substantially horizontal plane along a number of chain wheels in an essentially polygonal path and operatively engaging at least one door wing via a carrier. This carrier comprises two hinged rods which engage the chain at two spaced apart points and are interconnected via a lever which is movably and driveably connected to the door wing.

REFERENCES:
patent: 1920397 (1933-08-01), Johnson
patent: 3440759 (1969-04-01), Riddle
patent: 4060935 (1977-07-01), Miller et al.
patent: 4341165 (1982-07-01), Calandritti et al.
patent: 4991347 (1991-02-01), Takimoto et al.

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