Operating apparatus for controlling the operation of a revolving

Movable or removable closures – Plural wings radiate from common pivot; i.e. – revolving – With speed regulator

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E05D 1502

Patent

active

056530560

ABSTRACT:
An apparatus for controlling the operation of a revolving door, in which an electric motor provides an assistance mode which supplies assistance so that the manual force applied by a person to a panel of the revolving door is reduced by a .DELTA.v, and thus the person using the door need only apply a slight additional force.

REFERENCES:
patent: 3497997 (1970-03-01), Sheckells
patent: 4339843 (1982-07-01), Burnett
patent: 4581849 (1986-04-01), Schwarz
patent: 5097454 (1992-03-01), Schwarz et al.

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