Patent · US Active

Door actuator

US9631412B2 · kind B2 · utility

19Cited by

8References

6Claims

0Family size

Assignee

DORMA DEUTSCHLAND GMBH · DE

Inventors

Alexander Hellwig · Ennepetal, DE
Sabine Wiemann · Ennepetal, DE
Thomas Salutzki · Ennepetal, DE

Key dates

Filing date	Nov 14, 2012
Grant date	Apr 25, 2017
Priority date	—
Expiry date	Nov 14, 2032

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE05Y2900/132
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

A door operator for opening and/or for closing a door includes a housing, an output shaft with a cam disc, and a first piston guided in the housing, which first piston bears against the cam disc. The output shaft includes a first axle body supported in the housing. The first axle body is connected to the cam disc in a torque-proof manner by a first plug-in connection.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.