Patent · US Active

Door operator

US9097051B2 · kind B2 · utility

17Cited by

25References

8Claims

0Family size

Assignee

DORMA DEUTSCHLAND GMBH · DE

Inventor

Alexander Hellwig · Ennepetal, DE

Key dates

Filing date	Nov 22, 2013
Grant date	Aug 4, 2015
Priority date	—
Expiry date	Nov 22, 2033

Classification

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

Abstract

A door operator includes a base plate with a receiving profile, a shaft housing inserted into the receiving profile, a first cylinder housing inserted into the receiving profile, a driven shaft rotatably bearing-mounted in the shaft housing, and a piston which is linearly movably guided in the first cylinder housing. The piston and the driven shaft cooperate for mutual conversion between a linear movement of the piston and a rotational movement of the driven shaft, and an energy accumulator is arranged in the first cylinder housing and cooperates with the piston.

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