Patent · US Expired

Locking device and door-drive device comprising the same, for a door operated by a motor assembly

US6557301B1 · kind B1 · utility

9Cited by

5References

29Claims

0Family size

Assignee

Hörmann KG Antriebstechnik · DE

Inventors

Thomas Hormann · Bornsteiner Straße, DE
Michael Sanke · Rheda-Wiedenbrück, DE
Viktor Schütz · Arnsberg, DE

Key dates

Filing date	Oct 9, 2001
Grant date	May 6, 2003
Priority date	—
Expiry date	Oct 9, 2021

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE05Y2900/106
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

The invention relates to a locking device and a door-drive device comprising a locking device for a door which can be secured against opening by unauthorized persons using force from the exterior. The locking device has a lever element consisting of two lever arms which pivot about a first pivoting shaft. A connecting element is hinged to the first lever arm for connecting the door and the second lever arm which has an engaging device.

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