Patent · US Expired

Locking apparatus, for example, for household device doors

US6345848B1 · kind B1 · utility

3Cited by

7References

19Claims

0Family size

Assignee

Ellenberger & Poensgen GmbH

Inventors

Helmut Baader · Nabburg, DE
Hubert Harrer · Böblingen, DE
Günther Hengelein · Altdorf, DE

Key dates

Filing date	Nov 4, 1999
Grant date	Feb 12, 2002
Priority date	—
Expiry date	Nov 4, 2019

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T292/699
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

The locking movement and/or the unlocking movement of a bimetallic drive of an electrothermally-controlled locking apparatus, for example for household-device doors, is or are driven by a separate bimetal member (10, 11) over only a first segment of its movement path. In the process, energy is supplied to the energy store (28) of a tipping over-center device until a dead-center position is attained, the energy being released as a moving drive for the remaining segment of the movement path when the dead-center position is exceeded, thereby cutting off the bimetal drive and stabilizing the locking member (2) in its end position.

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