Patent · US Expired

Magnetic lock

US4662197A · kind A · utility

7Cited by

1References

3Claims

0Family size

Assignee

Zeiss Ikon AG · DE

Inventors

Werner Tietz · Berlin, DE
Jürgen Krühn · Berlin, DE

Key dates

Filing date	Dec 17, 1985
Grant date	May 5, 1987
Priority date	—
Expiry date	Dec 17, 2005

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T70/7712
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

A magnetic lock is provided which has a housing carrying a rotatable core with magnetic rotors and an axially displaceable lock bar which is rotationally connected to the core. A catch ring is provided with means engagable with the lock bar to drive the lock bar axially away from an initial position upon rotation of the core, and a return ring is provided with means engagable with the lock bar to drive the lock bar axially toward the initial position upon a further rotation of the core.

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