Patent · US Expired

Key assembly for coded security system

US4287735A · kind A · utility

14Cited by

3References

7Claims

0Family size

Assignee

Sachs Systemtechnik GmbH · DE

Inventors

Gerd Brunken · Dittelbrunn, DE
Rupert Stangl · Oberwerrn, DE

Key dates

Filing date	Oct 30, 1979
Grant date	Sep 8, 1981
Priority date	—
Expiry date	Oct 30, 1999

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T70/7876
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

A key assembly for operating a coded security system is structured with a plurality of information carrier members mounted on a longitudinal member of the key assembly and angularly arranged thereon to define a code for a security system operated by the key. Alteration of the code is effected by changing the relative orientation of the information carrier members by threadedly loosening the longitudinal member upon which the carrier members are held, readjusting the position of the carrier members and tightening the longitudinal member to hold the information carrier members fixed in a desired relative position defining the code.

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