Patent · US Expired

Procedure for controlling a turnstile and a turnstile controlled by said procedure

US5355630A · kind A · utility

3Cited by

6References

5Claims

0Family size

Assignee

Skidata Computer (yesellschaft m.b.H.) · AT

Inventors

Wolfram Kocznar · Innsbruck, AT
Kurt Wallerstorfer · Straßwalchen, AT

Key dates

Filing date	Mar 24, 1993
Grant date	Oct 18, 1994
Priority date	—
Expiry date	Mar 24, 2013

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE06B11/08
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

A motor driven turnstile for providing cyclic access to a passage (16) to which a monitoring system or the like is allocated. The turnstile is controlled in such a way that, after a satisfactory monitoring result, each blocking arm (4) is first taken from the blocking position to a stopping position located at a small angle (alpha) from the blocking position, in which, after external pressure applied by the user, the arm is once again driven by the drive motor (6) and turned further until the next arm is in the blocking position.

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