The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 27, 1999
Filed:
Oct. 10, 1997
Lothar Thiel, Rheinfelden, DE;
Wampfler Aktiengesellschaft, Weil Am Rhein-Maerkt, DE;
Abstract
A safety strip for use on moving devices with the danger of pinching has a plurality of contact elements assembled into a row under an axial prestress along the safety strip. Extending in these contact elements are electrically conductive contact pins that, in the off, i.e. non-operate state maintain a circuit through the adjacent contact elements by contact and in the event that the safety strip is deformed through some external force open the circuit through the spatial distance from each other. The axial prestress and control of the individual contact elements is effected by means of an elastic tubing. However, in the present state-of-the-art, such safety strips result in a high material load in the area of the contact zones between the individual contact elements and, in addition, have only a limited maintainability. This problem is overcome by generating the prestress through individual tubing pieces that, in alternating sequence, overlay two contact elements and press the overlapping contact elements against each other.