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:
May. 19, 1981
Filed:
May. 30, 1979
Horst Herold, Aschaffenburg, DE;
Petri AG, Aschaffenburg, DE;
Abstract
Disclosed is a unilaterally alternating torque backlash lock mechanism that overcomes the disadvantages of prior art single part loop spring braking parts. The invention comprises a control element having a hub member and a housing member surrounding the hub member. The hub member is equipped with a sleeve curving at a distance around a bearing member (or inner hub member). The sleeve does not completely surround the bearing member, but rather displays a slot-like area running its entire length, thus forming a drive slot. A spring is wound around the bearing member and is so designed that each of the spring ends form a peg-like member bent down radially in the outward direction. Each of these peg-like members abut with some clearance against one of the edges of the slot in the sleeve on one side and against a cam-like member on the other side. The cam-like member is formed on the inside surface of the housing and is of sufficient dimensions to extend into the slot-like area of the sleeve.