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:
Sep. 24, 1991
Filed:
Apr. 04, 1990
Jurgen Vollmer, Lohmar, DE;
Jean Walterscheid GmbH, , DE;
Abstract
A coupling hook (5) comprises a housing (7, 8) defining a recess (10) in which a bearing ball (12) of an implement pin (41) is received. The hook also comprises a springt-loaded locking catch (14). The catch (14) is pivotal about a bearing pin (19) with play in the direction of a first line (18) connecting the center (13) of the recess (10) to a contact point (15) between the locking catch (14) and a ball (12) in the recess (10). The coupling hook (5) also comprises a locking stop (23) engaging the locking catch (14) in an undercut recess (25) thereof to define the locking position. The size of the undercut is less than or equal to the size of the play of the catch (14) on the bearing pin (19).