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:
Oct. 28, 1986
Filed:
Mar. 20, 1985
Applicant:
Inventors:
Jurgen Vollmer, Lohmar, DE;
Alfred Frackenpohl, Lohmar, DE;
Assignee:
Jean Walterscheid GmbH, Lohmar, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16C / ; F16D / ;
U.S. Cl.
CPC ...
403114 ; 403122 ; 403324 ; 172450 ; 172677 ; 2804 / ; 2804 / ;
Abstract
A coupling assembly particularly for a trailer hitch or similar device, wherein a coupling hook is to be engaged about a coupling sphere including an annular retainer plate having a radially innermost conical support region and a radially outermost conical guide region formed integrally with each other opening away from said coupling sphere with the support region having an opening angle of about 156.degree. and the conical guide region having an opening angle of less than 120.degree., the support region extending radially through about one-third of the total radial width of the annular retainer plate.