Locking hitch-pin for trailer

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Description

FIG. 1 is a perspective view of a locking hitch-pin for trailer showing my new design;

FIG. 2 is a left-end elevational view;

FIG. 3 is a right end elevational view;

FIG. 4 is a right side elevational view;

FIG. 5 is a left side elevational view;

FIG. 6 is a bottom view; and,

FIG. 7 is a top plan view.

Referenced Cited
U.S. Patent Documents
D267470 January 4, 1983 Scherbing
D332387 January 12, 1993 Ling
3590608 July 1971 Smyth
4028916 June 14, 1977 Pender
4841756 June 27, 1989 Curtis
5065603 November 19, 1991 Kloke
5222755 June 29, 1993 O'Neal
5251464 October 12, 1993 Halter
5289704 March 1, 1994 Johnson
5291765 March 8, 1994 Hoisington
Other references
  • American Bicyclist & Motorcyclist, Jun. 1992, p. 57, the Sinox bicycle lock (A).
Patent History
Patent number: D356763
Type: Grant
Filed: Jul 6, 1993
Date of Patent: Mar 28, 1995
Inventor: Douglas J. Herrick (Poynette, WI)
Primary Examiner: Wallace R. Burke
Assistant Examiner: M. Brown
Attorney: Keith Schoff
Application Number: 0/10,289
Classifications
Current U.S. Class: Draw Element, E.g., Trailer Hitch (D12/162); D/8333