Shock absorbing caster

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Description

FIG. 1 is a shock absorbing caster embodying the ornamental design constituting my invention;

FIG. 2 is a rear view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a left-side elevational view of FIG. 1, which is identical to the right-side elevational view; and,

FIG. 5 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
D274788 July 24, 1984 Simonsen
D282905 March 11, 1986 Black
D319384 August 27, 1991 Lange
D326221 May 19, 1992 Brule
D378657 April 1, 1997 Screen
3066950 December 1962 Olson et al.
3518714 July 1970 Hager
3747950 July 1973 Hager
4002352 January 11, 1977 Hager
4200195 April 29, 1980 Hager
4254532 March 10, 1981 Hager
4351636 September 28, 1982 Hager
4549746 October 29, 1985 Hager
4685174 August 11, 1987 Hager
4923346 May 8, 1990 Hager
Patent History
Patent number: D409477
Type: Grant
Filed: Apr 7, 1998
Date of Patent: May 11, 1999
Assignee: R. T. Laird, Inc. (Plymouth, MI)
Inventor: James E. Royster (Northville, MI)
Primary Examiner: Holly Baynham
Law Firm: Young & Basile, P.C.
Application Number: 0/86,161
Classifications
Current U.S. Class: D/8375
International Classification: 0805;