Castor

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Description

FIG. 1 is a side view of a castor showing my new design;

FIG. 2 is a front view of the castor;

FIG. 3 is a plan view of the castor;

FIG. 4 is a perspective view of the castor;

FIG. 5 is an underneath plan view of the castor;

FIG. 6 is a side view of the castor in an alternative condition;

FIG. 7 is a front view of the castor in the alternative condition; and

FIG. 8 is a perspective view of the castor in the alternative condition.

Referenced Cited
U.S. Patent Documents
D240399 July 1976 Crescenzi
D244989 July 12, 1977 Crescenzi
D288286 February 17, 1987 Screen
D288287 February 17, 1987 Screen
650810 May 1900 Enaistle
2170257 August 1939 Anderson
2465741 March 1949 Nalle
3121556 February 1964 Faulkner
3758918 September 1973 Brun
4077086 March 7, 1978 Butler
4085479 April 25, 1978 Barney
4677706 July 7, 1987 Screen
4706329 November 17, 1987 Screen
Foreign Patent Documents
198662 September 1938 CHX
2181343 April 1987 GBX
Patent History
Patent number: D310622
Type: Grant
Filed: Jul 21, 1986
Date of Patent: Sep 18, 1990
Assignee: Colson Castors (Europe) Limited (West Midlands)
Inventor: Stafford T. Screen (Stourbridge)
Primary Examiner: Horace B. Fay, Jr.
Law Firm: Young & Thompson
Application Number: 6/888,390
Classifications
Current U.S. Class: D/8375