Castor

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Description

FIG. 1 is a left side and front perspective view of a castor showing our new design in a front position;

FIG. 2 is a right side elevational view thereof in the same position as that of FIG. 1;

FIG. 3 is a left side elevational view thereof with the castor in a second position;

FIGS. 4 and 5 are respective rear and front elevational views thereof; and

FIGS. 6 and 7 are respective top and bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
D210932 May 1968 Libhart
D288285 February 17, 1987 Simmons
2911666 November 1959 Schultz, Jr.
3828392 August 1974 Bolger
4336630 June 29, 1982 Page
4747180 May 31, 1988 Screen
Foreign Patent Documents
342644.3 January 1986 DEX
215048 August 1975 ESX
596952 August 1945 GBX
667597 March 1952 GBX
1271148 April 1972 GBX
2155321A September 1985 GBX
Other references
  • Payson Casters Inc., "Mini" catalog No. 16; at p. 2. H D Wheel Brakes; at p. 13, Scaffold Casters-200 SB. Faultless Castor Co., catalog 200, at p. 59; Series S9700. Spring Action, Rigid Plate Truck Castor: brake at p. 104. Wilson Caster Corp., Tech-Lock brochure: .COPYRGT.1986. 2 pages from a catalogue showing the ALEX Series SC Castor.
Patent History
Patent number: D308934
Type: Grant
Filed: May 20, 1986
Date of Patent: Jul 3, 1990
Assignee: The Revvo Castor Company Limited (Dorset)
Inventors: Douglas H. Howell (Christchurch), John P. Gear (Christchurch)
Primary Examiner: Horace B. Fay, Jr.
Law Firm: Stevens, Davis, Miller & Mosher
Application Number: 6/865,246
Classifications
Current U.S. Class: D/8375