Rotating ball caster

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Description

FIG. 1 is a top plan view of the rotating ball caster illustrating one embodiment of the present invention;

FIG. 2 is a front elevational view of the rotating ball caster of FIG. 1, the left side, rear, and right side views appearing the same as the front view;

FIG. 3 is a bottom plan view of the rotating ball caster of FIG. 1;

FIG. 4 is a top plan view of a second embodiment of the rotating ball caster of the present invention;

FIG. 5 is a front elevational view of the rotating ball caster of FIG. 4, the left side, rear, and right side views appearing the same as the front view; and,

FIG. 6 is a bottom plan view of the rotating ball caster of FIG. 4.

Referenced Cited
U.S. Patent Documents
545068 August 1895 Gaffney
635680 October 1899 Guinan
647675 April 1900 Koch
672490 April 1901 Norblad
1154448 September 1915 Sleicher
1198717 September 1916 Gardner
1337344 April 1920 Czyzyk
1412499 April 1922 York
1440641 January 1923 Stevens
1445747 February 1923 Bryant et al.
2034509 March 1936 De Haven
Foreign Patent Documents
586615 January 1925 FRX
357524 November 1961 CHX
4206 February 1897 GBX
16304 August 1901 GBX
226964 January 1925 GBX
Patent History
Patent number: D392875
Type: Grant
Filed: Dec 26, 1995
Date of Patent: Mar 31, 1998
Inventor: Robert L. Scott (Los Angeles, CA)
Primary Examiner: Holly Baynham
Law Firm: Knobbe, Martens, Olson & Bear, LLP
Application Number: 0/48,329
Classifications
Current U.S. Class: D/8375
International Classification: 0805;