Dual wheel caster

Description

FIG. 1 is a front perspective view of a first embodiment of a hoodless dual wheel caster;

FIG. 2 is a top view of a hoodless dual wheel caster illustrated in FIG. 1;

FIG. 3 is a front view of the hoodless dual wheel caster illustrated in FIGS. 1 and 2;

FIG. 4 is a right side view of the hoodless dual wheel caster illustrated in FIGS. 1 to 3, a mirror image of the left side view;

FIG. 5 is a rear view of the hoodless dual wheel caster illustrated in FIGS. 1 to 4; and

FIG. 6 is a bottom view of the hoodless dual wheel caster illustrated in FIGS. 1 to 5.

FIG. 7 is a front perspective view of a second embodiment of the hoodless dual wheel caster;

FIG. 8 is a top view of the hoodless dual wheel caster illustrated in FIG. 7;

FIG. 9 is a front view of the hoodless dual wheel caster illustrated in FIGS. 7 and 8;

FIG. 10 is a right side view of the hoodless dual wheel caster illustrated in FIGS. 7 and 9, a mirror image of the left side view;

FIG. 11 is a rear view of the hoodless dual wheel caster illustrated in FIGS. 7 to 10; and

FIG. 12 is a bottom view of the hoodless dual wheel caster illustrated in FIGS. 7 to 11.

FIG. 13 is a front perspective view of a third embodiment of a dual wheel caster having a hood;

FIG. 14 is a top view of the hooded dual wheel caster illustrated in FIG. 13;

FIG. 15 is a front view of the hooded dual wheel caster illustrated in FIGS. 13 and 14;

FIG. 16 is a right side view of the hooded dual wheel caster illustrated in FIGS. 13 to 15, a mirror image of the left side view;

FIG. 17 is a rear view of the hooded dual wheel caster illustrated in FIGS. 13 to 16; and

FIG. 18 is a bottom view of the hooded dual wheel caster illustrated in FIGS. 13 to 17.

FIG. 19 is a front perspective view of a modified first embodiment of the hoodless dual wheel caster;

FIG. 20 is a top view of the hoodless dual wheel caster illustrated in FIG. 19;

FIG. 21 is a front view of the hoodless dual wheel caster illustrated in FIGS. 19 and 20;

FIG. 22 is a right side view of the hoodless dual wheel caster illustrated in FIGS. 19 to 21, a mirror image of the left side view;

FIG. 23 is a rear view of the hoodless dual wheel caster illustrated in FIGS. 19 to 22; and

FIG. 24 is a bottom view of the hoodless dual wheel caster illustrated in FIGS. 19 to 23.

FIG. 25 is a front perspective view of a modified second embodiment of the hoodless dual wheel caster;

FIG. 26 is a top view of the hoodless dual wheel caster illustrated in FIG. 25;

FIG. 27 is a front view of the hoodless dual wheel caster illustrated in FIGS. 25 and 26;

FIG. 28 is a right side view of the hoodless dual wheel caster illustrated in FIGS. 25 to 27, a mirror image of the left side view;

FIG. 29 is a rear view of the hoodless dual wheel caster illustrated in FIGS. 25 to 28; and

FIG. 30 is a bottom view of the hoodless dual wheel caster illustrated in FIGS. 25 to 29.

FIG. 31 is a front perspective view of a modified third embodiment of the hooded dual wheel caster;

FIG. 32 is a top view of the hooded dual wheel caster illustrated in FIG. 31;

FIG. 33 is a front view of the hooded dual wheel caster illustrated in FIGS. 31 and 32;

FIG. 34 is a right side view of the hooded dual wheel caster illustrated in FIGS. 31 to 33, a mirror image of the left side view;

FIG. 35 is a rear view of the hooded dual wheel caster illustrated in FIGS. 31 to 34; and

FIG. 36 is a bottom view of the hooded dual wheel caster illustrated in FIGS. 31 to 35.

Referenced Cited
U.S. Patent Documents
D219703 January 1971 Harlang et al.
D220938 June 1971 Harlang
D240399 July 1976 Crescenzi et al.
D241004 August 1976 Pinaire et al.
D241611 September 1976 Crescenzi et al.
D244989 July 12, 1977 Crescenzi
D245313 August 9, 1977 Koepke
D266614 October 19, 1982 Neville
3894310 July 1975 Screen et al.
4077088 March 7, 1978 Melara
4110866 September 5, 1978 Ishii
4120071 October 17, 1978 Crescenzi
4173810 November 13, 1979 James
4290166 September 22, 1981 Melara
4377883 March 29, 1983 Folson
4399586 August 23, 1983 McCarroll
4544425 October 1, 1985 Provolo
Foreign Patent Documents
1023910 October 1978 CAX
2007012 January 1970 FRX
2033218A May 1980 GBX
1572594 July 1980 GBX
Other references
  • Design, Sep. 1978 at p. 96; Showing of Chair Casters, Wilkhahn-Program 23. Faultless Catalog 82: .COPYRGT.1982; at p. 11, Twin Disk.RTM. Casters. Outwater Plastics Inc. Catalog #83, .COPYRGT.1983; at p. 503, Gemini I Twin Wheel Caster, Hooded; at p. 531, Black, Chrome or Brass Casters.
Patent History
Patent number: D296300
Type: Grant
Filed: Dec 19, 1984
Date of Patent: Jun 21, 1988
Assignee: Stewart - Warner Corporation (Chicago, IL)
Inventors: Michael P. Doyle (Stratford, CT), Frank J. Fontana (Stratford, CT), Daniel J. Provolo (Fairfield, CT)
Primary Examiner: Horace B. Fay
Law Firm: Lorusso & Loud
Application Number: 6/682,591
Classifications
Current U.S. Class: D/8375; Multiple (16/47)