Single wheel castor with stabilizer and vibration damper for transport of heavy machines

- Kabushikigaisha Orii
Description

FIG. 1 is a left side, top and front perspective view of a single wheel castor with stabilizer and vibration damper for transport of heavy machines showing my new design;

FIG. 2 is a left side elevational view thereof;

FIGS. 3 and 4 are respectively rear and front elevational views thereof;

FIG. 5 is a right side elevational view thereof;

FIGS. 6 and 7 are respectively top and bottom plan views thereof; and

FIG. 8 is a left side elevational view thereof with the vibration damper in lowered position.

Referenced Cited
U.S. Patent Documents
D205847 September 1966 Good
D221616 August 1971 Hollander
D306397 March 6, 1990 Kweon
1532064 March 1925 Neiswender
1604723 October 1926 Rutherford
1895882 January 1933 Herold
3455526 July 1969 Orii
3602464 August 1971 Orii
3789796 April 1975 Whyte
4077086 March 7, 1978 Butke
4385415 May 31, 1983 Volz
4759098 July 26, 1988 Ko
Foreign Patent Documents
198662 September 1938 CHX
Other references
  • Colson, Twin-Tech Plunger-Lock Castor: 1 page flyer.
Patent History
Patent number: D313928
Type: Grant
Filed: Apr 22, 1988
Date of Patent: Jan 22, 1991
Assignee: Kabushikigaisha Orii (Kanagawa)
Inventor: Masaru Orii (Tokyo)
Primary Examiner: Horace B. Fay, Jr.
Law Firm: Collard, Roe & Galgano
Application Number: 7/184,623
Classifications
Current U.S. Class: D/8375