Surface cleaning vehicle

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Description

FIG. 1 is a front perspective view of a surface cleaning vehicle showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a rear elevational view thereof; and

FIG. 6 is a top plan view thereof.

Referenced Cited
U.S. Patent Documents
D189718 February 1961 Patch
D273620 April 24, 1984 Kimzey et al.
3660943 May 1972 Barnthouse
3691689 September 1972 Goff
3704552 December 1972 Beaver et al.
3756377 September 1973 Goff
3858359 January 1975 Leliaert
3877175 April 1975 Snyder
4035958 July 19, 1977 Nishio
4052820 October 11, 1977 Bergh
4336671 June 29, 1982 Nelson
4376358 March 15, 1983 Shelton
4382352 May 10, 1983 Nelson
4416092 November 22, 1983 Nelson
4646481 March 3, 1987 Dickson
Other references
  • Porta Shot-Blast Cleaning Machines, Nelco Manufacturing, Inc., Aug. 1984, Sales Literature. Turbo Blast, Philip Johnson Corporation, May, 1985, Sales Literature.
Patent History
Patent number: D314257
Type: Grant
Filed: May 6, 1988
Date of Patent: Jan 29, 1991
Assignee: Hoover & Wells, Inc. (Toledo, OH)
Inventor: Robert E. Hoover (Toledo, OH)
Primary Examiner: A. Hugo Word
Assistant Examiner: Paula Allen
Law Firm: Marshall & Melhorn
Application Number: 7/190,951
Classifications
Current U.S. Class: Surface Treatment, E.g., Floor, Street, Etc. (D32/15)