Floor maintenance machine

- Tennant Company
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Description

FIG. 1 is a front perspective view of a floor maintenance machine showing our new design;

FIG. 2 is a right side elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a front elevational view thereof;

FIG. 6 is a rear elevational view thereof.

Referenced Cited
U.S. Patent Documents
D189718 February 1961 Patch
D257845 January 13, 1981 Peabody et al.
3701177 October 1972 Meyer et al.
4009500 March 1, 1977 Ashton
Other references
  • Modern Material Handling-May 1961-p. 218 Tennant "85" Sweeper. Industrial Equipment News-Jul. 1980-p. 25 FMC Sweeper Model 67. IEN-Aug. 1980-p. 118 American Lincoln Sweeper.
Patent History
Patent number: D273622
Type: Grant
Filed: Sep 10, 1982
Date of Patent: Apr 24, 1984
Assignee: Tennant Company (Minneapolis, MN)
Inventors: Neil F. Brown (Minneapolis, MN), Roger D. Star (Wayzata, MN), Logan W. Johnson (Edina, MN)
Primary Examiner: Catherine E. Kemper
Assistant Examiner: Lynn Wilder
Law Firm: Merchant, Gould, Smith, Edell, Welter & Schmidt
Application Number: 6/416,656