The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 03, 1993
Filed:
Jul. 02, 1992
Applicant:
Inventors:
Robert D Hennessey, Golden Valley, MN (US);
Michael S Wilmo, Crystal, MN (US);
Assignee:
Tennant Company, Minneapolis, MN (US);
Primary Examiner:
Int. Cl.
CPC ...
E01H / ;
U.S. Cl.
CPC ...
15 83 ; 15 503 ; 15179 ; 15392 ;
Abstract
A self-propelled industrial cleaning machine has a cylindrical horizontally mounted rotatable cleaning brush. There is a torsionally rigid connecting member extending generally parallel to the brush. A rigid arm is attached to each end of the connecting member, with each arm supporting an end of the brush. There is a hand operable latch for releasing one of the arms to permit removal or replacement of the brush, with the hand operable latch being arranged to retain the one arm and attachment to the connecting member, with release thereof permitting removal of the arm from the connecting member and brush.