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:
Apr. 11, 1989
Filed:
Jan. 16, 1986
Applicant:
Inventors:
Michael L Blehert, Crystal, MN (US);
Archie A Weidner, Minneapolis, MN (US);
Assignee:
Tennant Company, Minneapolis, MN (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B08B / ;
U.S. Cl.
CPC ...
134 21 ; 134 251 ; 134 254 ; 15349 ; 15352 ; 15348 ; 15 83 ; 15320 ; 15321 ; 15353 ;
Abstract
This invention is concerned with a machine and/or system as well as a method of operation and an assembly whereby a sweeping unit may be quickly converted into a scrubbing unit and vice versa. The system is capable of operation either in a sweeping mode or a scrubbing mode and is also adaptable to include a vacuum wand assembly when the unit is to be operated in its sweeping mode.