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:
Oct. 13, 1981
Filed:
Jun. 19, 1979
Applicant:
Inventor:
Thomas S Block, Muskegon, MI (US);
Assignee:
Clarke-Gravely Corporation, Muskegon, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A47L / ;
U.S. Cl.
CPC ...
15 98 ; 15320 ; 15359 ;
Abstract
The specification discloses a floor scrubber wherein the squeegee is connected to the machine by a coil spring. The squeegee is free of direct rigid connection to the machine such that it can shift readily from side to side through the action of the spring. The squeegee is biased to a raised position by a second spring and can be forced downwardly into engagement with the floor through a unique pneumatic cylinder.