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:
May. 08, 1990
Filed:
Mar. 11, 1988
Applicant:
Inventors:
Albert Kohl, Solothurn, CH;
Leon Seilaz, Koppigen, CH;
Assignee:
Henkel Kommanditgesellschaft auf Aktein, Duesseldorf, DE;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A47L / ; A47L / ; A47L / ;
U.S. Cl.
CPC ...
15320 ; 15321 ; 15353 ;
Abstract
A drivable floor cleaning machine with integrated fresh liquid compartment (10) and dirty liquid compartment (11) and with a cleaning rotor (19) designed to be supplied with cleaning liquid from the fresh liquid compartment (10). Regulation of the liquid feed to the rotor, with constant observation of the available volume of the liquid for supply to the cleaning rotor (19) are provided. Liquid feed regulation is controlled by an alternating current oscillating piston pump (31) (FIG. 8).