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:
Mar. 22, 1977
Filed:
Apr. 28, 1976
Applicant:
Inventor:
Helmut Schneider, Mainz, DT;
Assignee:
Werner & Mertz GmbH, Mainz, DT;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
A47L / ;
U.S. Cl.
CPC ...
15 5 / ;
Abstract
A carpet shampooer with prefoaming means for the shampooing agent. The prefoaming means comprises a fixed member on the machine housing having projections which cooperate with formations on the rotating brush or brushes to subject the foaming agent which is introduced between the interdigiting formations to agitation in order to foam it before it contacts the carpet.