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:
Feb. 22, 1994
Filed:
Feb. 18, 1992
Applicant:
Inventors:
Bernard Gurstein, Hayden Lake, ID (US);
Russell Gurstein, Hayden Lake, ID (US);
Assignee:
U.S. Products, Inc., Hayden Lake, ID (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A47L / ;
U.S. Cl.
CPC ...
15321 ; 15339 ; 219630 ; 392444 ;
Abstract
An independent unit heat exchanger is provided downstream of a machine for cleaning upholstery and/or carpets so that unheated detergent water from the cleaning machine passes through a hose and then through the heat exchanger where it is heated to an elevated temperature, and then to the cleaning nozzle where it is discharged. The heat exchanger is provided with an electric heating core about which pipe carrying the detergent water is coiled.