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:
Jul. 30, 2013
Filed:
Jun. 23, 2010
Applicants:
Paul W. Linton, Gresham, OR (US);
Derek Knight, Vancouver, WA (US);
Inventors:
Paul W. Linton, Gresham, OR (US);
Derek Knight, Vancouver, WA (US);
Assignee:
Karcher North America, Inc., Englewood, CO (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B05B 9/04 (2006.01); B05B 9/01 (2006.01); B05B 9/00 (2006.01); B05B 7/30 (2006.01); E03B 7/07 (2006.01);
U.S. Cl.
CPC ...
Abstract
A pressure washer device is provided that employs an unloader bypass valve that directs a selective amount of fluid via a small diameter bypass line back to a water storage tank. The small amount of fluid allows for the pump to remain working and introduces cooler water into a bypass circuit, thereby allowing the thermal relief valve to be omitted. The diameter of the bypass line is of such a diameter to prevent siphonage of the detergent associated with the pressure washer system into the water storage tank as well.