Thomas Edward Corsine

US Patent:

D665901, Aug 21, 2012

Filed:

Jan 31, 2011

Appl. No.:

29/384373

Inventors:

Paul Linton - Gresham OR, US
Thomas E. Corsine - Gresham OR, US
Derek J. Knight - Vancoucer WA, US

Assignee:

Kärcher North America, Inc. - Englewood CO

International Classification:

2303

US Classification:

D23416

US Patent:

20160221044, Aug 4, 2016

Filed:

Jan 28, 2016

Appl. No.:

15/009511

Inventors:

- Denver CO, US
Gary G. Charlson - Camas WA, US
Dana Sean Plummer - Yacolt WA, US
Thomas E. Corsine - Troutdale OR, US

International Classification:

B08B 3/02
B08B 3/10
F24H 8/00

Abstract:

An improved hot water pressure washer utilizes a combination of technologies to achieve lower emission levels and increased operational efficiency. A forced air natural gas or forced air oil burner utilizes a flue gas and recirculation line to lower carbon monoxide and NOx emissions from a burner. A flue gas heat exchanger is utilized to lower the temperature of the exhaust gas. The lower exhaust gas temperatures allow for lower cost materials to be utilized. The efficiency levels of a hot water pressure washer are increased over known devices.