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. 13, 2003
Filed:
Sep. 05, 2001
Scott Wojan, Novi, MI (US);
Michael Lewis Greenfield, Ann Arbor, MI (US);
Timothy John Wallington, Ann Arbor, MI (US);
Edward Karl Krause, Ann Arbor, MI (US);
Ford Global Technologies, L.L.C., Dearborn, MI (US);
Abstract
A washer system and a method are provided for purging the washer liquids contained within a washer system. A first reservoir containing a freezable washer liquid a second reservoir containing a freeze-resistant washer liquid and an exit circuit are fluidically coupled to a fluid distribution circuit A fluid purge apparatus is also coupled to the fluid distribution circuit An electronic control module (ECM) is electrically coupled to the fluid distribution circuit the fluid purge apparatus and a temperature sensor The ECM controls the fluid purge apparatus upon receiving a temperature signal from the temperature sensor The fluid purging apparatus purges freezable washer liquid from a portion of the fluid distribution circuit during temperatures at or below a predetermined temperature, to prevent the washer liquid from freezing within the fluid distribution circuit.