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. 22, 2012
Filed:
Apr. 08, 2009
Joseph E. Tix, Hastings, MN (US);
Jeffrey N Velgersdyk, Minneapolis, MN (US);
Richard D Anderson, Maple Grove, MN (US);
Mark T Weinberger, Mounds View, MN (US);
Joseph E. Tix, Hastings, MN (US);
Jeffrey N Velgersdyk, Minneapolis, MN (US);
Richard D Anderson, Maple Grove, MN (US);
Mark T Weinberger, Mounds View, MN (US);
Graco Minnesota Inc., Minneapolis, MN (US);
Abstract
A method of cleaning and flushing a fast-set material spray gunis disclosed which uses, in the preferred embodiment, a mixture of approximately 62.5% DMSO, 32.5% DBE and 5% water. This mixtureis non-toxic when atomized and lowers the freezing point of the liquid to below 10° F. Because the solvent is mixed with the purge air and expelled from the gun in atomized form, it is important that a non-toxic solvent be utilized and also important that the freezing point of the mixture be low enough to allow use in colder climates without freezing.