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. 07, 1996
Filed:
Jan. 26, 1995
Applicant:
Inventor:
Michael S Bolmer, Lower Providence, PA (US);
Assignee:
Elf Atochem North America, Inc., Philadelphia, PA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B08B / ; C11D / ; C11D / ; C23G / ;
U.S. Cl.
CPC ...
134 40 ; 134 42 ; 252162 ; 252170 ; 252171 ; 252364 ; 8142 ;
Abstract
Evaporative cold cleaning of objects wherein the object is contacted in an open environment with a nonazeotropic solvent blend containing an HCFC, HFC or PFC component having no flash point (such as 141b), a higher boiling nonflammable chlorinated solvent (such as perchloroethylene), and a moderately flammable, intermediate boiling, oxygenated organic solvent (such as n-butanol).