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:
Feb. 14, 1995
Filed:
May. 13, 1993
Applicant:
Inventors:
Nishaneth K Mehta, Houston, TX (US);
Richard W Krajicek, Houston, TX (US);
Assignee:
Serv-Tech, Inc., Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B08B / ; B08B / ; B08B / ;
U.S. Cl.
CPC ...
134 10 ; 134 11 ; 134 221 ; 134 2214 ; 134 2215 ; 134 2219 ; 134 30 ; 134 31 ; 134 34 ; 134 39 ;
Abstract
Contamination can be removed from equipment of a chemical processing flow path by pumping through the plant an aqueous solution at an elevated temperature of an extractant, such as terpene, and a surfactant mixture which traps contaminants for disposal in an environmentally acceptable manner.