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:
Aug. 22, 2017
Filed:
Oct. 16, 2015
Applicant:
Biochem Systems, Inc., Spring, TX (US);
Inventors:
Bruce Jansen, Montgomery, TX (US);
Cody Nath, Houston, TX (US);
Assignee:
BioChem Systems, Inc., Spring, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B08B 9/08 (2006.01); B08B 9/28 (2006.01); B08B 3/08 (2006.01); B08B 3/14 (2006.01); B08B 3/00 (2006.01); B61D 5/00 (2006.01); C11D 11/00 (2006.01); C11D 3/37 (2006.01); C11D 7/50 (2006.01); C11D 7/24 (2006.01);
U.S. Cl.
CPC ...
B08B 9/08 (2013.01); B08B 3/00 (2013.01); B08B 3/14 (2013.01); B08B 9/283 (2013.01); B61D 5/00 (2013.01); C11D 3/3707 (2013.01); C11D 7/5027 (2013.01); C11D 11/0041 (2013.01); C11D 7/24 (2013.01);
Abstract
A blend of aliphatic hydrocarbons and polyglycol ether(s) is used in a process for cleaning railroad tank cars that have been gravity drained of hydrocarbon fluids but may be left with a residuum containing heavy hydrocarbons, paraffin and noxious gas. A simple recirculation system is established between the chemical source, the contaminated railcar, canister filters and back to the chemical source. Contaminates are removed from the cleaning chemical by the filters and there is no water or steam used which might otherwise damage the railcar.