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:
Jan. 25, 2011
Filed:
Feb. 04, 2008
Brian C. Considine, Chelmsford, MA (US);
John A. Cogliandro, Dedham, MA (US);
Maureen P. Cogliandro, Dedham, MA (US);
John M. Moses, Dedham, MA (US);
John R. Hannon, Quincy, MA (US);
John P. Markiewicz, Andover, MA (US);
Brian C. Considine, Chelmsford, MA (US);
John A. Cogliandro, Dedham, MA (US);
Maureen P. Cogliandro, Dedham, MA (US);
John M. Moses, Dedham, MA (US);
John R. Hannon, Quincy, MA (US);
John P. Markiewicz, Andover, MA (US);
Raytheon Company, Waltham, MA (US);
Abstract
A method of cleaning an industrial tank using electrical energy and critical fluid comprises the steps of transmitting electrical energy into an industrial tank to a first predetermined temperature, providing a critical fluid with a reactant or catalyst into the tank for diffusion into the contents of the tank at a predetermined pressure, transmitting electrical energy into the tank to heat the contents including the critical fluid to a second predetermined temperature to initiate reaction of a reactant in the critical fluid with a portion of the contents of the tank causing hydrocarbons and contaminants to be released for extraction as a vapor, liquid or dissolved in the critical fluid. A step of pressure cycling may be performed prior to a step of removing the contents of the tank including the hydrocarbons and contaminants. A further step includes separating the hydrocarbons, critical fluid, gases, and contaminants removed from the tank.