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. 24, 1994
Filed:
Jun. 01, 1992
Edward J Palen, Los Angeles, CA (US);
Hughes Aircraft Company, Los Angeles, CA (US);
Abstract
A system for continuously processing items using supercritical fluid wherein the main process vessel in which the items are cleaned or extracted is continuously pressurized with supercritical fluid. The continuous pressurization of the main process vessel is achieved by using an entry airlock to initially pressurize the item to be processed prior to transport into the main process vessel. An exit airlock is provided to depressurize the item after cleaning or extraction in the main process vessel. The system also provides for pretreatment of the items in the entry airlock prior to processing in the main vessel. Post-treatment may also be provided in the exit airlock when desired.