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:
Jul. 28, 2020
Filed:
Feb. 20, 2018
Brevets, Llc, Lewes, DE (US);
Mark A. Buese, Fleming Island, FL (US);
BREVETS, LLC, Lewes, DE (US);
Abstract
Continuous extraction units (CEUs) are constructed that allow switching of extraction chambers (ECs) that contain extractable material (EM) and extract solution. Extraction chambers can be removable and replaceable, where the CEU has a fluid flow portion and a liquid transfer portion. Quick-connect valves allow exchange of ECs in the CEU while under flow without solvent loss. Alternatively, the CEU employs pairs of ECs where a first EC at equilibrium partitioning of an extract solution drains to an expansion chamber (EXC) with an expansion valve (EV) and a heat transfer tube situated proximal to or shared with a solvent condenser (SC) to form of a double phase change heat exchanger (HE). Solvent from the SC fills a paired EC containing EM. A second pair of ECs has a first EC with EM and solvent establishing equilibrium and a second EC that is emptied of spent EM, filled with fresh EM, and readied to receive solvent.