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:
Apr. 03, 1979
Filed:
Jan. 11, 1978
Heinrich Hemfort, Oelde, DE;
Westfalia Separator AG, Oelde Westfalen, DE;
Abstract
A continuously operating counterflow centrifugal extractor suitable for liquid-liquid extractions wherein solids can be separated with the heavier phase. The extractor (FIG. 1) includes a horizontally disposed drum 8, 9 rotated by pulley 15 which is mounted on hollow shaft extension 6. A transport screw 10 is mounted on a shaft 11 and is rotated by forces developed in the liquid at a rate different than the rate of rotation of the drum. The two liquids are introduced into opposite ends of a mixing zone A. After mixing the heavier phase passes through clarification zone C to outlet 20 and the lighter phase passes through the clarification zone B and on to pump 21 which is mounted on shaft 11 and rotates with the transport screw 10. The difference in rotation rates can be controlled by operation of a throttle 27.