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. 08, 1980
Filed:
Jun. 16, 1978
Arthur F Saxon, Pittsburgh, PA (US);
Dravo Corporation, Pittsburgh, PA (US);
Abstract
A multi-cell apparatus for the solvent extraction of oils or juices from divided organic material and like operations wherein a circular series of open top cells is radially disposed for rotation about a vertical axis with a bottom door hinged to the lower end of each cell comprised of a perforate bottom panel carried on a rigid frame and which is normally held closed against the lower end of its cell, but which swings downwardly by the removal of support at both the inner and outer ends of the door at a predetermined station in the circle of rotation of the cells for the discharge of spent material in turn from each cell preparatory to the door being again closed. Each door, as herein disclosed has a diagonal structural frame member under the perforate bottom, so arranged, in effect, to divide the door into two complementary triangular areas of unequal area in such manner that the weight of the load of material in the cell above one triangular area overbalances the weight over the complementary area whereby the usual support for the inner end of each door is eliminated other than the usual hinge arrangement.