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. 30, 1990
Filed:
Dec. 28, 1988
William J Lawrence, Kemah, TX (US);
Other;
Abstract
A filtration device includes in a pressure vessel a driven rotary shaft having a longitudinal bore. Fluid suspension to be processed to recover the fluid is expelled from distributing conduit, situated either in the shaft or in the vessel, the outlets of which open to the cavity of the pressure vessel at central processing zones proximate the shaft adjacent the radially inward portions of annular filtration discs secured to the shaft. The filtration discs are laminates in which an inner conducting support layer is enclosed by an outer filtration layer. The layers are porous, the pores are in fluidic communication, and the pores of the inner layer are larger than the pores in the outer layer. Fluid collecting in the outer layer of a spinning filter disc flows from the inner layer through collecting passageways to the longitudinal bore in the shaft, and is removed from the vessel through a conduit fluidly communicating with longitudinal bore.