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:
Jun. 20, 1978
Filed:
Sep. 16, 1974
Charles A Lee, Knoxville, TN (US);
Frederick M Granberg, Knoxville, TN (US);
Fairchild Incorporated, Beckley, WV (US);
Abstract
A method utilizing the phenomenon of plug flow for removing solids from liquid. Liquid with suspended solids, such as paper mill effluent, is passed through a conduit under conditions of plug flow. This produces a moving plug containing the suspended particles, with the liquid along the wall of the conduit being relatively free of suspended particles. The wall is made liquid permeable, and liquid is forced through the wall as the liquid moves along the conduit. Preferably the wall is made relatively impermeable to a substantial portion of the suspended solids to assure that relatively pure liquid flows through the wall, leaving the solids concentrated in the remaining liquid flowing through the conduit. Liquid with concentrated solids is recirculated.