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:
Feb. 24, 1987
Filed:
Jul. 13, 1984
Applicant:
Inventor:
Robert L Durham, Simonton, TX (US);
Assignee:
Agritec, Inc., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ; B01D / ;
U.S. Cl.
CPC ...
210679 ; 55 29 ; 55 98 ; 55387 ; 55522 ; 55524 ; 210689 ; 210807 ; 210282 ; 210484 ; 2105021 ; 210506 ;
Abstract
Disclosed is the filtration of fluids by utilizing porous biogenetic silica ash devoid of fiber alone or combined with additives. The biogenetic silica may be in particles or prilled or pelleted. Solid particles and liquids are filtered from gases and liquids by passing them through the biogenetic silica. The additives are materials which attract the impurities into the pores of the biogenetic silica, such as water-swellable polymers or carbon remaining on the biogenetic silica when incompletely pyrolyzed. The carbon can be activated.