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. 14, 1986
Filed:
Nov. 14, 1984
Applicant:
Inventors:
Louis H Piper, Richmond, VA (US);
J David White, Stone Mountain, GA (US);
Ronald H Hartman, Richmond, VA (US);
Assignee:
Dehydro Corporation, Charlotte, NC (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
210293 ; 210496 ; 210506 ; 2105101 ;
Abstract
Modules for use in forming rigid filter beds by laying a plurality of the modules upon a planar base comprise a bottom grid unit to the top of which is fixed a rigid, porous layer. The grid unit has several intersecting series of strip elements with structured portions to promote drainage of liquid through and away from the porous layer. The grid unit may also include portions to insure interlocking of the top porous layer thereto.