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:
Sep. 29, 1981
Filed:
Aug. 02, 1979
Applicant:
Inventors:
Takehiko Mori, Tokyo, JP;
Kazuo Mori, Tokyo, JP;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ; B01D / ;
U.S. Cl.
CPC ...
210352 ; 210488 ;
Abstract
A filtering apparatus includes a plurality of disc-type filtering elements stacked in parallel with each other. Each disc-type filtering element has one or more annular projections thereon facing an adjacent disc defining a filtering slit. One or more fluid passages define a filtering path therethrough. Fine particles are filtered from a fluid by the slits between the adjacent filtering elements. Adjustment of the slit widths permits trapped particles to be removed by back-washing. A power cylinder permits automatic filtering and back-washing.