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:
Apr. 16, 1991
Filed:
Apr. 30, 1987
Applicant:
Inventor:
James Lockshaw, Santa Ana, CA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
210169 ; 210240 ; 210289 ; 2103232 ; 210346 ; 2104162 ;
Abstract
A universal swimming pool water filter apparatus for a bottom opening tank comprising multiply useful dual reverse flow port means and cooperating filter medium support having various filtered water passing openings arranged to accommodate fixed cloth or free particulate filtering media, the port means flow being varied with the type of filtering medium support so that a minimum of different production parts are needed to meet all filtering needs, with a consequent reduction in manufacturing equipment and parts inventory.