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:
Jul. 12, 1983
Filed:
Feb. 25, 1981
Applicant:
Inventors:
Douglas P Cornelius, Brooklyn Park, MN (US);
Charles G Erickson, Anoka, MN (US);
Assignee:
Cornelius Products Inc., Brooklyn Center, MN (US);
Primary Examiner:
Int. Cl.
CPC ...
E04H / ; B01D / ;
U.S. Cl.
CPC ...
210169 ; 2104162 ; 210445 ; 210453 ;
Abstract
A power driven cleaning device for an aquarium includes filter suspended in the aquarium tank and through which water is circulated by an impeller. A first filter pad is followed by a filter cartridge, each of which spans the flow path, and which are clamped in place by a removable cover, for service.