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:
Nov. 07, 2000
Filed:
Dec. 20, 1999
Applicant:
Inventor:
Mark B Robertson, Gainesville, FL (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A01K / ;
U.S. Cl.
CPC ...
210786 ; 210169 ; 2104162 ; 210354 ; 210263 ; 119259 ;
Abstract
Improved fluidized bed filters are described and claimed. The filters are exemplified for use in aquarium systems. A preferred embodiment of the filter of the subject invention comprises a cylinder having an inlet port. Water is pumped into the inlet port. The force of the water fluidizes the filter medium within the cylinder. Filtered water escapes the system over the open end of the cylinder or through an outlet channel.