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:
Feb. 02, 1993
Filed:
Dec. 13, 1991
Applicant:
Inventors:
Richard Rajendren, Belle Plaine, MN (US);
Peter S Gross, Plymouth, MN (US);
Eric G Bollensen, Columbia Heights, MN (US);
Assignee:
Aeromix Systems, Incorporated, Minneapolis, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01F / ;
U.S. Cl.
CPC ...
261 93 ; 384148 ;
Abstract
An apparatus for the treatment of liquid by aeration is provided. The apparatus has a motor, a propeller carried by a motor-driven shaft, an air flow passage to the propeller, bearings supporting the shaft at a location spaced from the motor and at least one bearing seal between a bearing and the propeller. In accordance with the present invention, a module for releasably carrying at least one of the bearing seals is detachably secured about the shaft to faciliate removal of at least the bearing seals from the apparatus.