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. 24, 1976
Filed:
Feb. 15, 1974
Applicant:
Inventors:
Ernest J Martin, Rolling Meadows, IL (US);
Arvid A Molitor, Elgin, IL (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01F / ;
U.S. Cl.
CPC ...
261 91 ; 261120 ;
Abstract
Between the vertical tube walls and the blades of the rotating impeller are four vanes attached to the tube walls. In the area radially about the impeller, the vanes are pitched in a direction opposite to the pitch of the impeller blades. The impeller is rotated in a direction such as to force the water downwardly. The top of the tube is below the normal surface of the water and the vanes are inclined from the top to the bottom of the tube. The impeller is rotated at a speed sufficient to produce a vortex from the top of the tube to approximately the top of the impeller.