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:
Aug. 06, 1996
Filed:
May. 23, 1994
Applicant:
Inventor:
Bengt-Ake Brandt, Sundbyberg, SE;
Assignee:
ITT Flygt AB, Solna, SE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04D / ;
U.S. Cl.
CPC ...
415 582 ; 415106 ; 4161 / ;
Abstract
Notches in the impeller cooperate with balancing holes therein, and a liquid-receiving slot, to direct liquid across the leading edges of impeller vanes to flush away any accreted substances therefrom. In addition, a large diameter deflector coupled to the hub of the impeller also cooperates with the notches to deflect the flushing liquid in the direction of the main liquid flow through the impeller.