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. 13, 1996
Filed:
Sep. 15, 1994
Applicant:
Inventors:
Andrew L Abrams, Westport, CT (US);
Christopher M Gaylo, Princeton Junction, NJ (US);
Assignee:
Other;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04D / ;
U.S. Cl.
CPC ...
415206 ; 415900 ; 416185 ; 4162 / ;
Abstract
A centrifugal pump for shear sensitive fluids includes a pump housing defining an interior volume. An impeller comprising at least two vanes is rotatably mounted in the housing. The impeller vanes, which preferably are airfoil-shaped, are spaced from the interior housing of the pump whereby to leave a gap between the vanes and the pump housing so as to permit a portion of the fluid in the spacing to flow smoothly over the top contour of the impeller vanes.