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.

Date of Patent:
Jun. 21, 1983

Filed:

Nov. 25, 1980
Applicant:
Inventor:

Hannu Sarvanne, Vantaa, FI;

Assignee:

Oy E. Sarlin AB, Helsinki, FI;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04D / ; F04D / ;
U.S. Cl.
CPC ...
4152 / ; 415206 ; 415207 ; 4152 / ;
Abstract

A centrifugal pump with a housing which has circular shape in the direction of the circumference and which has on its circumference an exit tube commencing at an exit port tangentially with reference to the flow, where the length of the exit port in the direction of the housing's circumference is about .pi./4R and where the outer wall of the exit tube constitutes a diverging bulge on outward transition from the circumference. The outer wall of the exit tube, projecting under an angle about 45 degrees from the circumference of the housing, consists of an arc having the center of its radius (r) approximately at the juncture of the opposite wall of the exit tube and the housing circumference.


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