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:
Jun. 04, 1996
Filed:
Mar. 30, 1994
Applicant:
Inventors:
Alexander Nicklas, Dirmstein, DE;
Jurgen Schill, Weisenheim, DE;
Assignee:
KSB Aktiengesellschaft, Frankenthal, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04D / ;
U.S. Cl.
CPC ...
4151991 ; 4151992 ;
Abstract
The invention relates to a vertical barrel pump, in which components, constructed as separate inserts in the form of a guide wheel insert, a radially and/or axially developed spiral insert and a diffuser-shaped pressure connecting piece insert are disposed in the region of the last pump stage to improve the efficiency of the multi-stage pump.