Patent · US Expired

Housing part for a propeller pump

US6042332A · kind A · utility

3Cited by

8References

3Claims

0Family size

Assignee

KSB Aktiengesellschaft · DE

Inventors

Wolfgang Kochanowski · Windesheim, DE
Ruediger Hamann · Bodenwerder, DE
Walter Ryborz · Bodenwerder, DE

Key dates

Filing date	Apr 22, 1998
Grant date	Mar 28, 2000
Priority date	—
Expiry date	Apr 22, 2018

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF04D29/548
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A housing for surrounding the impeller of a propeller pump, the housing having a gap ring disposed in a housing bore in the interior thereof, the gap ring being open at its circumference and in the uninstalled state having an outside diameter which is greater than the diameter of the bore which receives it, while in the installed state being pressed with bias against the housing bore which accommodates it due to the reduction of the ring's diameter. The gap ring of the invention which is open at its circumference advantageously reduces the cost of manufacture and assembly of gap rings for propeller pumps.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.