Patent · US Active

Screw spindle pump having a stop surface axially adjacent to an end surface of a running spindle

US11486392B2 · kind B2 · utility

2Cited by

6References

20Claims

0Family size

Assignee

LEISTRITZ PUMPEN GMBH · DE

Inventors

Ralf Richter · Wuppertal, DE
Oliver Trossmann · Oberasbach, DE

Key dates

Filing date	Aug 10, 2021
Grant date	Nov 1, 2022
Priority date	—
Expiry date	Aug 10, 2041

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF04C2270/17
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A screw spindle pump, including a housing and a drive spindle accommodated therein and at least one running spindle which meshes with the latter and which has in each case two terminal end surfaces. A stop surface is provided axially adjacent to at least one end surface of the running spindle, wherein the running spindle is accommodated displaceably with an axial clearance perpendicular to the stop surfaces.

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