Patent · US Active

Plastic Rotor for a vacuum pump

US10138888B2 · kind B2 · utility

0Cited by

1References

14Claims

0Family size

Assignee

Joma-Polytec GmbH · DE

Inventors

Hans-Peter Ott · Hirrlingen, DE
Bernd Hess · Leverkusen, DE
Martin Thoma · Munich, DE
Thomas Gulde · Hechingen, DE
Torsten Helle · Bingen, DE
Freidhelm Pfitzer · Rangendingen, DE

Key dates

Filing date	Jul 12, 2016
Grant date	Nov 27, 2018
Priority date	—
Expiry date	Oct 28, 2036

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF05C2225/00
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A rotor for a vane cell pump—in particular, for a vacuum pump—with a base body that is made of plastic and can be driven by rotation, and that rotates about an axis of rotation during operation, wherein the base body comprises a guiding section for slidably receiving a pump vane and wherein the base body is flanked in the direction of the axis of rotation by a first bearing surface and a second bearing surface, wherein the second bearing surface comprises bearing sections that are at a distance from one another and that lie on a circular path that is arranged concentrically to the axis of rotation.

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