Patent · US Active

Vacuum pump

US8997781B2 · kind B2 · utility

0Cited by

6References

13Claims

0Family size

Assignee

Joma-Polytec GmbH · DE

Inventors

Hans-Peter Ott · Hirrlingen, DE
Willi Schneider · Bodelshausen, DE
Torsten Helle · Bingen, DE

Key dates

Filing date	Aug 16, 2011
Grant date	Apr 7, 2015
Priority date	—
Expiry date	Feb 17, 2032

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T137/789
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

The invention relates to a vacuum pump, in particular a vane pump, having a pump housing in which an intake chamber is provided, and a pump housing opening which feeds into the intake chamber, wherein an intake check valve is arranged in the pump housing opening and communicates with the atmosphere or feeds into an external vacuum chamber, with the intake check valve being accommodated in a pot-shaped valve housing, and with the pot-shaped valve housing having a housing bottom and a housing jacket, wherein the housing bottom is connectable to the housing jacket and the housing bottom can be snapped onto the housing jacket.

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