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US 2011/0217200 A1Published application
Vacuum pump
OwnerBernd Hess, dipl-ing Willi Schneiderinventors
Life of this patent
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Abstract
The invention relates to a vacuum pump, in particular a vane cell pump, having a housing in which a suction space is provided, and a housing passage opening into the suction space, wherein a suction non-return valve opening to the outside or into an external vacuum space is arranged in the housing passage, said valve being accommodated in a pot-shaped housing, the pot-shaped housing having a housing bottom and a housing jacket, wherein the housing bottom is integral with the housing jacket.
Claims11
1-10. (canceled)
A vacuum pump or a vane cell pump, the pump comprising:
- a pump housing defining a suction space and having a pump housing passage, opening into the suction space;
- and
- a suction non-return valve configuration disposed in said pump housing passage, said valve configuration opening to an outside or into an external vacuum space, wherein said valve configuration comprises a suction non-return valve disposed in a pot-shaped valve housing having a housing bottom and a housing jacket, said housing bottom being integral with said housing jacket, wherein said housing bottom of said pot-shaped valve housing has an edge that extends said housing jacket beyond said housing bottom, said valve configuration further comprising a holding disk that is pressed into an intermediate space formed by said edge that protrudes beyond said housing bottom, wherein a valve body is disposed between said housing bottom and said holding disk.
Dependencies are inferred from the claim text.