US2011217200A1PendingUtilityA1

Vacuum pump

Assignee: HESS BERNDPriority: Nov 20, 2008Filed: Jul 30, 2009Published: Sep 8, 2011
Est. expiryNov 20, 2028(~2.3 yrs left)· nominal 20-yr term from priority
F04C 29/126F04C 18/3442F04C 2220/10F16K 15/148F16K 27/0209
36
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Claims

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.

Claims

exact text as granted — not AI-modified
1 - 10 . (canceled) 
     
     
         11 . 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.   
     
     
         12 . The vacuum pump of  claim 11 , wherein said housing bottom has a mounting location for a holding section of said valve body. 
     
     
         13 . The vacuum pump of  claim 12 , wherein said mounting location is constituted as an opening. 
     
     
         14 . The vacuum pump of  claim 12 , wherein said mounting location penetrates right through said housing bottom. 
     
     
         15 . The vacuum pump of  claim 12 , wherein said mounting location has a hollow cylindrical or a regular cylindrical cross-section. 
     
     
         16 . The vacuum pump of  claim 12 , wherein said mounting location is constituted without undercuts. 
     
     
         17 . The vacuum pump of  claim 12 , wherein said valve body comprises elastic, rubber-elastic, stainless steel or spring steel. 
     
     
         18 . The vacuum pump of  claim 12 , wherein said holding section is constituted in the shape of a pin or in the shape of a cylinder. 
     
     
         19 . The vacuum pump of  claim 11 , wherein said holding disk retains said holding section in said housing bottom. 
     
     
         20 . A suction non-return valve for the vacuum pump of  claim 11 .

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