Patent ID: 11904263
Assignee: ENTEGRIS, INC.
Field: Chemical engineering (Chemistry)
Classification: CPC B | IPC B

Claim 8:
9. A filter assembly, comprising:
a manifold including an upper plate and a lower plate;
a filter removably attached to the manifold and including a port with an inner wall;
a connector pipe extending through the lower plate and the upper plate of the manifold and inserted into the port of the filter, the connector pipe including a flange disposed between the upper plate and the lower plate; and
an O-ring compressed between the connector pipe and the inner wall of the port, wherein
the flange has a width configured to prevent tilting of the connector pipe at greater than a maximum tilt angle, the maximum tilt angle based on at least one of a compression ratio upper limit and a compression ratio lower limit of the O-ring,
wherein the flange satisfies the following relationship:, L
    ·
    h
   
   
    
     (
     
      
       C
       U
      
      -
      C
     
     )
    
    ·
    
     T
     O
    
   
  
  ≤
  W
  ≥
  
   
    L
    ·
    h
   
   
    
     (
     
      C
      -
      
       C
       L
      
     
     )
    
    ·
    
     T
     O
    
   
  
 

W being the width of the flange of the connector pipe,
C being a compression ratio of the O-ring,
CL being the compression ratio lower limit of the O-ring,
CU being the compression ratio upper limit of the O-ring,
TO being a thickness of the O-ring without compression,
L being a length between the flange and the O-ring, and

h being a height of a gap provided between the flange and at least one of the upper plate and the lower plate of the manifold.