Process of making a seal with grooved surface

Details Process of making a seal with grooved surface Process of making a seal with grooved surface

1995-10-30

1997-05-20

Tentoni, Leo B.

Plastic and nonmetallic article shaping or treating: processes

Laser ablative shaping or piercing

264154, B29C 3508

Patent

active

056309805

ABSTRACT:
A rod or piston seal with a seal body made of a polymeric material, which contacts the surface that is being sealed and is capable of relative displacement with a sealing surface. The sealing surface is interrupted in the movement direction by at least two grooves, extending in the peripheral direction, that have a spacing between them. The spacing consists of at least one land that extends in the axial direction between the mutually adjacent grooves, such that the ratio A between the width of the land and the width of the grooves in the movement direction is 1:2 to 200:1, the ratio B between the width and depth of the grooves is 10:1 to 1:5, and the depth of the grooves has a value of 1 to 200 .mu.m.

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