Document Type and Number:
Japanese Patent JPH045863
Kind Code:
B2
Abstract:
In a method for manufacturing a sealing ring with a sealing lip, the material forming the sealing lip is fabricated in plastically deformable condition into the shape of a column-like hollow body. Prior to solidification, the column-like hollow body is twisted between axially spaced cross-sectional planes. This forms return elements with hydrodynamic action. Subsequently, the hollow body is solidfied and its diameter is enlarged axially outside the region of the sealing lip and it is then secured in a sealing ring housing.
Inventors:
GYUNTAA GURAFU
HAINTSU GUROOSU
SHUTEFUAN SHUHONAGERU
HAINTSU GUROOSU
SHUTEFUAN SHUHONAGERU
Application Number:
JP9502987A
Publication Date:
February 03, 1992
Filing Date:
April 17, 1987
Export Citation:
Assignee:
FREUDENBERG CARL
International Classes:
B29C57/00; B29D99/00; F16J15/32; B29C43/00
Next Patent: SEMICONDUCTOR DEVICE