Patent ID: 9599226
Date: 2017-03-21
CPC Classifications: F16J

Claim:
1. A pressure released wiper assembly, for a cylinder with a rotating or reciprocal relatively moving rod or piston, configured to be freely placed and captured in a circular groove in a cylinder wall of said cylinder, the wiper assembly comprising: a ring-shaped filter holder with a V- or U-shaped cross section with a V- or U-shaped opening in an axial direction, said V- or U-shaped opening facing towards a potential contaminated side of the wiper assembly; one or more filters, and a fixing device, wherein the filter holder is one homogenous component and comprises: wherein said fixing device is releasably fixed to said ring-shaped filter holder and fixes said one or more filters in said ring-shaped filter holder, and said one or more filters are arranged to cover the one or more through openings.