Patent ID: 9540021
Date: 2017-01-10
CPC Classifications: B61H,F16D

Claim:
1. A contaminant mitigation device for use with a slack adjuster for a railway brake rigging, said slack adjuster including a main housing portion, a cone nut housing portion enclosing a critical operating area of the slack adjuster, a rod guide associated with the cone nut housing portion, and an overtravel housing portion, said contaminant mitigation device comprising a sealing system for sealing the critical operating area against entrance of fluid and/or contaminants therein or to reduce exposure of the critical operating area to fluid and/or contaminants wherein the sealing system includes at least one of: (a) a sealing member positioned between a threaded engagement between the rod guide and an end of the cone nut housing portion; (b) at least one sealing member associated with each of a trigger pin positioned within the rod guide; and (c) a sealing member associated with a conical spring or conical spring seat member located at an end of the cone nut housing portion.