Patent ID: 6279914
Filing Date: 2001-08-28
Classification: F16J

Abstract:
A sealing apparatus of a lip-type seal structure, which is fixed to one of two relatively movable members and is slidable in tight contact to another one of two movable members, comprising:a reinforcing ring, made of a rigid material, having a cylindrical portion, and fixed to said one of two movable members;a stationary sealing portion mounted to the reinforcing ring so as to seal a gap between the reinforcing ring and said one of two movable members;a sealing lip supported by the reinforcing ring to be slidable in contact to said another one of two movable members;a stopper member fixed to said one of two movable members for preventing the reinforcing ring from coming off through axial engagement with the stopper member,the cylindrical portion of said reinforcing ring expanding into an engagement area of a larger diameter near said one of two movable members thus increasing an engagement area with said stopper member.