Patent ID: 6450306
Filing Date: 2002-09-17
Classification: F16F

Abstract:
A dashpot comprising an inner cylinder within an outer cylinder; a piston traveling back and forth inside said inner cylinder on an end of a piston rod and dividing the inner cylinder into two chambers; said piston rod entering the cylinders through an opening at one end, said opening sealing off and positioning said piston rod; a base at an end of said outer cylinder opposite said end with the opening; said inner cylinder being centered along an axis of the outer cylinder at each end; a cylindrical gap between the two cylinders; a fluid-accommodating compartment in a port opening into an adjacent one of said chambers, a vent above said port in said one chamber; mutually contacting ends of the cylinders being welded together at one of the ends, at least one end of said outer cylinder lying against an end of said inner cylinder, said end of said outer cylinder being welded to said end of said inner cylinder.