Patent ID: 6854697
Filing Date: 2005-02-15
Classification: F16B,F16M,Y10T

Abstract:
1. A stopper device comprising: a stopper; a first tubular member; a second tubular member fitting inside said first tubular member; said stopper controlling movement of said second tubular member with respect to said first tubular member; a stopper supporting member, fitted to an outer surface of said first tubular member, supporting said stopper; said stopper supporting member having a first end and a second, opposite end; said second end being proximate to a location where said second tubular member slides in and out of said first tubular member; a first diameter of said first end being greater than a second diameter of said second end; at least a third tubular member fitting inside said second tubular member; at least a second stopper controlling movement of said third tubular member with respect to said second tubular member; at least a second stopper supporting member fitted to an outer surface of said second tubular member; said second stopper supporting member having a third end and fourth, opposite end; said second end of said stopper supporting member having substantially the same outer dimensions as said third end of said second stopper supporting member, wherein said stopper supporting member has a tapered shape, with a diameter gradually increasing from said second end to said first end, said second stopper supporting member has a tapered shape, with a diameter gradually increasing from said fourth end to said third end, and said stopper supporting member and said second stopper supporting member are formed with different outer dimensions.