Patent ID: 8590677
Filing Date: 2013-11-26
Classification: F16F

Abstract:
1. A shock absorber comprising: a cylinder; a piston valve connected to a piston rod within the cylinder to divide the cylinder into a first chamber and a second chamber; a hollow chamber formed within the piston rod; first and second orifices formed in upper and lower ends of the hollow chamber and in fluid communication with the first and second chambers, respectively; a floating piston disposed within the hollow chamber to move up and down and to divide the hollow chamber into upper and lower chambers; and a mechanism positioned in the hollow chamber to move an operating fluid above and below the floating piston, wherein the moving mechanism includes a flexible moving plate disposed within the floating piston and configured to be deformed toward the upper or lower chamber during operation, wherein the floating piston comprises a ring, the ring having an inner surface, at least a portion of an outer circumference of the flexible moving plate being coupled to at least a portion of the inner surface of the ring at a coupling location, and wherein at least a portion of the flexible moving plate is above the coupling location when the flexible moving plate is deformed toward the upper chamber and is below the coupling location when the flexible moving plate is deformed toward the lower chamber.