Patent ID: 6820866
Filing Date: 2004-11-23
Classification: A61F,F16F,F41C

Abstract:
A shock absorbing apparatus for reducing shock as a result of an applied force, the apparatus comprising:a housing having a first end and a second end; a bellows device mounted in the housing and dividing the housing into a first chamber between the first end and bellows device, and a second chamber between the bellows device and the second end; the second chamber being filled with a first fluid; the bellows device having at least a portion extending into said second chamber which is made entirely of a non-metallic, elastomeric material, and forming a third chamber which is filled with a second fluid, the third chamber having a first end facing away from the second chamber; a piston slidably mounted in the first chamber and acting on the first end of the third chamber in a first direction in response to a force applied to the piston so as to expand the portion of the bellows device extending into said second chamber and cushion the force, whereby the bellows device returns to its original configuration and biases the piston back in a second direction opposite to the first direction on removal of the force.