Patent ID: 9133902
Filing Date: 2015-09-15
Classification: F16F

Abstract:
1. An energy absorption device comprising: an external cylinder housing member having a distal end, a proximal end, and an interior wall; a shock tube being rotatably secured within the external cylinder and having: a piston including a head portion and a rod portion, the head portion being slidably retained within the shock tube, and the rod portion extending from the head portion through the proximal end of the external cylinder and configured to be engaged with an external body in motion; an accumulator, contained within the external cylinder, to collect fluid from the interior of the shock tube when the head portion of the piston moves toward the distal end of the external cylinder; and a flow channel formed on the interior wall of the external cylinder, substantially extending along the length of the external cylinder, and in fluid communication with the accumulator, relative rotation between the shock tube and the external cylinder changing which part of the tapered patch interfaces the flow channel to adjustably change the rate of fluid flow out of the shock tube, through the group of inline holes, through the tapered patch, through the flow channel, and into the accumulator, said rotation changing dampening of the energy absorption device.