Spring devices – Vehicle – Mechanical spring and nonresilient retarder
Patent
1990-04-25
1992-04-14
Butler, Douglas C.
Spring devices
Vehicle
Mechanical spring and nonresilient retarder
188298, 18832222, 18832217, 213 40D, 213 45, 267293, 2671411, 267153, 267294, 267152, F16F 136
Patent
active
051041014
ABSTRACT:
A buffer cartridge for absorbing energy having a hydraulic component coupled with an energy-absorbing material component, the hydraulic component having a cylinder-piston arrangement, the cylinder being surrounded by a stack of pads made from resilient energy-absorbing material, each pad being separated by a spacer. The free end of the piston emerging from the cylinder is connected to an intercoupling member which can simultaneously apply a force to both the piston and the stack of pads. A stretchable accumulator seal surrounds a piston rod within the cylinder and provides a sealing sliding path for the piston rod to isolate the moving portion of the piston rod from hydraulic fluid. The piston rod terminates in a piston having a piston hub encapsulated in resilient material and provided with orificed passageways for flow of fluid to both sides of the piston.
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Anderson David G.
Braam Hente
Butler Douglas C.
Miner Enterprises Inc.
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