The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 14, 1992
Filed:
Apr. 25, 1990
David G Anderson, Chesterton, IN (US);
Hente Braam, Huntley, IL (US);
Miner Enterprises, Inc., Geneva, IL (US);
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.