US Patent:
20170138377, May 18, 2017
Inventors:
- Houston TX, US
Eric Dale Larson - Houston TX, US
Jamie Clay Gamble - Houston TX, US
Wayne Harvey - Houston TX, US
Alexander McAuley - Houston TX, US
Juan Pedro Trevino - Houston TX, US
International Classification:
F15B 15/14
Abstract:
A mechanism to reduce load of a hydraulic cylinder having a body, a stem movable within the body, and a piston rod connected to the stem. The mechanism includes a mechanism body attached to the body and defining a recess, and a retainer attached to the mechanism adjacent the opening of the recess so that the retainer substantially fills the opening of the recess, and having an aperture that receives an end of the piston rod. The mechanism further includes a cap attached to the piston rod of the hydraulic cylinder within the recess, the cap having a diameter greater than the diameter of the aperture in the retainer, and a spring connected to the cap at a first end and to the retainer at a second end so that as the piston rod moves relative to the failsafe mechanism body, to reduce load transfer between the piston rod and the cylinder body.