Resources Contact Us Home
Hydraulic damping device for drawer

Image Number 2 for United States Patent #8025135.

A hydraulic damping device for drawer includes a cylinder holding a hydraulic fluid, a piston rod moving in and out of the cylinder and having a pin at one end inside the cylinder, a rigid valve block affixed to the inner end of the pin of the piston rod and having equiangularly spaced through holes, a retainer affixed to the outer end of the pin of the piston rod, a piston coupled to the pin of the piston rod and movable along the pin between the rigid valve block and the retainer and having a plurality of axially extending through holes, a number of the through holes of the piston being respectively aimed at the through holes of the rigid valve block for allowing the hydraulic fluid to pass through the piston in one direction at a high speed during outward stroke of the piston rod and to pass through the piston in the other direction at a low speed during inward stroke of the piston and a plurality of spring strips for stopping against the rigid valve block, and a shock absorbing device that buffers the impact of the rigid valve block when the piston rod is extended out of the cylinder.

  Recently Added Patents
Antibodies to Clostridium difficile toxins
Stroboscopic image modulation to reduce the visual blur of an object being viewed by an observer experiencing vibration
Method and apparatus for communication channel error rate estimation
Methods of implanting dopant ions
Floor relief for dot improvement
  Randomly Featured Patents
Wall lamp
Antenna mounting device
Rotary recording medium which is playable in still picture, slow-motion and normal reproduction modes
Field effect transistor having a MIS structure and method of fabricating the same
Optical reader
PM stepping motor having a stator assembly
High-performance addressing and routing of data packets with semantically descriptive labels in a computer network
Electrical cables having low resistance and methods of making the same
Tow hook activated brake release method and apparatus
Method for forming metal line of semiconductor device