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Hydraulic velocity damper

  • US 6,237,959 B1
  • Filed: 12/08/1999
  • Issued: 05/29/2001
  • Est. Priority Date: 12/08/1999
  • Status: Expired due to Term
First Claim
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1. A hydraulic velocity damper, comprising:

  • a rotatable spindle body at least in part defining an irregularly shaped housing having at least one open end, the housing at least in part defining a chamber adapted to hold a fluid, the housing having at least one fluid passage to allow fluid to be displaced from within the chamber;

    a drive screw having a head portion, the drive screw positioned within the housing;

    an irregularly shaped first piston threadedly connected with the drive screw and rotatable about the drive screw;

    an irregularly shaped second piston threadedly connected with the drive screw and rotatable about the drive screw; and

    an end cap connected to the head portion of the drive screw and mounted to the open end of the spindle body, the end cap covering the open end.

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