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MULTI-STAGE SPRING SYSTEM

  • US 20090261517A1
  • Filed: 04/21/2008
  • Published: 10/22/2009
  • Est. Priority Date: 04/21/2008
  • Status: Active Grant
First Claim
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1. A multiple-stage spring system, comprising:

  • a spring assembly having at least one resilient element, wherein the spring assembly has a first spring constant when deflected up to a first distance, a greater, second spring constant when deflected beyond the first distance and up to a second distance, and a greater, third spring constant when deflected beyond the second distance and up to a third distance, and wherein the spring assembly stores mechanical energy when deflected towards a contact surface that biases the spring assembly away from the contact surface when released.

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