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Tether for a ball

  • US 5,772,542 A
  • Filed: 02/07/1997
  • Issued: 06/30/1998
  • Est. Priority Date: 02/07/1997
  • Status: Expired due to Fees
First Claim
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1. A tether for a ball the tether comprising:

  • a primary shock cord having two free ends and a first spring constant;

    one of said two free ends adapted to be secured to stationary object; and

    a differential shock device selected to have a relatively higher sprint constant than said first spring constant, said differential shock device adapted to be secured to the other of said two free ends of said primary shock cord and attached to a ball by attaching means;

    wherein said spring constant of said differential shock device is selected to permit said differential shock device to begin stretching once said primary shock cord has stretched beyond its original length to a slightly below failure of said shock cord point.

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