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Chain barrier

  • US 6,135,190 A
  • Filed: 09/04/1998
  • Issued: 10/24/2000
  • Est. Priority Date: 03/02/1993
  • Status: Expired due to Fees
First Claim
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1. An automatic electrically operated mechanical barrier system comprising:

  • a. a first stationary object;

    b. a barrier coupled to the first stationary object and to a second stationary object;

    c. means for mechanically raising and lowering the barrier, said means coupled to the first stationary object; and

    d. means for locking the barrier in a taut, raised position which will remain locked when weight or force is applied, said means for locking coupled to the means for mechanically raising and lowering the flexible barrier.

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