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Closure assembly with protective lock

  • US 4,345,448 A
  • Filed: 09/28/1978
  • Issued: 08/24/1982
  • Est. Priority Date: 09/01/1977
  • Status: Expired due to Term
First Claim
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1. A gate locking system for securely closing an opening comprisinga pair of opposed channeled guide tracks, one of said tracks having a fixed ear extending therefrom with an aperture through said ear and having a hole therethrough adjacent said ear;

  • a gate movable within said tracks between open and closed positions;

    said gate including at least one recessed portion with an aperture therethrough;

    a bracket having a flat plate with a slot therein for receiving said ear, a pin extending perpendicularly from one surface of said plate adjacent said slot, and a barrier member extending from said plate in a plane substantially perpendicular to said plate and from said one surface thereof;

    said bracket being placed on said one track so that said ear extends through said slot to expose said ear aperture, said pin extends through said gate aperture and said track hole to lock said gate, and said barrier member extends across a portion of the mouth of said one track and engages said gate recessed portion to lock said gate and block access to said pin when said gate is in said closed position; and

    a lock within which said ear is received with a portion of said lock extending through said ear aperture to secure said bracket to said track;

    whereby the engagement of said pin with said gate aperture and said track hole constitutes a primary locking mechanism, and the engagement of said barrier with said recessed portion of said gate provides a back-up locking mechanism as well as blocking access to said pin.

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