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Gate regulator

  • US 7,631,459 B2
  • Filed: 11/13/2007
  • Issued: 12/15/2009
  • Est. Priority Date: 06/24/2003
  • Status: Expired due to Fees
First Claim
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1. A method of controlling the swinging of a gate in a box comprising the steps of:

  • a. swinging the gate without restriction from a closed position to an open position;

    b. controlling the gate to swing from the open position to a release position; and

    c. swinging the gate freely from the release position to the closed position by;

    i. providing a fluid cylinder having a cylinder pin;

    ii. receiving the cylinder pin in a selected one of a first and second slots of an L-shaped slot when the gate swings from the open position toward the closed position; and

    iii. releasing the selected slot of the L-shaped slot from the cylinder pin when the gate is at the release position thereof by;

    i. providing a trip lever and a stop arm on the cylinder pin;

    ii. contacting the trip lever with the box, and contacting the stop arm with the mounting plate; and

    iii. holding the cylinder pin stationary relative to the box, and sliding the selected slot over the cylinder pin until the junction of the L-shaped slot is at the cylinder pin and thereby releases the selected slot from the cylinder pin.

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