Patent ID: 7854092

Claim:
A gate system comprising, in combination: first and second sides spaced from each other and defining a work area therebetween, with each of the first and second sides including first and second ends, with a first opening being defined between the first ends of the first and second sides, and with a second opening being defined between the second ends of the first and second sides and opposite to the first opening; a first shaft rotatably supported by one of the first and second sides; a second shaft rotatably supported by one of the first and second sides; a first gate pivotably mounted relative to the first end of one of the first and second sides, with the first gate being coupled with the first shaft to rotate therewith, with the first gate defining a first plane for closing or opening the first opening, with the first gate being pivotably movable in the first plane about a first pivot axis perpendicular to the first plane between a first open position allowing passage to and from the work area through the first opening and a first closed position preventing passage through the first opening; and a second gate pivotably mounted relative to the second end of one of the first and second sides, with the second gate being coupled with the second shaft to rotate therewith, with the second gate defining a second plane for closing or opening the second opening, with the second gate being pivotably movable in the second plane about a second pivot axis perpendicular to the second plane between a second open position allowing passage to and from the work area through the second opening and a second closed position preventing passage through the second opening, with the first and second shafts being rotatably interconnected wherein pivoting of one of the first and second gates in a direction causes pivoting of the other of the first and second gates in an opposite direction, with the first and second gates pivoting simultaneously in opposite directions, with the first gate being in the first open position when the second gate is in the second closed position, and with the first gate being in the first closed position when the second gate is in the second open position.