Swing gate operator

Movable or removable closures – With operator for movably mounted closure – Operating lever or link and closure swing about parallel axes

Patent

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Details

49339, E05F 1124

Patent

active

057523444

ABSTRACT:
A gate opening and closing apparatus, typically referred to as a "gate operator" and which automatically moves a gate, such as a swinging gate between opened and closed positions. The gate operator of the invention employs a power unit, such as an electrically motor driven power unit which rotates a power arm. A crank arm is releasably connected to the power arm and movable therewith. In addition, the crank arm is, in turn, connected to a connecting arm which has one end connected to the gate for movement of the gate. The invention relies upon the use of a swing movement control mechanism in place of stop rings which were previously used to control the limits of movement of the gate. The swing movement control mechanism comprises a swing movement control plate shiftable along the crank arm so that the connecting arm which is also pivoted on the swing movement control plate can be connected to a gate having a desired swing or so-called "throw". The swing movement control mechanism includes an upstanding toggle which controls limit of movement of the connecting arm and also includes a pair of downwardly projecting flanges which also limits the movement of the connecting arm.

REFERENCES:
patent: 4330958 (1982-05-01), Richmond
patent: 4403449 (1983-09-01), Richmond
patent: 4429264 (1984-01-01), Richmond
patent: 5557825 (1996-09-01), Harr

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