Automatic gate opener

Details Automatic gate opener Automatic gate opener

1982-05-03

1983-11-22

Downey, Kenneth

Movable or removable closures

With operator for movably mounted closure

Operating lever or link and closure swing about parallel axes

E05F 1502

Patent

active

044160852

ABSTRACT:
The present invention is for an automatic gate opening device where commercial electricity is not economically available. A hydraulic cylinder operated by a bidirectional gear pump moves a cylinder rod which connects to an opening rod. The opening rod is pivotally connected to one end to the gate and on the other end to a stationary location. Due to pivotal connections and a pivotal linkage near the middle of the opening rod, the gate may be opened and closed by the hydraulic cylinder. The hydraulic cylinder is also pivotally mounted. Electronic controls may be operated by a number of different type sensors, including limit switches on the hydraulic cylinder, sensors for detecting the gate location, manual switches or other traditional vehicle approach sensors. Power is provided by a storage battery, which battery can be recharged during daylight hours at a solar panel or by a traditional battery charger.

REFERENCES:
patent: 2283577 (1942-05-01), Roby
patent: 2592891 (1952-04-01), Hall
patent: 3341813 (1967-09-01), Fletcher et al.
patent: 3619946 (1971-11-01), Crocker
patent: 3645042 (1972-02-01), Bolli
patent: 3936977 (1976-02-01), Runft
patent: 4231190 (1980-11-01), Tieben
patent: 4330958 (1982-05-01), Richmond

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