Movable or removable closures – With operator for movably mounted closure – Closure-mounted drive
Patent
1983-09-02
1985-06-04
Downey, Kenneth
Movable or removable closures
With operator for movably mounted closure
Closure-mounted drive
49396, 49 25, E05F 1100
Patent
active
045205922
ABSTRACT:
A gate opener (14) is disclosed for attachment to a pre-existing gate (10) mounted for pivotal motion to a post (12). The gate opener includes a controller (30) for activation by an operator from a remote location, such as a vehicle, to transmit a signal of predetermined frequency to a receiver (32) mounted by the gate. The receiver (32) activates a relay to initiate operation of an electric motor (34) to open or close the gate. The rotating motion of the motor shaft is transferred through a set of pulleys (37, 39), a belt (43), gears (48, 54) and a chain (58) to a wheel (38) in contact with the ground. A gate opener (100) forms a second embodiment of the invention. The gate opener (100) is supported by a parallel arm hinge assembly (104) so that substantially the entire weight of the gate opener (100) is supported on the ground (40) through the ground wheel (132) to provide traction to the ground wheel. An open limiter switch (136) and a closed limiter switch (138) cooperate with adjustable contacts (140, 142) to deactivate the motor upon movement of the gate (10) into the opened or closed positions to permit the motor (116) and ground wheel (132) to continue rotation until the gate is either opened or closed.
REFERENCES:
patent: 1631416 (1927-06-01), Howard
patent: 1694431 (1928-12-01), Russell et al.
patent: 2827284 (1958-03-01), Bunzl
patent: 3606699 (1971-09-01), Robinson, Jr.
patent: 3988860 (1976-11-01), Nevarez
patent: 4231190 (1980-11-01), Tieben
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