Gate operator providing impact reduction at a fixed end position

Details Gate operator providing impact reduction at a fixed end position Gate operator providing impact reduction at a fixed end position

1998-03-06

1999-08-24

Shoop, Jr., William M.

Electricity: motive power systems

Motor-reversing

49138, H02P 100

Patent

active

059428678

ABSTRACT:
A gate operator which provides for an opening and closing movement of a gate in response to an external opening and closing signal. The gate operator of the invention cushions the movement and reduces the impact against a fixed member at the fully opened and/or fully closed positions with a magnetically operable gate repelling and gate attracting arrangement. The repelling and attracting arrangement functions as a switching system and comprises a first magnetically operable member, such as a permanent magnetic, on a fixed member at the end position, or otherwise on the gate, and an electromagnet on the other of the fixed member or gate. In this way, the magnetically operable system applies a momentary force to the gate in opposition to the movement to that end position and then releases the force to reduce impact with any abutment at that end position. The magnetic force is then reversed and provides a magnetic locking action when the gate is at that end position.

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