Magnetic clutch
AssigneePT Components, Inc.
InventorsWilliam A. Baker, Richard Shemanske
Life of this patent
Estimating the term…
Abstract
A device is provided that begins an electrical starting mode in a parallel circuit configuration providing an improved speed of response and after an interval of time, current is switched to a series circuit configuration for operation during a run mode. The device is initially energized at several times the power normally required to activate a coil and switching means is thereafter utilized to reduce power to a normal requirement soon after the coil is energized. Specific hardware is provided in the form of schematic diagrams for defining the operation of the invention.
Claims17
Electronic switching means for controlling the operation of an electromagnetic apparatus having first and second coil winding means,
- said switching means at times connecting said first and said second coil winding means in parallel and at other times in series, whereby said first and said second coil winding means are initially energized at a maximum ampere turns start mode when connected in parallel and said first and said second coil winding means are thereafter energized to a minimum ampere turns run mode when connected in series comprising
- a power source providing energy to said first and said second coil winding means,
- first contact means disposed between said first and said second coil winding means at first sides thereof,
- second contact means disposed between said first and said second coil winding means at second sides thereof,
- third contact means disposed between said first and said second coil winding means interconnecting a first side of one of said coil winding means with a second side of the other of said coil winding means,
- whereby when said first and said second contact means are activated to an on position, said third contact means remains in an off position and said first and said second coil winding means are connected in parallel for initial start mode operation, and
- whereby when said first and said second contact means are switched to an off position, said third contact means is activated to an on position and said first and said second coil winding means are connected in series for run mode operation.
Electronic switching means for controlling the operation of an electromagnetic apparatus having first and second coil winding means, said switching means at times connecting said first and said second coil winding means in parallel and at other times in series, whereby said first and said second coil winding means are initially energized at a maximum ampere turns start mode when connected in parallel and said first and said second coil winding means are thereafter energized to a minimum ampere turns run mode when connected in series, comprising
- a power source providing energy to said first and said second coil winding means,
- first solid state switching means between said first and said second coil winding means at first sides thereof,
- second solid state switching means disposed between said first and said second coil winding means at second sides thereof,
- third solid state switching means disposed between said first and said second coil winding means interconnecting a second side of said first coil winding means with a first side of said second coil winding means,
- whereby when said first and said second solid state switching means are activated to an on position, said third solid state switching means remains in an off position and said first and said second coil winding means are connected in parallel for initial start mode operation, and
- whereby when said first and said second solid state switching means are switched to an off position, said third solid state switching means is activated to an on position and said first and said second coil winding means are connected in series for run mode operation.
Dependencies are inferred from the claim text.