US PATENT SUBCLASS 318 / 753
.~.~.~ With de-energizable start winding

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


318 /   HD   ELECTRICITY: MOTIVE POWER SYSTEMS

727  DF  INDUCTION MOTOR SYSTEMS {12}
739  DF  .~ Reversing {5}
749  DF  .~.~ Operating from a single phase source {3}
753.~.~.~ With de-energizable start winding {2}
754  DF  .~.~.~.~> With separate winding or winding portion energized for each direction of rotation
755  DF  .~.~.~.~> Automatic current reversal on start winding

DEFINITION

Classification: 318/753

With de-energizable start winding:

(under subclass 749) Subject matter wherein the primary member includes a run and a start winding and the reversing means includes means to apply power to both of the windings and to cut out the start winding after the motor has come up to speed.

(1) Note. In this subclass and in the subclasses indented hereunder are manual, relay, and solid-state type switching to reverse the phase of the start winding with respect to the run winding of the motor so that the rotation of the motor rotor can be reversed.

(2) Note. The means to remove the start winding includes manual, centrifugal, and electromagnetic means.