Electricity: motor control systems inventions 04/06

Recently published patent applications awaiting approval from the USPTO. Recent week's RSS XML file available below.
Listing format for abstract view: USPTO application #, Title, Abstract excerpt,Patent Agent. Listing format for list view: USPTO National Class full category number, title of the patent application. 04/27/2006 > patent applications in patent subcategories.
04/20/2006 > 1 patent applications in 1 patent subcategories.

20060083490 - Multi-speed motor system combining at least a one speed electric motor, series resistor and power switches: A multi-speed permanent magnet D.C. electric motor system 10 includes at least one permanent magnet DC electric motor 11 configured to operate at at least one speed. A current limiting device R1 is constructed and arranged to lower electrical input power to the motor 11 so that a speed of...

04/13/2006 > 1 patent applications in 1 patent subcategories.
04/06/2006 > 1 patent applications in 1 patent subcategories.

20060072911 - Method and control circuit for driving an electric motor of a seatbelt retractor: An electric motor drives a belt spool of a seatbelt retractor in a vehicle using a micro-controller and a drive circuit that drives the electric motor. A plurality of PWM control signal sources are provided each of which has a trigger input and a control signal output. Each control signal...

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