Electricity: motor control systems inventions 01/07

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.

01/25/2007 > 3 patent applications in 2 patent subcategories.

20070019933 - Amperage control for protection of battery over current in power tools: Amperage control of a power tool motor is provided by pulse width modulation of current from a power supply. The pulse width modulation may be varied according to the determined motor current and measured power supply voltage. The power supply may include a battery such as lithium ion or nickel... Agent: Harness, Dickey & Pierce, P.L.C

20070019935 - Motor control device: A motor control device is used to control a motor to rotate. The motor control device includes a phase-wave signal sampling module, a first waveform modulating module, a second waveform modulating module and a control signal integrating module. The phase-wave signal sampling module outputs a first phase-wave signal and a... Agent: Birch Stewart Kolasch & Birch

20070019934 - Pulse-width modulation motor speed control circuit: A PWM motor speed control circuit (10) includes a PWM signal generator (20), a driver integrated circuit (IC) (101) and a photocoupler (30) coupled between the PWM signal generator and the driver IC. The photocoupler receives an original PWM signal generated by the PWM signal generator and outputs a new... Agent: North America Intellectual Property Corporation

01/18/2007 > 3 patent applications in 2 patent subcategories.
01/11/2007 > 3 patent applications in 2 patent subcategories.
01/04/2007 > 1 patent applications in 1 patent subcategories.

20070003258 - Anti-trap protection detection based on comparing the duty cycle of a pwm control system: In order to create a method and an apparatus for anti-trap protection detection for displaceable window and door elements by means of which faster and more stable adjustment to current physical conditions can be achieved during system actuation, in the system the motor (1) is controlled using parameter values generated... Agent: Baker Botts L.L.P. Patent Department

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