Patents by Inventor Gary P. Whelan

Gary P. Whelan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Electric motor end plate assembly with integrated motor driver transistor
    Patent number: 6525439
    Abstract: An electric motor has a housing closed at one end by an end plate assembly including a motor driver transistor. The transistor is mounted on a disk and is connected to brushes by lead frames that have ends terminating in a projection integral for connection to an electronic control unit associated with the motor.
    Type: Grant
    Filed: July 30, 2001
    Date of Patent: February 25, 2003
    Assignee: Kelsey-Hayes Company
    Inventors: Gary P. Whelan, Fred W. Sauer
  • ELECTRIC MOTOR END PLATE ASSEMBLY WITH INTEGRATED MOTOR DRIVER TRANSISTOR
    Publication number: 20030020343
    Abstract: An electric motor has a housing closed at one end by an end plate assembly including a motor driver transistor. The transistor is mounted on a disk and is connected to brushes by lead frames that have ends terminating in a projection integral for connection to an electronic control unit associated with the motor.
    Type: Application
    Filed: July 30, 2001
    Publication date: January 30, 2003
    Inventors: Gary P. Whelan, Fred W. Sauer
  • Modulated voltage for a solenoid valve
    Patent number: 6493204
    Abstract: A circuit for actuating an ABS solenoid valve coil with a pulse width modulated voltage having a constant frequency and variable duty cycle. The coil current is a function of the duty cycle of the pulse width modulated voltage. By controlling the duty cycle, current saturation of the coil can be avoided to provide for a faster response upon deactuation of the coil. Feedback is included in the circuit to verify correct functioning of electrical components.
    Type: Grant
    Filed: August 30, 1999
    Date of Patent: December 10, 2002
    Assignee: Kelsey-Hayes Company
    Inventors: David J. Glidden, Daniel D. Moore, Gary P. Whelan
  • Dual FET driver circuit
    Patent number: 5939908
    Abstract: A driver circuit for supplying an electric current to a device having a pair of power FET's connected in series between the device and a power supply.
    Type: Grant
    Filed: June 27, 1997
    Date of Patent: August 17, 1999
    Assignee: Kelsey-Hayes Company
    Inventors: Daniel D. Moore, Gary P. Whelan, Kenneth C. Earl