Patents by Inventor David M. Garrett

David M. Garrett 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).

  • Patent number: 5413539
    Abstract: An electronically controlled multiply ratio transmission for an automotive vehicle powertrain having a hydrokinetic torque converter with a bypass clutch, solenoid operated shift valves under the control of an electronic microprocessor that receives signals from an output shaft speed sensor, an engine speed sensor, a driver controlled drive range selector position, an engine throttle position sensor, and other powertrain operating variables, the bypass clutch having a controlled slip characteristic.
    Type: Grant
    Filed: January 26, 1994
    Date of Patent: May 9, 1995
    Assignee: Ford Motor Company
    Inventors: Allan S. Leonard, Kenneth G. Walega, David M. Garrett, Thomas L. Greene, John A. Daubenmier, Bruce J. Palansky, Lawrence H. Buch
  • Patent number: 5305663
    Abstract: An electrically controlled multiple ratio transmission for an automotive vehicle powertrain having a hydrokinetic torque converter with a bypass clutch, solenoid operated shift valves under the control of an electronic microprocessor that receives signals from an output shaft speed sensor, an engine speed sensor, a driver controlled drive range selector position, an engine throttle position sensor, and other powertrain operating variables, the solenoid shift valves forming a part of a simplified control valve circuit having a minimum number of shift valve elements and simplified circuit pressure modifier elements for effecting optimum pressures in fluid pressure operated servos for the transmission clutches and brakes during ratio changes, the bypass clutch having a controlled slip characteristic.
    Type: Grant
    Filed: August 10, 1992
    Date of Patent: April 26, 1994
    Assignee: Ford Motor Company
    Inventors: Allan S. Leonard, Kenneth G. Walega, David M. Garrett, Thomas L. Greene, John A. Daubenmier, Bruce J. Palansky, Lawrence H. Buch
  • Patent number: 4393066
    Abstract: The instant invention relates to a method for treating vesicular lesions comprising the topical application at the lesion site to a patient suffering from said lesions of an amount of folic acid effective for treating said lesions.
    Type: Grant
    Filed: June 5, 1981
    Date of Patent: July 12, 1983
    Inventors: David M. Garrett, Wallace R. Robin