Patents by Inventor Harry Charles Buchanan

Harry Charles Buchanan 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: 6430875
    Abstract: A power drive system is adapted for a sliding door mounted on at least one side of a vehicle for sliding movement forwardly and rearwardly of the vehicle. The system includes a reversible motor. A bracket is guided within a guide along a fixed path between the opened and closed positions of the door. An elongated drive member is slidably disposed within the guide and connected to the bracket at one end for driving the bracket along the fixed path. A translator mechanism operably engages with the drive member for powering movement of the door. The translator mechanism can include a rotatable hub, operably engageable with the drive member, a gear transmission for driving the hub, and a clutch mechanism for connecting the motor to the transmission. The translator mechanism preferably has sufficient power to pull the sliding door into a primary latch position with respect to the corresponding portions of a latch mechanism attached to the door and frame defining the door opening.
    Type: Grant
    Filed: October 25, 1999
    Date of Patent: August 13, 2002
    Assignee: Valeo Electrical Systems, Inc.
    Inventors: Marian E. Clark, Harry Charles Buchanan, Jr., James A. Jackson, Jr.
  • Publication number: 20020084675
    Abstract: The present invention is a method and apparatus of performing vehicle obstruction sensing during vehicle reverse and liftgate opening movements. The invention uses the same sensors to perform both functions. When the vehicle is in reverse, the invention produces a visible and/or audible signal to the operator of the vehicle when an obstruction detected within the monitoring range of the sensor or sensors. When the vehicle transmission is in any position other than park, the liftgate driver is disabled. When the vehicle is in park, the liftgate sensing system is enabled. The invention either stops the liftgate opening movement or reverses the liftgate movement when an obstruction is detected. The invention can also signal an alarm when an obstruction is detected in the path of the liftgate. The present invention incorporates any number of existing sensors.
    Type: Application
    Filed: December 28, 2000
    Publication date: July 4, 2002
    Inventors: Harry Charles Buchanan, Richard L. Ponziani
  • Publication number: 20020083765
    Abstract: A moisture sensing device for detecting moisture on a moisture collecting surface including an air pump for accelerating the formation of moisture on the moisture collecting surface. The moisture sensing device includes a moisture sensor that is operably positionable relative to a moisture collecting surface. The device also includes an air pump for accelerating the formation of moisture on the moisture collecting surface. A small pump can direct a flow of air over the moisture collecting surface to accelerate the formation of moisture through condensation.
    Type: Application
    Filed: December 28, 2000
    Publication date: July 4, 2002
    Inventor: Harry Charles Buchanan
  • Publication number: 20020086587
    Abstract: A hatch assembly for a vehicle wherein the components to be installed within the tailgate or the hatch are interconnected. The components can include one or more of a wiper drive motor, a cargo light, a center high mounted stop light, a fluid sprayer, a latch, a wiper light and the vehicle hatch. The assembly can include corresponding shaped features on respective components so that the components can be interconnected without the use of additional fasteners. Electrical connections are also made between the components of the assembly. The electrical connections are embedded within the walls of the components, the cover, and/or the shaped features that provide the mechanical connections between the enclosures.
    Type: Application
    Filed: December 28, 2000
    Publication date: July 4, 2002
    Inventor: Harry Charles Buchanan
  • Publication number: 20010022049
    Abstract: A power drive system is adapted for a sliding door mounted on at least one side of a vehicle for sliding movement forwardly and rearwardly of the vehicle. The system includes a reversible motor. A bracket is guided within a guide along a fixed path between the opened and closed positions of the door. An elongated drive member is slidably disposed within the guide and connected to the bracket at one end for driving the bracket along the fixed path. A translator mechanism operably engages with the drive member for powering movement of the door. The translator mechanism can include a rotatable hub, operably engageable with the drive member, a gear transmission for driving the hub, and a clutch mechanism for connecting the motor to the transmission. The translator mechanism preferably has sufficient power to pull the sliding door into a primary latch position with respect to the corresponding portions of a latch mechanism attached to the door and frame defining the door opening.
    Type: Application
    Filed: April 11, 2001
    Publication date: September 20, 2001
    Inventors: Marian E. Clark, Harry Charles Buchanan, James A. Jackson
  • Patent number: 6247376
    Abstract: A drive gear engages a driven gear with non-intersecting axes of rotation making an angle of approximately 90° with respect to one another. A shaft has a first portion with a predetermined diameter, and a second portion has an enveloped worm gear with at least one roll-formed helical tooth formed thereon with an outer diameter greater than the diameter of the first portion of the shaft. The extra envelopment achieves an overall smaller package size for competitive advantage. When the shaft is rolled, the outside teeth exceed the shaft diameter by a predetermined amount allowing more teeth to be in contact with the driven gear. An outer bearing can be placed at the end of the shaft to allow the teeth to be of a larger diameter than the shaft. The pitch of the teeth can vary. Preferably, the bearing groove is roll formed simultaneously with the teeth of the worm gear since the centroid of the enveloped teeth must be located with the gear center line.
    Type: Grant
    Filed: July 13, 1999
    Date of Patent: June 19, 2001
    Assignee: Valeo Electrical Systems, Inc.
    Inventors: Peter Shixiang Zhou, Harry Charles Buchanan, Jr., Ralph John Unterborn