Patents by Inventor David P. Hart

David P. Hart 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: 8478861
    Abstract: A method of managing devices may include downloading information to a courier device from an enterprise. The information may be information for performing a device management operation. The method also includes communicating the information from the courier device to a monitored agent coupled to at least one of a disconnected device and an intermittently connected device.
    Type: Grant
    Filed: July 6, 2007
    Date of Patent: July 2, 2013
    Assignee: Axeda Acquisition Corp.
    Inventors: John L. Taylor, David P. Hart, John D. Liberty, Robert K. Kistler
  • Patent number: 8370479
    Abstract: A method to dynamically group devices based on device information, which is associated with a system for monitoring the device information that communicates information between a device and an enterprise. Information is collected from a device information source to obtain an actual status of a device. The actual status of the device is compared to a stored status of the device. The stored status is stored on a server of the enterprise. The enterprise determines if the actual status has been changed from the stored status. When a change is detected, the method performs at least one of the acts of automatically disassociating the device from a group that reflects the stored status and automatically associating the device with a new group to reflect the actual status.
    Type: Grant
    Filed: October 3, 2006
    Date of Patent: February 5, 2013
    Assignee: Axeda Acquisition Corporation
    Inventors: David P. Hart, John Taylor
  • Publication number: 20090013064
    Abstract: A method of managing devices may include downloading information to a courier device from an enterprise. The information may be information for performing a device management operation. The method also includes communicating the information from the courier device to a monitored agent coupled to at least one of a disconnected device and an intermittently connected device.
    Type: Application
    Filed: July 6, 2007
    Publication date: January 8, 2009
    Applicant: QUESTRA CORPORATION
    Inventors: John L. Taylor, David P. Hart, John D. Liberty, Robert K. Kistler
  • Publication number: 20080082657
    Abstract: A method to dynamically group devices based on device information, which is associated with a system for monitoring the device information that communicates information between a device and an enterprise. Information is collected from a device information source to obtain an actual status of a device. The actual status of the device is compared to a stored status of the device. The stored status is stored on a server of the enterprise. The enterprise determines if the actual status has been changed from the stored status. When a change is detected, the method performs at least one of the acts of automatically disassociating the device from a group that reflects the stored status and automatically associating the device with a new group to reflect the actual status.
    Type: Application
    Filed: October 3, 2006
    Publication date: April 3, 2008
    Applicant: QUESTRA CORPORATION
    Inventors: David P. Hart, John L. Taylor
  • Patent number: 6487940
    Abstract: A nut driver is provided in which a torque is delivered to a fastener while a bolt is rotationally maintained in a fixed position thereby tightening the fastener onto the bolt. The nut driver also removably attaches to pulse gun and includes a planetary gear arrangement. The nut driver is interchangeable with a variety of pulse guns. Although, conventional devices provide a torque to rotationally couple a nut to a bolt, the feature of interchangeability which allows utilization of different pulse guns is not available. The ability to interchange pulse guns allows the nut driver to easily be used with a variety of drive devices or pulse guns. Furthermore, the nut driver converts the variety of pulse guns into useful driving tools for fastening nut and bolts or other fastener pairs together.
    Type: Grant
    Filed: January 23, 2001
    Date of Patent: December 3, 2002
    Assignee: Associated Toolmakers Incorporated
    Inventors: David P. Hart, Roger L. Smith, George R. Pearl, Jr., John W. Moander
  • Publication number: 20020096020
    Abstract: A nut driver is provided in which a torque is delivered to a fastener while a bolt is rotationally maintained in a fixed position thereby tightening the fastener onto the bolt. The nut driver also removably attaches to pulse gun and includes a planetary gear arrangement. The nut driver is interchangeable with a variety of pulse guns. Although, conventional devices provide a torque to rotationally couple a nut to a bolt, the feature of interchangeability which allows utilization of different pulse guns is not available. The ability to interchange pulse guns allows the nut driver to easily be used with a variety of drive devices or pulse guns. Furthermore, the nut driver converts the variety of pulse guns into useful driving tools for fastening nut and bolts or other fastener pairs together.
    Type: Application
    Filed: January 23, 2001
    Publication date: July 25, 2002
    Inventors: David P. Hart, Roger L. Smith, George R. Pearl, John W. Moander
  • Patent number: 5038580
    Abstract: The present invention is a heat pump system having a direct earth coupled underground heat exchanging apparatus. The system uses a heat exchanging fluid existing in both gaseous and liquid form during operation and includes ancillary equipment and associated controls for carrying out various functions such as cooling, heating, refrigeration and water heating. By effectively utilizing the excellent heat conservation characteristics and huge heat capacity of subsurface earth or water, a greatly improved level of efficiency is achieved. The apparatus comprises a compressor 1, an expansion valve 8, a receiver 7, an indoor evaporator/condenser coil 5, a four way reversing valve 3, an accumulator 16 and a plurality of evaporator/condenser coils 11 disposed in the earth. The apparatus uses the native earth as a heat source in the heating mode and as heat sink in the cooling mode.
    Type: Grant
    Filed: December 5, 1989
    Date of Patent: August 13, 1991
    Inventor: David P. Hart