Patents by Inventor Steven Lingafelt

Steven Lingafelt 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: 6053760
    Abstract: The device includes a universal carrier plate with openings for cooling attached circuit boards and openings for coacting with brackets to mount different size circuit boards. A positioning mechanism is connected to the universal carrier plate and rides on tracks in the housing to position the carrier plate and its attached circuit board.
    Type: Grant
    Filed: June 5, 1998
    Date of Patent: April 25, 2000
    Assignee: International Business Machines Corporation
    Inventors: Robert Thomas Bailis, Thomas Lee Bonds, Jr., David John Jensen, Charles Steven Lingafelt, Brian Scott Oakley
  • Patent number: 5796964
    Abstract: A method for improving the performance of an existing busoriented computer system with minimum or no design change to the existing hardware, bus protocol, or bus operation is disclosed. Specifically, the present invention improves the effective bandwidth of an existing bus architecture by creating multiple physical instantiations of the existing bus and directing traffic onto these different buses based on the type of bus operation being performed. This results in multiple components having the capability to simultaneously perform bus operations, therefore improving the effective bandwidth of the system. This invention also allows the components which are current being utilized in the existing bus architecture to be re-utilized with minimum additional external logic.
    Type: Grant
    Filed: January 16, 1996
    Date of Patent: August 18, 1998
    Assignee: International Business Machines
    Inventors: Brian Mitchell Bass, Douglas Ray Henderson, Karen Park Heron, Jeffrey Wayne Kidd, Edward Hau-chun Ku, Charles Steven Lingafelt, Sr., Loren Blair Reiss
  • Patent number: 5754804
    Abstract: In a data processing system, a first system processor is coupled to a first system bus. The first system processor includes a first bus controller. A second system processor having a second bus controller is coupled to a second system bus. The first bus controller is then coupled to a management bus, and the second bus controller is coupled to the same management bus. Thereafter, at least one feature device is coupled to the first system bus, the second system bus, and the management bus. The feature device is also configured to communicate system processor communications with the first system processor via the first system bus. Next, a problem that affects system processor communications over the first system bus between the feature device and the first system processor is detected. In response to detecting such a communications problem, a command is sent to the feature device via the management bus.
    Type: Grant
    Filed: January 30, 1996
    Date of Patent: May 19, 1998
    Assignee: International Business Machines Corporation
    Inventors: Harry Cheselka, Steven Wade Hunter, Charles Steven Lingafelt, James Gregory Mulkey, John Wagner Yarbrough
  • Patent number: 5751559
    Abstract: An apparatus capable of housing PC cards including a PC card with a connector and PC card guide, a housing having an insertion opening for inserting the PC card and a circuit board mounted in the housing. The connecting direction between the PC card and the circuit board is perpendicular to the insertion direction of the PC card. The apparatus further includes guides arranged on the housing having two cam plates which are separated by spacers and supported by a shaft. Each cam plate has a continuously recessed guide path for guiding the PC card. The guide path has a guiding portion and a stop portion wherein the transition of the pivot pin from the guiding portion to the stop portion causes a defined rotation of the plug-in package about the pivot point wherein the plug-in package is rotatably arranged at the pivot point. This allows the PC card to make a pivot motion in order to accomplish the connection between the plug-in package and the circuit board.
    Type: Grant
    Filed: October 8, 1996
    Date of Patent: May 12, 1998
    Assignee: International Business Machines Corporation
    Inventors: David John Jensen, Charles Steven Lingafelt