Patents by Inventor Lawrence E. Piercey

Lawrence E. Piercey 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: 5557188
    Abstract: A battery system includes intelligence to allow the battery system to control various aspects of the charging and discharging of the battery, as well as to constantly monitor the battery voltage, temperature, current charge/discharge rate, and remaining capacity of the battery. The intelligent battery system is capable of being charged from a simple voltage supply, with all aspects of charge/discharge rate control and monitoring being accomplished as a function of the intelligent battery system itself, rather than as part of an external charging circuit, or an external electronic device to be powered by the intelligent battery system. This alleviates the need for external systems to include such circuitry and control elements and allows, if desired, a variety of intelligent battery systems to be developed for use with a given electronic system or family of electronic systems, with each battery being able to control its own charge/discharge rates and monitoring functions.
    Type: Grant
    Filed: February 1, 1994
    Date of Patent: September 17, 1996
    Assignee: Sun Microsystems, Inc.
    Inventor: Lawrence E. Piercey
  • Patent number: 5287244
    Abstract: The present invention is a computer housing with a low noise cooling system. The computer housing is comprised of two principal members, a cover and a base. Both a left surface and a right surface of the cover are perforated with vents to allowing the passage of air through the housing. The base additionally incorporates two air intake holes with a power source for the computer disposed over these air intake holes. The passage of air through the housing is facilitated through the use of three fans. These three fans are attached directly to the power source, and each of these fans operates at a different fan speed. The fan speeds are additionally adjusted in response to the outside ambient temperature. In operation, air enters the computer housing of the present invention through the vent array on the left surface of the cover, and the air intake holes in the base.
    Type: Grant
    Filed: May 19, 1992
    Date of Patent: February 15, 1994
    Assignee: Sun Microsystems, Inc.
    Inventors: Vincent P. Hileman, Robert J. Lajara, Thomas E. J. Stewart, Nagaraj P. R. Mitty, Joseph A. Tombari, William L. Grouell, Clifford B. Willis, Steven J. Furuta, Lawrence E. Piercey, Loren R. Davidson