Patents by Inventor Donald A. Boschker

Donald A. Boschker 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).

  • Combinatorial chemistry cassette
    Patent number: 5753187
    Abstract: A cassette is provided which includes a combinatorial chemistry dish as used in chemical and biological laboratory work. The cassette includes a metal housing which is adjustable in that it can securely seal a variety of combinatorial dishes having different heights which contain liquid reagents. Planar inner seals placed against the dishes prevent leakage of the reagents while mixing and handling.
    Type: Grant
    Filed: June 14, 1996
    Date of Patent: May 19, 1998
    Assignee: Stovall Life Science, Inc.
    Inventors: Cedric S. Reynolds, Donald A. Boschker
  • Security apparatus and system for retail environments
    Patent number: 5448638
    Abstract: A gasoline service station includes gasoline dispensers and a PIN pad including keypads for receiving personal identification numbers and assembled into a network for securely communicating personal identification numbers from the PIN pads and dispensers to a host computer over unsecured data lines. The PIN pads and dispensers each include means for encryption and outputting of personal identification numbers. A security module includes means for decryption of data associated with each PIN pad and dispenser in a process for the respective PIN pads and dispensers and means for encryption of data associated with the host computer in a process which is different from its decryption of data associated with the PIN pads and dispensers.
    Type: Grant
    Filed: May 13, 1994
    Date of Patent: September 5, 1995
    Assignee: Gilbarco, Inc.
    Inventors: William S. Johnson, Edward A. Payne, Donald A. Boschker, Benita W. Phipps
  • Security apparatus and system for retail environments
    Patent number: 5384850
    Abstract: A gasoline service station includes gasoline dispensers and a PIN pad including keypads for receiving personal identification numbers and assembled into a network for securely communicating personal identification numbers from the PIN pads and dispensers to a host computer over unsecured data lines. The PIN pads and dispensers each include means for encryption and outputting of personal identification numbers. A security module includes means for decryption of data associated with each PIN pad and dispenser in a process for the respective PIN pads and dispensers and means for encryption of data associated with the host computer in a process which is different from its decryption of data associated with the PIN pads and dispensers.
    Type: Grant
    Filed: November 23, 1992
    Date of Patent: January 24, 1995
    Assignee: Gilbarco
    Inventors: William S. Johnson, Edward A. Payne, Donald A. Boschker, Benita W. Phipps
  • Laboratory container rolling device
    Patent number: 5299864
    Abstract: A laboratory container rolling device is provided which has a relatively low profile for use in confined spaces such as in refrigerators, ovens or other small compartments. Removable rollers allow the device to accommodate various diameter containers and the variable speed feature accommodates precise speed setting. Safeguards are provided to prevent container damage during extended usage to maintain the container properly upon the rollers.
    Type: Grant
    Filed: November 3, 1992
    Date of Patent: April 5, 1994
    Assignee: Stovall Life Science, Inc.
    Inventors: Cedric S. Reynolds, Donald A. Boschker
  • Security apparatus and system for retail environments
    Patent number: 5228084
    Abstract: A gasoline service station includes gasoline dispensers and a PIN pad including keypads for receiving personal identification numbers and assembled into a network for securely communicating personal identification numbers from the PIN pads and dispensers to a host computer over unsecured data lines. The PIN pads and dispensers each include means for encryption and outputting of personal identification numbers. A security module includes means for decryption of data associated with each PIN pad and dispenser in a process for the respective PIN pads and dispensers and means for encryption of data associated with the host computer in a process which is different from its decryption of data associated with the PIN pads and dispensers.
    Type: Grant
    Filed: February 28, 1991
    Date of Patent: July 13, 1993
    Assignee: Gilbarco, Inc.
    Inventors: William S. Johnson, Edward A. Payne, Donald A. Boschker, Benita W. Phipps