Patents Assigned to Centralab Inc.
  • Device for programmable thick film networks
    Patent number: 4626818
    Abstract: An energy sensitive fusible device fabricated by thick film techniques in which a fuse element is sandwiched between two glazes on a substrate, for use in programming thick film networks.
    Type: Grant
    Filed: November 28, 1983
    Date of Patent: December 2, 1986
    Assignee: Centralab, Inc.
    Inventor: John L. Hilgers
  • Method for manufacturing a fusible device for use in a programmable thick film network
    Patent number: 4582659
    Abstract: An energy sensitive fusible device fabricated by thick film techniques in which a fuse element is sandwiched between two glazes on a substrate, for use in programming thick film networks.
    Type: Grant
    Filed: January 17, 1985
    Date of Patent: April 15, 1986
    Assignee: Centralab, Inc.
    Inventor: John L. Hilgers
  • Process for silver plating rotary contact assemblies
    Patent number: 4559703
    Abstract: A process for silver plating a rotary switch contact assembly wherein a brass metal plate and a plastic rotor retainer are first formed, force-fitted together and then silver-plated as an assembly.
    Type: Grant
    Filed: April 24, 1984
    Date of Patent: December 24, 1985
    Assignee: Centralab, Inc.
    Inventor: Donald F. Gagas
  • Tactile feel membrane switch assembly
    Patent number: 4463234
    Abstract: A switch is disclosed having an insulating substrate with a first contact, a spacer layer with a hole aligned with the contacts, a flexible membrane with second contacts aligned with the hole and first contact, the membrane having a raised area of controlled thickness aligned with the second contact forming a force actuator, a dome enclosure with circular pockets for locating snap domes aligned with the raised area of the membrane, an overlay with cut out portions corresponding, to the snap domes and an overlay with graphic indicia covering the assembly.
    Type: Grant
    Filed: November 2, 1983
    Date of Patent: July 31, 1984
    Assignee: Centralab Inc.
    Inventor: William W. Bennewitz