Patents Assigned to Phillips & Brooks, Inc.
  • Patent number: 4862499
    Abstract: A telephone keypad assembly including a one-piece deformable membrane for sealing the keypad assembly from the environment. The deformable membrane has an upper surface for mating with keypad pushbuttons and a keypad pushbutton housing unit, and a lower surface including a contact actuator for making contact with electrical switch contacts. The membrane forms raised areas or domes which bias the keypad pushbuttons and biasingly resists movement of the contact actuator toward the electrical contacts. The keypad assembly including switch contacts is protected from moisture, dust and other corrosive elements by the seal formed between the housing unit and the deformable membrane.
    Type: Grant
    Filed: September 4, 1987
    Date of Patent: August 29, 1989
    Assignee: Phillips & Brooks, Inc.
    Inventors: David E. Jekot, Harold W. Jordan
  • Patent number: 4747134
    Abstract: A telephone hook switch assembly has a housing which defines first and second cavities and a shaft rotatably mounted in the housing. A hook switch lever is mounted on the shaft and is rotatable therewith in the first housing cavity. A switch assembly having snap-action switches is positioned in the second housing cavity. The snap-action switches open and close in a predetermined sequence in response to rotation of the hook switch lever. The assembly provides superior isolation of the electrical contacts from environmental contaminants and is more rugged than conventional leaf spring and program card arrangements.
    Type: Grant
    Filed: June 4, 1987
    Date of Patent: May 24, 1988
    Assignee: Phillips & Brooks, Inc.
    Inventors: Eddie L. Holland, David E. Jekot
  • Patent number: D251465
    Type: Grant
    Filed: January 19, 1977
    Date of Patent: April 3, 1979
    Assignee: Phillips & Brooks, Inc.
    Inventor: John D. Margeson
  • Patent number: D309160
    Type: Grant
    Filed: October 16, 1986
    Date of Patent: July 10, 1990
    Assignee: Phillips & Brooks, Inc.
    Inventor: Eddie L. Holland