Patents Assigned to Key Concepts, Incorporated
  • Patent number: 4496803
    Abstract: A new and improved switch incorporating an integral contact and return spring element for use in data entry keyboards is disclosed. The unitary contact and return spring element includes a spring member and a contact member. At rest, only the spring member contacts the underlying circuit board at a first terminal. If the spring contact is compressed a suitable distance, however, the contact member contacts a second portion of the circuit board to complete a circuit between the first and second terminal. The unitary contact and return spring element may include a plurality of spring contact members overlying an equal number of circuit board terminals. The use of multiple spring and contact elements allows use of double-pole, double-throw and double-pole, break-before-make embodiments.
    Type: Grant
    Filed: May 4, 1983
    Date of Patent: January 29, 1985
    Assignee: Key Concepts, Incorporated
    Inventor: William D. Smith