Patents by Inventor Bernhard Edel

Bernhard Edel 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).

  • Keyswitch with decoupling diode
    Patent number: 4568918
    Abstract: A keyswitch for use with keyboards for connecting intersecting row and column wires of a circuit board for the keyboard has a decoupling diode for preventing the generation of false signals which may prevent a clear identification of the keyswitch which has been activated upon the simultaneous actuation of several keyswitches. The decoupling diode is integrated in the movable contact bridge of the keyswitch so that no soldering need be undertaken on the circuit board for the keyboard.
    Type: Grant
    Filed: June 12, 1984
    Date of Patent: February 4, 1986
    Assignee: Siemens Aktiengesellschaft
    Inventor: Bernhard Edel
  • Screening arrangement for a multi-pin cable connector
    Patent number: 3977755
    Abstract: A screening arrangement for a multi-pin cable connector in which a known connector formed of synthetic material is screened by the use of a metal liner which is simply pressed into position within opposite halves of the known connector. The liner provides a low ohmic contact of the cable screen with the associated apparatus to which it is connected as well as suitable screening of the interior of the connector housing.
    Type: Grant
    Filed: August 15, 1975
    Date of Patent: August 31, 1976
    Assignee: Siemens Aktiengesellschaft
    Inventors: Bernhard Edel, Gerhard Pierer