Patents by Inventor Lutz Gaebel

Lutz Gaebel 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).

  • Digital 2-of-3 selection and output circuit
    Patent number: 4857762
    Abstract: For the operation of a technical system having increased safety requirements, all of the apparatus for increasing the safety and the availbility are provided in triple redundancy. As selection and output circuit, three redundant data channels (DE1, DE2, DE3) normally emitting the same information are respectively connected in pairs to three AND elements, each consisting of two optocouplers (OR1/OR4, OR2/OR5, OR3/OR6). The elements of the optocouplers are connected with a relay (RL) by an OR arrangement (WO).
    Type: Grant
    Filed: October 28, 1987
    Date of Patent: August 15, 1989
    Assignee: Siemens Aktiengesellschaft
    Inventor: Lutz Gaebel