Patents by Inventor Alois Ruhland

Alois Ruhland 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).

  • Electromagnetic relay
    Patent number: 4670727
    Abstract: The relay has a flat armature (6) carried at one bearing edge (15) of a yoke arm (5a), which is attached via an armature retaining spring (8). In order to protect the armature against shocks, the exposed section (18) of the armature retaining spring (8) engages with one or several extensions (6a) of the armature. In the event of shocks occurring in the direction parallel to the coil axis, the armature is only able to move slightly and then it knocks against the terminal edges (16) of the exposed spring sections (18).
    Type: Grant
    Filed: July 11, 1986
    Date of Patent: June 2, 1987
    Assignee: Siemens Aktiengesellschaft
    Inventors: Erwin Muller, Alois Ruhland