Patents by Inventor Peter Schonhardt

Peter Schonhardt 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).

  • Switch chain with switch riders for switch clocks
    Patent number: 4320480
    Abstract: A switch programming mechanism is afforded by means of an endless switch chain. The switch chain is provided with switch riders or triggers serving as mechanical abutments for the actuation of the switch. The switch chain may be formed with tooth elements having truncated inner ends and being axially displaceable on their interconnection means relative to one another. The switch chain is particularly well suited for fitting within the confines of a ordinal-display switch clock and for controlling the operation thereof.
    Type: Grant
    Filed: May 1, 1980
    Date of Patent: March 16, 1982
    Assignee: Dieter Graesslin Feinwerktechnik
    Inventor: Peter Schonhardt
  • Time switching device
    Patent number: 4224484
    Abstract: A time switching device for controlling dependent devices wherein the time switch device consists of at least two time switch assemblies, the device being provided with a common electric power inlet connector and each of the assemblies being provided with at least one assembly controlled power output connector whereby two or more dependent devices can be controlled from a single electric source.
    Type: Grant
    Filed: June 5, 1978
    Date of Patent: September 23, 1980
    Assignee: Dieter Graesslin Feinwerktechnik
    Inventors: Wolfgang Haas, Peter Schonhardt
  • Miniature timer
    Patent number: 4012607
    Abstract: A miniature timer device having a housing divided into a plurality of chambers for housing a reduction gear system, a motor and an electrical contact system and wherein bearing means for support of these items are formed integrally with the housing structure.
    Type: Grant
    Filed: December 16, 1974
    Date of Patent: March 15, 1977
    Assignee: Dieter Graesslin Feinwerktechnik
    Inventors: Dieter Graesslin, Peter Schonhardt