Patents by Inventor Ernst Wirth

Ernst Wirth 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).

  • Patent number: 4167146
    Abstract: The combustion chamber of the oven is bounded at the top by a lid which can be swung open and at the bottom by a grating. The grating has one or more sections which pivot about an axis to dump slag. A hollow interior of the grating forms a section of the exhaust gas system. The lid includes a channel for air supply, the air passing through a perforated plate in the bottom of the lid into the combustion chamber. A perforated tube extending vertically along the axis of the combustion chamber opens into the channel in the lid and supplies air down into combustible materials filled into the combustion chamber. The depth to which the air is supplied can be regulated by a piston which can be adjusted vertically within the tube to extend the air flow to the depth desired. The incinerator is filled from above in layers.
    Type: Grant
    Filed: November 21, 1977
    Date of Patent: September 11, 1979
    Assignee: Swissmechanic, Sektion Schwyz
    Inventor: Ernst Wirth
  • Patent number: 4071870
    Abstract: Apparatus for generating minimally delayed closing instructions for turbine valves of turbo-generator sets in the event of power system short circuits wherein major faults resulting in a drop in the system voltage are detected and act upon the valve means controlling the fluid flow to the turbine in such manner that a rapid closure of the valve means prevents the turbo-generator from falling out of step in the case of a sustained fault condition. A provisional valve-closing signal is produced upon a predetermined drop in the system voltage but this is cancelled in the event that the ensuing acceleration of the turbo-generator set does not increase to a predetermined level within two revolutions of the set.
    Type: Grant
    Filed: March 25, 1975
    Date of Patent: January 31, 1978
    Assignee: BBC Brown, Boveri & Company Limited
    Inventors: Heinz Bloch, Ernst Wirth