Patents by Inventor Franz Hoedlmayr

Franz Hoedlmayr 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: 5119044
    Abstract: An inductive proximity switch with adjustable switching hysteresis includes a presence indicator having an oscillator with an oscillating circuit and oscillator amplifier, a switch amplifier connected downstream of the presence indicator, an electronic switch controllable by the presence indicator through the switch amplifer, and a demodulator assigned to the oscillator. The presence indicator has an electronic circuit with a temperature dependency compensating for a temperature dependency of the switching point of the inductive proximity switch. The temperature dependency of the switching point of the inductive proximity switch is dictated by the temperature dependency of the quality of the oscillating circuit.
    Type: Grant
    Filed: June 19, 1991
    Date of Patent: June 2, 1992
    Assignee: Siemens Aktiengesellschaft
    Inventors: Franz Hoedlmayr, Michael Lenz