Patents by Inventor Mark A. Bartels

Mark A. Bartels 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: 12013435
    Abstract: A calibration system is disclosed. The calibration system includes a waveform generator configured to generate a periodic waveform and a control circuit in signal communication with the waveform generator. The control circuit includes an analog-to-digital converter configured to convert the periodic waveform to digital values and an electronic device in signal communication with the analog-to-digital converter. The electronic device is configured to verify calibration of (1) timing of the control circuit and (2) voltage levels of the control circuit based on the periodic waveform.
    Type: Grant
    Filed: May 7, 2020
    Date of Patent: June 18, 2024
    Assignee: Westinghouse Electric Company LLC
    Inventors: Timothy S. Meyers, Daniel G. Gruber, Mark A. Bartels, Kenneth J. Swidwa
  • Patent number: 4900897
    Abstract: In a metallic sheathed electric heating element assembly having a resistance element, a sheath surrounding the resistance element, pulverulent electrically insulating material within the sheath and surrounding the resistance element, the insulating material being tightly compacted and extending within the sheath short of an open end thereof, and a terminal pin electrically and mechanically connected to an end of the resistance element within the compass of the sheath, the terminal pin is made in two parts, an inner part to which the resistance element is connected, and an outer part spaced from the inner part, and a thermal switch or cut off electrically connected to and in series between the inner and outer parts of the pin within the sheath but spaced toward the open end from the compacted insulating material, the thermal switch being in good thermal contact with the inner part of the terminal pin.
    Type: Grant
    Filed: November 21, 1988
    Date of Patent: February 13, 1990
    Assignee: Emerson Electric Co.
    Inventors: Donald M. Cunningham, Mark A. Bartels, T. Randall Markum
  • Patent number: 4687905
    Abstract: A water heater with a plastic tank is provided with an electric immersion heating element assembly having a mounting plug in which is mounted a sheathed heating element having two generally parallel legs and a bight portion. A well projects from the mounting plug along and substantially parallel to the legs in heat exchange relation therewith and contains a thermal cutoff adapted to be electrically connected in series with the first end of a two-ended electric resistance element in the sheathed heating element. A thermally conductive bridge mechanically and thermally connects the legs of the sheathed heating element to the well. The legs of the sheathed heating element are bent back upon themselves and a bracket, connected to the two reaches of at least one leg, permits relative axial movement but prevents lateral movement of the reaches of the legs with respect to one another. The mounting plug is made of solid copper or copper alloy, as is the sheath and well.
    Type: Grant
    Filed: February 3, 1986
    Date of Patent: August 18, 1987
    Assignee: Emerson Electric Co.
    Inventors: Donald M. Cunningham, Mark A. Bartels, T. Randall Markum