Patents by Inventor David E. McCombs, Jr.

David E. McCombs, Jr. 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: 6301947
    Abstract: A fluid level indicator that compensates for fluid temperature is provided. The indicator includes an elongated shaft that is received by the fill tube of the apparatus. The shaft is adapted to contact the fluid at one end to measure the level of fluid in the apparatus. A reversible liquid crystal display is carried by the shaft and includes a plurality of bands. Each band has a defined height and is capable of being illuminated when the oil is within a certain temperature spectrum. When the band is at a temperature within its spectrum, the band illuminates, or somehow differentiates itself from those bands that are not within their illumination spectrum. At a specific temperature, certain bands, adjacent to one another, are illuminated to create a vertical range on the dipstick. The desired level of fluid in the apparatus is defined by the vertical range created by the illuminated bands of the liquid crystal display.
    Type: Grant
    Filed: March 19, 1999
    Date of Patent: October 16, 2001
    Assignee: DaimlerChrysler Corporation
    Inventor: David E. McCombs, Jr.