Patents by Inventor Richard E. Wendorf

Richard E. Wendorf 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: 5236010
    Abstract: A pressure regulating valve 10 is provided in a housing 11 filled with oil 23 and having an inlet port 12 and an outlet port 13. A straight elongate vertical tube 14 having a lengthwise slot 19 near its lower end 15 is affixed to the housing and communicates with the inlet port. Closely fitting down into the tube is a piston 16, slidable between a lower position 29 with its lower end 17 below the slot and a substantially higher upper position. A coaxial annular weight 22, surrounding upper portions of the piston and the tube, is affixed to the piston to exert a downward force thereon by virtue of the gravitational attraction of the weight to the earth.
    Type: Grant
    Filed: May 20, 1992
    Date of Patent: August 17, 1993
    Assignee: Gas Research Institute
    Inventors: Paul E. George, II, Richard E. Wendorf, Bruce E. Taber
  • Patent number: 5039535
    Abstract: An oven for cooking a food product that is exactly controlled for various cooking parameters, including cooking time, temperature, cooking elements used and cooking element duty cycle. Top and bottom cooking elements are provided in the oven. Temperature sensors are placed between each cooking element and the food product. The oven temperature is sensed when the food product is placed in the oven. The type of food product placed in the oven is indicated by the baker a control panel. Previously stored data indicates the cooking parameters to provide the best possible food product. The microprocessor controls the cooking elements to cook the food product according to the cooking parameters. As the correct cooking temperature is approached, the duty cycle of the cooking elements is lowered to ensure that the proper temperature is not exceeded. Once the correct cooking temperature is reached, the cooking elements operate at a predetermined duty cycle for the remaining cooking time.
    Type: Grant
    Filed: August 31, 1989
    Date of Patent: August 13, 1991
    Assignee: Lang Manufacturing Company
    Inventors: Howard A. Lang, Richard E. Wendorf, George E. Sage