Patents by Inventor Darrell D. Paul

Darrell D. Paul 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).

  • Thermal water treatment
    Patent number: 6835307
    Abstract: A thermal treatment system for supplying thermally conditioned or purified water for human or animal consumption, industrial processes, environmental containment, or removal of foreign species. The water purifier includes a heat exchanger for exchanging heat between outgoing thermally conditioned or purified water and incoming makeup water; a water heater is connected to the heat exchanger so as to receive pre-heated incoming makeup water, where the water heater subsequently heats the incoming preheated makeup water to a set-point temperature in the case of thermally conditioned water and for purified water also holds the water for a period of time sufficient to inactivate selected organisms to a predetermined level. The heat exchanger has one or more treated water outlets for supplying thermally conditioned or purified water at selected temperatures.
    Type: Grant
    Filed: August 2, 2001
    Date of Patent: December 28, 2004
    Assignee: Battelle Memorial Institute
    Inventors: Sherwood G. Talbert, Darrell D. Paul, Stephen M. Millett, David P. Evers, James E. Dvorsky, Paul E. George, II, Thomas D. Haubert, Jean E. Schelhorn, Klaus H. Wiesmann
  • Thermal water treatment
    Publication number: 20020050478
    Abstract: A thermal treatment system for supplying thermally conditioned or purified water for human or animal consumption, industrial processes, environmental containment, or removal of foreign species. The water purifier includes a heat exchanger for exchanging heat between outgoing thermally conditioned or purified water and incoming makeup water; a water heater is connected to the heat exchanger so as to receive pre-heated incoming makeup water, where the water heater subsequently heats the incoming preheated makeup water to a set-point temperature in the case of thermally conditioned water and for purified water also holds the water for a period of time sufficient to inactivate selected organisms to a predetermined level. The heat exchanger has one or more treated water outlets for supplying thermally conditioned or purified water at selected temperatures.
    Type: Application
    Filed: August 2, 2001
    Publication date: May 2, 2002
    Applicant: Battelle Memorial Institute
    Inventors: Sherwood G. Talbert, Darrell D. Paul, Stephen M. Millett, David P. Evers, James E. Dvorsky, Paul E. George, Thomas D. Haubert, Jean E. Schelhorn, Klaus H. Wiesmann
  • Method for deep-fat frying food products
    Patent number: 5180600
    Abstract: Apparatus and methods are disclosed for cooking and indicating the doneness of food products immersed in a hot liquid cooking medium such as deep hot fat. An indicator circuit that cooperates with an acoustic detector produces a first control signal indicating that acoustic activity in the cooking medium has fallen to below a threshold level for a predetermined first period of time, and afterwards produces a second control signal correlated to the doneness of the cooked food product a predetermined second period of time following said predetermined first period of time.
    Type: Grant
    Filed: March 25, 1991
    Date of Patent: January 19, 1993
    Assignee: Gas Research Institute
    Inventors: Paonan Hsieh, William T. McComis, Nagabhusan Senapati, Foster B. Stulen, Darrell D. Paul