Patents by Inventor Dorothy Foster

Dorothy Foster 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).

  • Flameless hot oiler
    Patent number: 7424916
    Abstract: A flameless heating system comprising: at least one engine, each engine including a coolant for removing heat from the engine and each engine producing exhaust; a loading means for loading the engine; a heat exchange system, the heat exchange system comprising: a heat exchange fluid; a pump for circulating the heat exchange fluid; at least one heat exchanger for transferring heat from the at least one engine coolant to the heat exchange fluid; and an exhaust heat exchanger for transferring heat from the exhaust of the at least one engine to the heat exchange fluid; a batch fluid; and a heat exchanger for transferring heat from the heat exchange system to the batch fluid, wherein heat is transferred from the engine to the heat exchange system, and from the heat exchange system to the batch fluid.
    Type: Grant
    Filed: May 3, 2004
    Date of Patent: September 16, 2008
    Assignee: Leader Energy Services Ltd.
    Inventors: Robert Joseph Foster, Dorothy Foster
  • Flameless boiler
    Publication number: 20060185621
    Abstract: A flameless boiler comprising generator means for generating heat in fluid circulated therethrough by shearing of the fluid; a prime mover drivingly connected to the generator means for shearing of the fluid; a supply reservoir for the fluid; a first pump for circulating the fluid from the supply reservoir to the generator means; and a pressure vessel in fluid communication with the generator means for receiving heated fluid therefrom, the pressure vessel having an outlet for drawing steam therefrom.
    Type: Application
    Filed: August 6, 2004
    Publication date: August 24, 2006
    Applicant: PD&E Resource Services Corp.
    Inventors: Robert Foster, Dorothy Foster
  • Flameless hot oiler
    Publication number: 20050039906
    Abstract: A flameless heating system comprising: at least one engine, each engine including a coolant for removing heat from the engine and each engine producing exhaust; a loading means for loading the engine; a heat exchange system, the heat exchange system comprising: a heat exchange fluid; a pump for circulating the heat exchange fluid; at least one heat exchanger for transferring heat from the at least one engine coolant to the heat exchange fluid; and an exhaust heat exchanger for transferring heat from the exhaust of the at least one engine to the heat exchange fluid; a batch fluid; and a heat exchanger for transferring heat from the heat exchange system to the batch fluid, wherein heat is transferred from the engine to the heat exchange system, and from the heat exchange system to the batch fluid.
    Type: Application
    Filed: May 3, 2004
    Publication date: February 24, 2005
    Applicant: PD&E Resource Services Corp.
    Inventors: Robert Foster, Dorothy Foster