Patents by Inventor John Potee Whitney

John Potee Whitney 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).

  • Publication number: 20190170449
    Abstract: A body of heat transfer fluid circulates in a first loop through an indirect screw-type thermal processor, a rundown tank, a pump, a heater and a fill tank, continuously heating the processor. With the pump operating, a first vertical distance between the fill tank bottom and the processor under the influence of gravity sets a minimum fluid pressure at the processor; a stem pipe opening in the fill tank at a second vertical distance above the processor sets a maximum pressure. With the pump inactive, the entire body of fluid passively drains to the rundown tank. Supplying the fluid may entail melting a salt, hydrating a salt, or both; such may be done in the rundown tank before circulation through the processor begins. A hydrated salt may be circulated, then heated and dehydrated, to gradually warm the processor. A dehydrated salt may be rehydrated and then stored; this may be done in the rundown tank after ceasing circulation through the processor.
    Type: Application
    Filed: December 3, 2017
    Publication date: June 6, 2019
    Inventors: John Potee Whitney, Preston Ochas Whitney
  • Publication number: 20190160391
    Abstract: Demilitarization and disposal of HC smoke ordnance with recovery of constituents thereof as commodities entails mechanically removing from the ordnance a filler comprising hexachloroethane, zinc oxide and grained aluminum; heating the filler to a temperature above the sublimation temperature of hexachloroethane but safely below the temperature at which hexachloroethane chemically decomposes, and draining and collecting the dense hexachloroethane vapor; and conventionally separating the aluminum from the zinc oxide. Filler is supplied to and removed from a heating compartment from above; hexachloroethane drains via a lower portion of the heating compartment.
    Type: Application
    Filed: October 30, 2017
    Publication date: May 30, 2019
    Inventor: John Potee Whitney
  • Publication number: 20180017323
    Abstract: Serially connected heat exchange segments of a heat exchanger are stacked with ends of adjacent segments oriented oppositely. The segments have fixed pipes for heat exchange, pipe-riding shaftless auger flights for conveying feed material, and flanges for low-cost adjustment, removal and replacement of pipes and flights. Flights when arranged in arrays are arranged in pairs of counterrotating oppositely handed mutually cleaning flights. Rotary unions are unnecessary in this exchanger.
    Type: Application
    Filed: July 13, 2016
    Publication date: January 18, 2018
    Inventors: John Potee Whitney, Preston Ochas Whitney, Mark Wechsler
  • Patent number: 9851156
    Abstract: A body of heat transfer fluid circulates in a first loop through an indirect screw-type thermal processor, a rundown tank, a pump, a heater and a fill tank, continuously heating the processor. With the pump operating, a first vertical distance between the fill tank bottom and the processor under the influence of gravity sets a minimum fluid pressure at the processor; a stem pipe opening in the fill tank at a second vertical distance above the processor sets a maximum pressure. With the pump inactive, the entire body of fluid passively drains to the rundown tank. Supplying the fluid may entail melting a salt, hydrating a salt, or both; such may be done in the rundown tank before circulation through the processor begins. A hydrated salt may be circulated, then heated and dehydrated, to gradually warm the processor. A dehydrated salt may be rehydrated and then stored; this may be done in the rundown tank after ceasing circulation through the processor.
    Type: Grant
    Filed: June 11, 2015
    Date of Patent: December 26, 2017
    Inventors: John Potee Whitney, Preston Ochas Whitney
  • Publication number: 20160363384
    Abstract: A body of heat transfer fluid circulates in a first loop through an indirect screw-type thermal processor, a rundown tank, a pump, a heater and a fill tank, continuously heating the processor. With the pump operating, a first vertical distance between the fill tank bottom and the processor under the influence of gravity sets a minimum fluid pressure at the processor; a stem pipe opening in the fill tank at a second vertical distance above the processor sets a maximum pressure. With the pump inactive, the entire body of fluid passively drains to the rundown tank. Supplying the fluid may entail melting a salt, hydrating a salt, or both; such may be done in the rundown tank before circulation through the processor begins. A hydrated salt may be circulated, then heated and dehydrated, to gradually warm the processor. A dehydrated salt may be rehydrated and then stored; this may be done in the rundown tank after ceasing circulation through the processor.
    Type: Application
    Filed: June 11, 2015
    Publication date: December 15, 2016
    Inventors: John Potee Whitney, Preston Ochas Whitney
  • Patent number: 9415945
    Abstract: A self-cleaning multiple helical auger conveyor for a processor has an array of pairs of opposite-handed, counterroatating helical augers with flights intermeshed such that the front of every flight is cleaned by the back of another flight and the back of every flight is cleaned by the front of another flight. Optionally, the flights are shafted and the periphery of every flight and the shaft of an adjacent flight mutually clean one another. Rectangular and polar arrays of such paired flights are described, along with relationships among flight thickness, clearance, pitch and number of flights. A flight having a coined surface and a cleaning tab projecting therefrom is described. Support, gearing and housing for various embodiments of the conveyor are described.
    Type: Grant
    Filed: July 9, 2015
    Date of Patent: August 16, 2016
    Inventors: John Potee Whitney, Preston Ochas Whitney