Patents by Inventor Calvin Stone

Calvin Stone 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: 11242996
    Abstract: A portable warming assembly includes a canister and a lid that is removably attachable to the canister for closing the canister. A roll of solid fuel is positionable inside of the canister and the roll of solid fuel is comprised of a combustible material. A container containing a liquid fuel is provided and a pre-determined amount of the liquid fuel is pourable onto the roll of solid fuel when the roll of solid fuel is positioned in the canister. In this way the liquid fuel enhances combustion of the roll of solid fuel. A plurality of rocks is provided and each of the rocks is positionable on top of the roll of solid fuel when the roll of solid fuel is positioned in the canister. Each of the rocks heats the ambient air when the roll of solid fuel and the liquid fuel are burned for heating an interior space.
    Type: Grant
    Filed: December 31, 2019
    Date of Patent: February 8, 2022
    Inventor: Calvin Stone
  • Publication number: 20210199302
    Abstract: A portable warming assembly includes a canister and a lid that is removably attachable to the canister for closing the canister. A roll of solid fuel is positionable inside of the canister and the roll of solid fuel is comprised of a combustible material. A container containing a liquid fuel is provided and a pre-determined amount of the liquid fuel is pourable onto the roll of solid fuel when the roll of solid fuel is positioned in the canister. In this way the liquid fuel enhances combustion of the roll of solid fuel. A plurality of rocks is provided and each of the rocks is positionable on top of the roll of solid fuel when the roll of solid fuel is positioned in the canister. Each of the rocks heats the ambient air when the roll of solid fuel and the liquid fuel are burned for heating an interior space.
    Type: Application
    Filed: December 31, 2019
    Publication date: July 1, 2021
    Inventor: Calvin Stone