Patents by Inventor Freddie Chang

Freddie Chang 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: 8281778
    Abstract: A venting system for a stove includes a screen disposed beneath a bottom opening of the stove and an elevation means for adjusting a height of the screen so as to enable the screen to selectively move close to or away from the bottom opening. More specifically, the elevation means includes a main body and an adjuster, and the screen includes an elevator. The main body has a fixation portion and a connecting portion. The fixation portion is fixed to a bottom of the stove, and the adjuster is movably connected to the connecting portion. The elevator and the adjuster are in a motional operative relationship. As such, the elevator can be elevated, by the adjuster to selectively move close to or away from the bottom opening.
    Type: Grant
    Filed: February 3, 2010
    Date of Patent: October 9, 2012
    Assignee: Afire Inc.
    Inventor: Freddie Chang
  • Patent number: 8171926
    Abstract: A fire igniter of carbonaceous fuel, especially the fire igniter providing an initial operation to ignite cold and raw carbonaceous fuel, includes a barrel unit, a space of which is deformable and is collected easily. The barrel unit includes primarily a front plate, a rear plate and a side wing that are connected by hinges, so as to be deformed and collapsed for reducing a volume to be collected.
    Type: Grant
    Filed: May 9, 2008
    Date of Patent: May 8, 2012
    Inventor: Freddie Chang
  • Publication number: 20110186033
    Abstract: A stove, body of the present invention includes a stove body, a coal grid, an igniting grid and an incloser. The stove body has an annular shell which defines an upper opening and a lower opening. The coal grid is disposed in the stove body, and the igniting grid is detachably disposed at a center of the coal frame. The igniting grid has a protrusive arc grid surface and a cup disposed under the arc grid surface. The incloser detachably surrounds the igniting grid. Both end of the incloser are open ends. A fire-starting space is defined between the igniting grid and the incloser for solid fuel to dispose therein when the solid fuel is being lit. When the solid fuel is lit, the incloser is detached from the igniting grid, whereby the solid fuel rolls onto the coal grid along the arc grid surface automatically.
    Type: Application
    Filed: February 2, 2010
    Publication date: August 4, 2011
    Applicant: aFIRE INC.
    Inventor: FREDDIE CHANG
  • Publication number: 20110073097
    Abstract: A venting system for a stove includes a screen disposed beneath a bottom opening of the stove and an elevation means for adjusting a height of the screen so as to enable the screen to selectively move close to or away from the bottom opening. More specifically, the elevation means includes a main body and an adjuster, and the screen includes an elevator. The main body has a fixation portion and a connecting portion. The fixation portion is fixed to a bottom of the stove, and the adjuster is movably connected to the connecting portion. The elevator and the adjuster are in a motional operative relationship. As such, the elevator can be elevated, by the adjuster to selectively move close to or away from the bottom opening.
    Type: Application
    Filed: February 3, 2010
    Publication date: March 31, 2011
    Applicant: aFIRE INC.
    Inventor: FREDDIE CHANG
  • Publication number: 20110073098
    Abstract: A multi-functional cooking stove of the present invention includes a stove body, a position frame and a stove element. The stove body has an annular shell which defines an upper opening and a lower opening. The lower opening is smaller than the upper one. The position frame is disposed in the stove body and defines a through hole at its center for a container body of the stove element to pass therethrough. The stove element is adapted for fuel to dispose therein. A convection space is defined between the stove body and the stove element. At least one convection bore is formed on a periphery of the container body to communicate the convection space with an interior of the container body.
    Type: Application
    Filed: February 3, 2010
    Publication date: March 31, 2011
    Applicant: aFIRE INC.
    Inventor: FREDDIE CHANG
  • Publication number: 20080276926
    Abstract: A fire igniter of carbonaceous fuel, especially the fire igniter providing an initial operation to ignite cold and raw carbonaceous fuel, includes a barrel unit, a space of which is deformable and is collected easily. The barrel unit includes primarily a front plate, a rear plate and a side wing that are connected by hinges, so as to be deformed and collapsed for reducing a volume to be collected.
    Type: Application
    Filed: May 9, 2008
    Publication date: November 13, 2008
    Inventor: FREDDIE CHANG
  • Patent number: 7013588
    Abstract: The present invention discloses a floating massage pad structure having several messaging protrusions which normally float under to facilitate the rubbing and message made by the massage pad structure, comprising a flexible pad, a plurality of floating chambers in some portions within the surface that provide a plurality of mushroom-shaped massage protrusions; an opposing member disposed below the massage protrusion; a pair of repulsive magnetic members respectively disposed on the massage protrusion and the corresponding opposing member, such that the repulsion of the magnetic members makes the massage protrusions float under normal conditions, giving a sense of touching our skin before the massage, providing a multi-directional massage during the massage, and having a caressing effect after the massage.
    Type: Grant
    Filed: May 14, 2004
    Date of Patent: March 21, 2006
    Inventor: Freddie Chang
  • Publication number: 20040230139
    Abstract: The present invention discloses a floating massage pad structure having several messaging protrusions which normally float under to facilitate the rubbing and message made by the massage pad structure, comprising a flexible pad, a plurality of floating chambers in some portions within the surface that provide a plurality of mushroom-shaped massage protrusions; an opposing member disposed below the massage protrusion; a pair of repulsive magnetic members respectively disposed on the massage protrusion and the corresponding opposing member, such that the repulsion of the magnetic members makes the massage protrusions float under normal conditions, giving a sense of touching our skin before the massage, providing a multi-directional massage during the massage, and having a caressing effect after the massage.
    Type: Application
    Filed: May 14, 2004
    Publication date: November 18, 2004
    Inventor: Freddie Chang
  • Publication number: 20040230146
    Abstract: The present invention discloses an activated massage pad structure that can be applied to massage pads such as cushions, shoes, cooling mats, or pillows to give a rubbing and messaging functions with movable directions, comprising a flexible pad; a message protrusion movably disposed on the surface of the flexible pad; and a floating chamber movably disposed in the pad, such that the message protrusion has the function of switching directions by the arrangement and response of the floating chamber.
    Type: Application
    Filed: August 1, 2003
    Publication date: November 18, 2004
    Inventor: Freddie Chang