Patents by Inventor Walter K. Tomooka

Walter K. Tomooka 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: 5873356
    Abstract: A wood pellet stove for efficiently burning wood pellets and especially burning pellets at low burns. The stove is accurately controlled by a control panel with a microprocessor which helps safely regulate air flow from a combustion air and exhaust gas fan. Also, the microprocessor helps control convection air flow from a convection air fan and regulate feed of wood pellets into a burn pot using a motorized auger. The microprocessor is further used to monitor inlet air temperature and exhaust gas temperature. The stove includes a stove housing with a fire box and a fire box access door in the front of the housing. The burn pot includes a burn grate and pit used for receiving and burning wood pellets. The burn pot is disposed on a fire box floor. A wood pellet hopper is disposed in the rear of the housing for holding wood pellets therein. The motorized auger is used for feeding the wood pellets into the burn pot.
    Type: Grant
    Filed: June 26, 1995
    Date of Patent: February 23, 1999
    Assignee: Control Options, Inc.
    Inventors: Jeffrey L. Vossler, Walter K. Tomooka
  • Patent number: 4621610
    Abstract: A solid fuel heating apparatus has combustion air supplied in a controlled manner by a manifold. The manifold has a first branch that directs combustion air to the interior of the fuel ignited within the firebox and a second branch that extends along the forward edge of a baffle that extends from the rear wall of the firebox across a flue. Air issuing from the second branch is directed towards the fuel within the firebox so that a bodily rotation of gases within the firebox is obtained. A third branch extending generally parallel to the second branch is also provided and directs air towards the first branch. The air delivered by the second and third branch is roughly twice that delivered by the first branch and it has been found that this provides complete combustion of the fuel within the stove.
    Type: Grant
    Filed: January 31, 1985
    Date of Patent: November 11, 1986
    Inventor: Walter K. Tomooka