Patents by Inventor Rana Waitai

Rana Waitai 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: 7455073
    Abstract: A fluid valve has a housing having an inlet port and an outlet port. A fluid flow path extends between the inlet port and the outlet port. A valve member is located in the housing in the fluid flow path. The valve member is moveable among a series of positions. The valve member and the housing have a plurality of apertures arranged such that a varied selection of the apertures is in the fluid flow path according to the indexed position of the valve member. In at least one indexed position of the valve member no apertures are in the flow path.
    Type: Grant
    Filed: August 21, 2006
    Date of Patent: November 25, 2008
    Assignee: Robertshaw Controls Company
    Inventors: Konstantin Shukhmin, Rana Waitai, Andrew Palmer
  • Publication number: 20070243495
    Abstract: An electronic gas control apparatus including a variable flow valve, an igniter, a flame sensor, and an electronic controller is provided. The valve has a flow range that equals or exceeds a required flow range for any one of the types of gas suitably combusted by the burner. The electronic controller is operably coupled to each of the valve, the igniter, and the sensor. The electronic controller is configured to activate the igniter, to receive a flame status signal from the sensor, and to recognize a position of the valve when the flame status signal indicates a flame at the burner. As such, the electronic controller is calibrated for the gas, line-pressure, jet and burner configuration being used.
    Type: Application
    Filed: April 17, 2007
    Publication date: October 18, 2007
    Applicant: ROBERTSHAW CONTROLS COMPANY
    Inventors: Andrew Crnkovich, Konstantin Shukhmin, Rana Waitai, Andrew Palmer
  • Publication number: 20060278285
    Abstract: A fluid valve has a housing having an inlet port and an outlet port. A fluid flow path extends between the inlet port and the outlet port. A valve member is located in the housing in the fluid flow path. The valve member is moveable among a series of positions. The valve member and the housing have a plurality of apertures arranged such that a varied selection of the apertures is in the fluid flow path according to the indexed position of the valve member. In at least one indexed position of the valve member no apertures are in the flow path.
    Type: Application
    Filed: August 21, 2006
    Publication date: December 14, 2006
    Applicant: Robertshaw Controls Company
    Inventors: Konstantin Shukhmin, Rana Waitai, Andrew Palmer