Patents by Inventor Clifford A. Blackmore

Clifford A. Blackmore 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: 8375848
    Abstract: A self-cleaning rotisserie oven includes a cooking chamber for cooking food product. A rotor is used for supporting and moving a food product in the cooking chamber. A sump is positioned below the cooking chamber that collects water provided to the cooking chamber. A sensor is positioned to detect when the sump is filled to a set level. An inlet valve is configured to control supply of water to the cooking chamber. A controller is configured to carry out a self-cleaning process. The self-cleaning process includes (a) a pre-rinse phase where the controller (i) opens the inlet valve, (ii) closes the inlet valve when the sensor detects that the sump is filled to the set level, and (iii) determines a duration of time that the inlet valve was open during (i), and (b) a later phase during which the controller opens the inlet valve for an amount of time based on the duration of time determined during (a)(iii).
    Type: Grant
    Filed: November 26, 2008
    Date of Patent: February 19, 2013
    Assignee: Premark FEG L.L.C.
    Inventors: Richard D. Valentine, Nigel G. Mills, Matthew A. Weber, James M. Heiser, Clifford A. Blackmore
  • Publication number: 20090178576
    Abstract: A self-cleaning rotisserie oven includes a cooking chamber for cooking food product. A rotor is used for supporting and moving a food product in the cooking chamber. A sump is positioned below the cooking chamber that collects water provided to the cooking chamber. A sensor is positioned to detect when the sump is filled to a set level. An inlet valve is configured to control supply of water to the cooking chamber. A controller is configured to carry out a self-cleaning process. The self-cleaning process includes (a) a pre-rinse phase where the controller (i) opens the inlet valve, (ii) closes the inlet valve when the sensor detects that the sump is filled to the set level, and (iii) determines a duration of time that the inlet valve was open during (i), and (b) a later phase during which the controller opens the inlet valve for an amount of time based on the duration of time determined during (a)(iii).
    Type: Application
    Filed: November 26, 2008
    Publication date: July 16, 2009
    Inventors: Richard D. Valentine, Nigel G. Mills, Matthew A. Weber, James M. Heiser, Clifford A. Blackmore