Patents by Inventor William B. Griffin

William B. Griffin 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).

  • System for directing and controlling two separate streams of air to a kitchen
    Patent number: 7963830
    Abstract: A system for directing two separate streams of air to a commercial or industrial kitchen environment. The system includes a dual airflow plenum that is normally disposed adjacent a kitchen exhaust hood. Typically one stream of air is a tempered, that is heated or cooled, and is directed through the dual airflow plenum to where it is exhausted at an area or point adjacent the exhaust hood. A second untempered, that is ambient air, air stream is directed through the same dual air flow plenum and is exhausted into an area adjacent the exhaust hood. Preferably the plenum is positioned with respect to the exhaust hood such that the outlet for the untempered air is disposed generally between the exhaust hood and the outlet for the tempered air. Moreover, the relative velocity of the two air streams is maintained or controlled such that the velocity of the tempered air stream is equal to or greater than the velocity of the untempered air stream.
    Type: Grant
    Filed: September 22, 2004
    Date of Patent: June 21, 2011
    Assignee: Captive-Aire Systems, Inc.
    Inventors: Robert L. Luddy, William B. Griffin, Nicolas I. Perry
  • Heated make-up air system
    Patent number: 6629523
    Abstract: A heated make-up air system comprising a duct structure having a direct gas fired burner mounted therein. Adjacent the burner there is provided an opening for permitting air to flow there through. Mounted adjacent the opening one or more pivotally mounted panels or profile plates. The moveable panels or profile plates are spring-biased to assume a normally closed position. However, the moveable panels are moveable from the closed position to an open position in order to control air flow through the duct structure and past the burner.
    Type: Grant
    Filed: January 11, 2001
    Date of Patent: October 7, 2003
    Assignee: Captive-Aire Systems, Inc.
    Inventors: Todd J. Saltzman, William B. Griffin
  • Heated make- up air system
    Publication number: 20020088456
    Abstract: A heated make-up air system comprising a duct structure having a direct gas fired burner mounted therein. Adjacent the burner there is provided an opening for permitting air to flow there through. Mounted adjacent the opening one or more pivotally mounted panels or profile plates. The moveable panels or profile plates are spring-biased to assume a normally closed position. However, the moveable panels are moveable from the closed position to an open position in order to control air flow through the duct structure and past the burner.
    Type: Application
    Filed: January 11, 2001
    Publication date: July 11, 2002
    Inventors: Todd J. Saltzman, William B. Griffin