Patents Represented by Attorney, Agent or Law Firm R. L. Westell
  • Roll up screen edge control
    Patent number: 6691761
    Abstract: A rolled screen for a screen opening which may be part of a casement window frame unwinds to close the screen opening. The extended lateral edges of said screen pass through lateral slots and the screen is shaped or treated to prevent the movement of edges inwardly through the slots.
    Type: Grant
    Filed: May 2, 2002
    Date of Patent: February 17, 2004
    Assignee: Viper Profile Limited
    Inventors: Boulos Paul Alkhoury, Pasqualino D'Uva, Arturo Grassi, Philip Spatafora
  • Room grating control
    Patent number: 6474559
    Abstract: An air grating where the air flow is controlled by a grid movable between OPEN and CLOSED positions. Control means acts when a thermostat switch closes at either a warm or a cool limiting position. The arrival at a limiting position prepares said moving means for movement to the other limiting position when a later thermostat signal is received.
    Type: Grant
    Filed: November 7, 2001
    Date of Patent: November 5, 2002
    Inventor: Chan-Woo Park
  • Flower pot hanger
    Patent number: D434642
    Type: Grant
    Filed: February 24, 2000
    Date of Patent: December 5, 2000
    Assignee: 1250918 Ontario Limited
    Inventor: Mark Rolf Missalla