Patents Assigned to Air Products and Controls, Inc.
  • Duct detector housing
    Patent number: 7204522
    Abstract: A duct coupled air sampling detector housing includes a box to contain the detector. The box has a slotted sleeve adapted to receive tubular conduit having a protruding conduit tab. The conduit upon passing the protruding conduit tab through the sleeve slot is rotated such that the tab rests against a notch in the sleeve end that prevents the conduit from disengaging from the box. A conduit retainer overlies the inner end of the sleeve. A cover seals against the front face of the box to enclose the box volume containing the detector.
    Type: Grant
    Filed: March 22, 2004
    Date of Patent: April 17, 2007
    Assignee: Air Products and Controls, Inc.
    Inventors: David L. Hall, James E. Ludwig
  • Detector cowling
    Patent number: D645372
    Type: Grant
    Filed: November 29, 2010
    Date of Patent: September 20, 2011
    Assignee: Air Products and Controls Inc.
    Inventors: David L. Hall, Andrew D. Frost