Patents Assigned to Carter-Day Co.
  • Planar sided air shaping inserts for filter bags
    Patent number: 4632680
    Abstract: Air shaping mouth inserts for bag type air filters formed as planar sided tubes of rectangular and triangular cross section are inserted into the open ends of the bags. Their mouths are sealed to the bag rim so that air flow is restricted to the interior of the tube insert. This type of insert facilitates shaping and distribution of the reverse jet cleaning pulse by rotating the tubes around the axis or by altering the straight sides to unbalance the cross section of the air flow path.
    Type: Grant
    Filed: October 28, 1985
    Date of Patent: December 30, 1986
    Assignee: Carter-Day Co.
    Inventor: William J. Klimczak
  • Cleaning air manifold with back draft damper
    Patent number: 4632679
    Abstract: A moving manifold for back flushing open-mouthed filter bags so that the dust accumulated on the bags exterior is dislodged. The manifold distributes both continuously blower driven air and high pressure air from pulsed jets for back-flushing the bags. A back draft damper installed in the manifold is opened by the decreased pressure created when the high pressure air is activated in order to reduce structural stresses on the manifold and reduce the power required for the blower drive.
    Type: Grant
    Filed: September 23, 1985
    Date of Patent: December 30, 1986
    Assignee: Carter-Day Co.
    Inventor: William J. Klimczak