Patents Assigned to Kadant Johnson Inc.
  • Patent number: 9797092
    Abstract: Disclosed herein is a method and apparatus for improving the heating capacity of steam-heated hot plates, and in particular, to steam-heated hot plates used in the corrugating industry. One or more separators and thermocompressors are added to the output of the hot plates to separate blow through steam from condensate and pressurize and inject the steam back into the hot plates.
    Type: Grant
    Filed: July 24, 2012
    Date of Patent: October 24, 2017
    Assignee: Kadant Johnson Inc.
    Inventors: Gregory L. Wedel, Gerald L. Timm, Kenneth C. Hill
  • Publication number: 20170248366
    Abstract: An apparatus for removing fluid, such as condensate, from the inside of a rotating cylinder 10. The apparatus comprises a syphon shoe 50 proximate to the inside surface 35 of the rotating cylinder 10. The syphon shoe 50 is connected a syphon pipe 29. The syphon shoe 50 further comprises two opposing circumferential openings 51, 52 and a divider 60. The two opposing circumferential openings 51, 52 are disposed substantially parallel to the direction of rotation of the rotating cylinder 10. The divider separates the opposing circumferential openings 51, 52 and extends radially from the end of the syphon end 50.
    Type: Application
    Filed: October 5, 2015
    Publication date: August 31, 2017
    Applicant: Kadant Johnson Inc.
    Inventors: Gregory L. Wedel, Gerald L. Timm, Timothy N. Henry
  • Publication number: 20120279080
    Abstract: A turbulence bar assembly for a cylinder that extends in an axial direction includes a plurality of bars that extend in the axial direction and at least one hoop. The at least one hoop has one or more hoop segments that are connected to the plurality of bars and one or more couplers that are in engagement with the one or more hoop segments to expand and contract a radial dimension of the at least one hoop in response to movement of an adjustment block in the axial direction.
    Type: Application
    Filed: May 3, 2011
    Publication date: November 8, 2012
    Applicant: KADANT JOHNSON INC.
    Inventors: Gregory L. Wedel, Alan T. Ives, Timothy N. Henry
  • Patent number: 7805857
    Abstract: A dual-purpose, cooling/drying apparatus comprising a rotatable cooling/drying cylinder wherein air, steam, and water supplied from sources external of the cooling/drying cylinder are selectively introducible into and removable from a space defined inside the cylinder. The apparatus includes a first flow path through which the water is selectively introducible into the cylinder space, and a second, separate flow path through which either of the air and steam are selectively introducible into the cylinder space. The apparatus is characterized by a cooling mode, in which the water and air are selectively introducible into the cylinder space through the first and second flow paths, respectively, and a drying mode, wherein the steam is selectively introducible into the cylinder space through the second flow path.
    Type: Grant
    Filed: December 28, 2006
    Date of Patent: October 5, 2010
    Assignee: Kadant Johnson, Inc.
    Inventor: Alan T. Ives
  • Patent number: 7673395
    Abstract: A dryer bar apparatus of a dryer for drying a web in a papermaking machine includes a number of turbulence bars circumferentially spaced equidistantly around the inner surface of the dryer shell for generating turbulence within a layer of condensate. The arrangement is such that uniformity of the transfer of thermal energy in the cross machine direction is maximized while the transfer of thermal energy through the dryer shell from the inner to the outer surface is minimized. Also, the number of turbulence bars is determined by the equation: N=int{2?Ri/[4?(Ri/d)½+W]} in which: N=the number of turbulence bars in the dryer shell; int=an integer number of a value in { } brackets; ?=3.1415; Ri=the inside radius of the inner surface of the dryer shell in inches; d=an average depth of the layer in inches; W=a width of each of the turbulence bars in inches.
    Type: Grant
    Filed: November 17, 2003
    Date of Patent: March 9, 2010
    Assignee: Kadant Johnson Inc.
    Inventors: Gerald L. Timm, Gregory L. Wedel
  • Patent number: 7618068
    Abstract: A siphon elbow for pivotally connecting separate horizontal and vertical siphon pipes in fluid communication, comprising a horizontal body and a pivot body. The horizontal body has a first, longitudinally-extending passageway defined therethrough between opposite first and second open ends, the first open end connectable to an end of a horizontal siphon pipe. A second passageway is defined transversely through the horizontal body and intersects the first passageway. The second passageway is at least partially defined by opposite openings in the horizontal body. The pivot body has a passageway defined transversely therethrough between first and second open ends, the second open end being connectable to an end of a vertical siphon pipe.
    Type: Grant
    Filed: June 28, 2007
    Date of Patent: November 17, 2009
    Assignee: Kadant Johnson, Inc.
    Inventors: Tim N. Henry, Kenneth C. Lahrke, III
  • Patent number: 7178582
    Abstract: An apparatus is disclosed for increasing a transfer of thermal energy through an inner surface of a hollow cylindrical dryer of a papermaking machine to a peripheral outer surface of the dryer. The apparatus includes a plurality of bars of rectangular cross-sectional configuration, each of the bars extending axially within the dryer. The bars are disposed spaced and parallel relative to each other with each of the bars being urged outwardly against the inner surface of the dryer. A mechanism is provided for urging each of the bars radially outward against the inner surface of the dryer. The mechanism includes a plurality of hoop rings which are spaced axially within the dryer, each hoop ring being disposed normal to an axis of rotation of the dryer.
    Type: Grant
    Filed: December 12, 2005
    Date of Patent: February 20, 2007
    Assignee: Kadant Johnson Inc.
    Inventors: Alan T. Ives, Gerald L. Timm, Gregory L. Wedel