Patents by Inventor Gregory L. Wedel

Gregory L. Wedel 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).

  • Patent number: 5542193
    Abstract: A drying apparatus is disclosed for drying a web of paper. The apparatus includes more than one top felted dryer group for drying the web. The web may be restrained against cross-machine and machine directional shrinkage during passage of the web through the plurality of dryer groups. A last dryer group is located downstream relative to the plurality of drying groups so that the web extends between the plurality of drying groups and the last dryer group. The last dryer group can be a double felted two tier dryer group. The web extends in an open draw between each dryer cylinder of the upper and lower tiers of the last dryer group, so any tendency of the web to curl is controlled during movement of the web through the last dryer group. Alternative arrangements are also described.
    Type: Grant
    Filed: February 7, 1994
    Date of Patent: August 6, 1996
    Assignee: Beloit Technologies, Inc.
    Inventors: Duke N. Sims, Gregory L. Wedel
  • Patent number: 5404653
    Abstract: A single tier drying section is disclosed for drying a web. The drying section includes a dryer and a felt guided about the dryer such that the web is disposed between the dryer and the felt for drying a first side of the web. A further dryer is disposed downstream relative to the dryer and a further felt is guided about the further dryer such that the web is disposed between the further dryer and the further felt for drying a second side of the web. A dryer transfer mechanism is used for transferring the web from the dryer to the further dryer.
    Type: Grant
    Filed: May 19, 1993
    Date of Patent: April 11, 1995
    Assignee: Beloit Technologies, Inc.
    Inventors: Borgeir Skaugen, Gregory L. Wedel, Dale A. Brown, David J. Archer
  • Patent number: 5283960
    Abstract: A drying apparatus is disclosed for drying a web of paper. The apparatus includes a plurality of top felted drying sections for drying the web. Each of the drying sections is arranged in succession such that the web is restrained against cross-machine and machine directional shrinkage during passage of the web through the plurality of drying sections. A further single drying section only is disposed downstream relative to the plurality of drying sections such that the web extends between the plurality of drying sections and the further drying section. The further drying section includes an upper tier of dryers and an upper plurality of rolls which are disposed between adjacent dryers of the upper tier. An upper felt extends alternately around each dryer of the upper tier and each roll of the upper plurality of rolls. The further drying section also includes a lower tier of dryers and a lower plurality of rolls disposed between adjacent dryers of the lower tier.
    Type: Grant
    Filed: July 21, 1993
    Date of Patent: February 8, 1994
    Assignee: Beloit Technologies, Inc.
    Inventors: Duke N. Sims, Gregory L. Wedel
  • Patent number: 5279049
    Abstract: A process is disclosed for the restrained drying of a paper web in a dryer section of a paper machine. The process includes the steps of wrapping the web with a felt during passage of the web with the felt around a dryer of the dryer section and thereafter wrapping the web around a portion of a guiding device disposed immediately downstream relative to the dryer so that edge curl of the web is minimized.
    Type: Grant
    Filed: May 30, 1990
    Date of Patent: January 18, 1994
    Assignee: Beloit Technologies, Inc.
    Inventors: Borgeir Skaugen, Gregory L. Wedel
  • Patent number: 5269074
    Abstract: A drying apparatus is disclosed for drying a web of paper. The apparatus includes a plurality of top felted drying sections for drying the web. Each of the drying sections is arranged in succession such that the web is restrained against cross-machine and machine directional shrinkage during passage of the web through the plurality of drying sections. A further single drying section only is disposed downstream relative to the plurality of drying sections such that the web extends between the plurality of drying sections and the further drying section. The further drying section includes an upper tier of dryers and an upper plurality of rolls which are disposed between adjacent dryers of the upper tier. An upper felt extends alternately around each dryer of the upper tier and each roll of the upper plurality of rolls. The further drying section also includes a lower tier of dryers and a lower plurality of rolls disposed between adjacent dryers of the lower tier.
    Type: Grant
    Filed: April 24, 1992
    Date of Patent: December 14, 1993
    Assignee: Beloit Technologies, Inc.
    Inventors: Duke N. Sims, Gregory L. Wedel
  • Patent number: 5249372
    Abstract: A single tier drying section is disclosed for drying a web. The drying section includes a dryer and a felt guided about the dryer such that the web is disposed between the dryer and the felt for drying a first side of the web. A further dryer is disposed downstream relative to the dryer and a further felt is guided about the further dryer such that the web is disposed between the further dryer and the further felt for drying a second side of the web. A dryer transfer mechanism is used for transferring the web from the dryer to the further dryer.
    Type: Grant
    Filed: April 9, 1992
    Date of Patent: October 5, 1993
    Assignee: Beloit Technologies, Inc.
    Inventor: Gregory L. Wedel
  • Patent number: 5241760
    Abstract: A dryer apparatus is disclosed for drying a pressed web. The apparatus includes a plurality of single tier dryer sections in which successive sections dry alternate sides of the web, the web being transferred between successive sections without any open draw of the web such that the web is uniformly dried on both sides thereof while the web is restrained against cross-machine directional shrinkage. Each of the sections includes a single tier of dryers with an intermediate roll disposed between each adjacent dryer. A dryer felt extends in serpentine configuration around each dryer and roll such that the web is disposed between the felt and each dryer for drying one side of the web. The felt is also disposed between the roll and the web with the felt in direct contact with an alternate side of the web. The intermediate roll defines a plurality of circumferential grooves for diffusing boundary air following the felt that would otherwise tend to lift the web from the felt extending around the roll.
    Type: Grant
    Filed: October 31, 1990
    Date of Patent: September 7, 1993
    Assignee: Beloit Technologies, Inc.
    Inventor: Gregory L. Wedel
  • Patent number: 5175945
    Abstract: An apparatus is disclosed for drying a web of paper emerging from a press section of a papermaking machine. The apparatus incudes a first dryer section means for initiating the drying of the first side of the web. A first transfer arrangement transfers the web from the press section to the first dryer section. A second dryer section is disposed downstream relative to the first dryer section for initiating the drying of a second side of the web, the second side of the web being opposite to the first side thereof. A first dryer transfer arrangement transfer the web without open draw between the first and second dryer sections. The first dryer transfer arrangement permits both threading of the web without the assistance of threading ropes and the drying of both sides of the web.
    Type: Grant
    Filed: October 26, 1989
    Date of Patent: January 5, 1993
    Assignee: Beloit Corporation
    Inventors: Borgeir Skaugen, Gregory L. Wedel
  • Patent number: 5152078
    Abstract: A vacuum roll transfer apparatus is disclosed for drying a web extending through a single tier dryer section of a paper machine. The apparatus includes a rotatable perforate shell having a first and a second end. A stationary duct is disposed within and along the length of the shell between the ends of the shell. The duct is connected to a source of partial vacuum and the shell defines a plurality of holes along the length thereof such that in use of the apparatus, when the duct is connected to the source of partial vacuum, a partial vacuum is generated within a chamber defined between the shell and the duct. A flow restricting arrangement is disposed within the duct for generating a greater vacuum level adjacent to at least one of the ends of the shell for facilitating threading of a tail of the web.
    Type: Grant
    Filed: March 18, 1991
    Date of Patent: October 6, 1992
    Assignee: Beloit Corporation
    Inventor: Gregory L. Wedel
  • Patent number: 5144758
    Abstract: A papermachine drying apparatus is disclosed for drying a first and a second side of the web. The apparatus includes a first single tier drying section for drying only the first side of the web. The first drying section includes a first plurality of dryer cylinders for drying the first side of the web, and a first plurality of vacuum rolls disposed in close proximity between adjacent dryer cylinders of the first plurality of dryer cylinders. A second single tier drying section for drying only the second side of the web in which the drying section includes a second plurality of dryer cylinders for drying the second side of the web, such cylinders being disposed immediately downstream relative to the first drying section. A second plurality of vacuum rolls are arranged such that each vacuum roll is disposed in close proximity between adjacent dryer cylinders of the second plurality of dryer cylinders.
    Type: Grant
    Filed: November 14, 1991
    Date of Patent: September 8, 1992
    Inventors: Borgeir Skaugen, Gregory L. Wedel
  • Patent number: 5101577
    Abstract: A transfer apparatus is disclosed for transferring a web from an upstream dryer to a downstream dryer of a dryer section. The apparatus includes a first dryer felt which extends around the upstream dryer for supporting the web such that the web is disposed between the first felt and the upstream dryer for drying a first side of the web. The first felt roll is disposed downstream relative to the upstream dryer for guiding the first felt such that the first felt diverges relative to the upstream dryer and extends from the upstream dryer to and around the first felt roll. A second felt roll is disposed between the upstream dryer and the first felt roll such that the web is disposed between the second felt roll and the first felt. A second dryer felt extends around the downstream dryer for supporting the web such that the web is disposed between the second dryer felt and the downstream dryer for drying a second side of the web.
    Type: Grant
    Filed: November 3, 1989
    Date of Patent: April 7, 1992
    Assignee: Beloit Corporation
    Inventor: Gregory L. Wedel
  • Patent number: 5065529
    Abstract: A single tier drying section is disclosed for drying a web. The drying section includes a dryer and a felt guided about the dryer such that the web is disposed between the dryer and the felt for drying a first side of the web. A further dryer is disposed downstream relative to the dryer and a further felt is guided about the further dryer such that the web is disposed between the further dryer and the further felt for drying a second side of the web. A dryer transfer mechanism is used for transferring the web from the dryer to the further dryer.
    Type: Grant
    Filed: February 27, 1990
    Date of Patent: November 19, 1991
    Assignee: Beloit Corporation
    Inventors: Borgeir Skaugen, Gregory L. Wedel
  • Patent number: 5037509
    Abstract: An apparatus is disclosed for transferring a threading tail of a web from a press section to a dryer section of a papermaking machine. The apparatus includes a press roll for releasably supporting the web and a doctor blade which cooperates with the press roll. A tail cutting device is disposed upstream relative to the blade for cutting the tail from the web. A lead-in roll is disposed adjacent to the press roll. The lead-in roll includes a suction tail box which cooperates with the tail. A device moves the lead-in roll from a first to a second location with the first location being in close proximity to the press roll such that when the tail box is connected to a source of vacuum, the tail is drawn away from the press roll onto a dryer felt extending around the lead-in roll. The second location is spaced from the press roll such that an open draw is established between the press roll and the lead-in roll.
    Type: Grant
    Filed: October 29, 1990
    Date of Patent: August 6, 1991
    Assignee: Beloit Corporation
    Inventor: Gregory L. Wedel
  • Patent number: 5031338
    Abstract: A vacuum roll transfer apparatus is disclosed for drying a web extending through a single tier dryer section of a paper machine. The apparatus includes a rotatable perforate shell having a first and a second end. A stationary duct is disposed within and along the length of the shell between the ends of the shell. The duct is connected to a source of partial vacuum and the shell defines a plurality of holes along the length thereof such that in use of the apparatus, when the duct is connected to the source of partial vacuum, a partial vacuum is generated within a chamber defined between the shell and the duct. A flow restricting arrangement is disposed within the duct for generating a greater vacuum level adjacent to at least one of the ends of the shell for facilitating threading of a tail of the web.
    Type: Grant
    Filed: November 9, 1990
    Date of Patent: July 16, 1991
    Assignee: Beloit Corporation
    Inventor: Gregory L. Wedel
  • Patent number: 5020238
    Abstract: A vacuum guide roll apparatus is disclosed for guiding a web between an upstream dryer and a downstream dryer of a dryer section. The apparatus includes a perforate roll shell having a first and a second end. The shell defines an elongate chamber which extends between the first and the second ends. A first and second shaft are rigidly secured to and disposed coaxially relative to the shell. The shafts are disposed adjacent to the first and second ends respectively of the shell. The shafts define respectively a first and second journal. A first and second bearing cooperate with the first and second journals respectively for rotatably supporting the roll shell. A housing is disposed coaxially relative to the shell and adjacent to one of the shafts. The housing defines a passageway which is connected to a source of partial vacuum. A first annular seal is disposed between the housing and the one shaft for sealing the housing relative to the one shaft.
    Type: Grant
    Filed: May 17, 1990
    Date of Patent: June 4, 1991
    Assignee: Beloit Corporation
    Inventors: Gregory L. Wedel, Arnold J. Roerig
  • Patent number: 4974340
    Abstract: A vacuum guide roll apparatus is disclosed for guiding a web between an upstream dryer and a downstream dryer of a dryer section. The apparatus includes a perforate roll shell having a first and a second end. The shell defines an elongate chamber which extends between the first and the second ends. A first and second shaft are rigidly secured to and disposed coaxially relative to the shell. The shafts are disposed adjacent to the first and second ends respectively of the shell. The shafts define respectively a first and second journal. A first and second bearing cooperate with the first and second journals respectively for rotatably supporting the roll shell. A housing is disposed coaxially relative to the shell and adjacent to one of the shafts. The housing defines a passageway which is connected to a source of partial vacuum. A first annular seal is disposed between the housing and the one shaft for sealing the housing relative to the one shaft.
    Type: Grant
    Filed: October 31, 1989
    Date of Patent: December 4, 1990
    Assignee: Beloit Corporation
    Inventors: Gregory L. Wedel, Arnold J. Roerig
  • Patent number: D320105
    Type: Grant
    Filed: June 19, 1990
    Date of Patent: September 17, 1991
    Assignee: Beloit Corporation
    Inventors: Borgeir Skaugen, Gregory L. Wedel
  • Patent number: D321269
    Type: Grant
    Filed: June 19, 1990
    Date of Patent: October 29, 1991
    Assignee: Beloit Corporation
    Inventors: Borgeir Skaugen, Gregory L. Wedel
  • Patent number: D333710
    Type: Grant
    Filed: October 29, 1991
    Date of Patent: March 2, 1993
    Assignee: Beloit Technologies, Inc.
    Inventors: Borgeir Skaugen, Gregory L. Wedel
  • Patent number: D340325
    Type: Grant
    Filed: November 25, 1991
    Date of Patent: October 12, 1993
    Assignee: Beloit Technologies, Inc.
    Inventors: Borgeir Skaugen, Gregory L. Wedel