Patents by Inventor James F. Campbell

James F. Campbell 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: 10933604
    Abstract: A machine for making bags is disclosed and includes input, drum, and output sections. The drum section has at least one seal bar on a drum. The sections are mounted to side frames that are single metal plates. The frames are not coated after being formed and/or are comprised of at least one of galvanized steel, galvannealed steel, stainless steel or aluminum. The drum is comprised of first and second plates, and opposing third and fourth plates. The first plate is rotatable with respect to the second plate, and the third plate is rotatable with respect to the fourth plate. The distance from the seal bars to the center of the drum is responsive to the rotation of the plates. The first plate has a plurality of non-radial grooves, and the second plate has a plurality of radial slots, with fixtures in the slots and grooves. The fixtures are connected to seal bars. The non-radial grooves are curved and/or spiraled. The plates are comprised of zinc plated steel and/or are discs.
    Type: Grant
    Filed: February 20, 2018
    Date of Patent: March 2, 2021
    Assignee: CMD Corporation
    Inventors: Paul A. Selle, Christopher L. White, James F. Campbell, Timothy J. Rymer
  • Publication number: 20180169990
    Abstract: A machine for making bags is disclosed and includes input, drum, and output sections. The drum section has at least one seal bar on a drum. The sections are mounted to side frames that are single metal plates. The frames are not coated after being formed and/or are comprised of at least one of galvanized steel, galvannealed steel, stainless steel or aluminum. The drum is comprised of first and second plates, and opposing third and fourth plates. The first plate is rotatable with respect to the second plate, and the third plate is rotatable with respect to the fourth plate. The distance from the seal bars to the center of the drum is responsive to the rotation of the plates. The first plate has a plurality of non-radial grooves, and the second plate has a plurality of radial slots, with fixtures in the slots and grooves. The fixtures are connected to seal bars. The non-radial grooves are curved and/or spiraled. The plates are comprised of zinc plated steel and/or are discs.
    Type: Application
    Filed: February 20, 2018
    Publication date: June 21, 2018
    Applicant: CMD Corporation
    Inventors: Paul A. Selle, Christopher L. White, James F. Campbell, Timothy J. Rymer
  • Patent number: 9925734
    Abstract: A bag machine includes input, drum, and output sections. The drum has at least one seal bar. The sections are mounted to side frames that are single metal plates, not coated after being formed, and/or are comprised of galvanized steel, galvannealed steel, stainless steel or aluminum. The drum has opposing pairs of rotatable zinc plated steel plates. The distance from the seal bars to the drum center responds to the plates rotating. One plate has non-radial (such as curved and/or spiraled) grooves, and the other radial slots, with fixtures having seal bars in the slots and grooves. The winder has a rotatable turret with center and surface wind and center wind only positions. When one collapsible spindle is in the center and surface wind position, another is in the center wind only position. A push off palm mounted in a push off position.
    Type: Grant
    Filed: April 20, 2011
    Date of Patent: March 27, 2018
    Assignee: CMD Corporation
    Inventors: Paul A. Selle, Christopher L. White, James F. Campbell, Timothy J. Rymer
  • Publication number: 20120270713
    Abstract: A machine for making bags is disclosed and includes input, drum, and output sections. The drum section has at least one seal bar on a drum. The sections are mounted to side frames that are single metal plates. The frames are not coated after being formed and/or are comprised of at least one of galvanized steel, galvannealed steel, stainless steel or aluminum. The drum is comprised of first and second plates, and opposing third and fourth plates. The first plate is rotatable with respect to the second plate, and the third plate is rotatable with respect to the fourth plate. The distance from the seal bars to the center of the drum is responsive to the rotation of the plates. The first plate has a plurality of non-radial grooves, and the second plate has a plurality of radial slots, with fixtures in the slots and grooves. The fixtures are connected to seal bars. The non-radial grooves are curved and/or spiraled. The plates are comprised of zinc plated steel and/or are discs.
    Type: Application
    Filed: April 20, 2011
    Publication date: October 25, 2012
    Applicant: CMD Corporation
    Inventors: Paul A. Selle, Christopher L. White, James F. Campbell, Timothy J. Rymer
  • Patent number: 5093449
    Abstract: A styrene-butadiene composition containing about 0.1 to 10 weight % of a monoester of maleic acid or fumaric acid provides improved bonding strength. In addition, small amounts of a functional monomer can also be included.
    Type: Grant
    Filed: October 24, 1989
    Date of Patent: March 3, 1992
    Assignee: Reichhold Chemicals, Inc.
    Inventors: Rebecca L. Durney Cronin, W. Scott Rutherford, James F. Campbell
  • Patent number: 4876293
    Abstract: The present invention is based upon the discovery that a styrene-butadiene composition contatining about 0.1 to 10 weight % of a monoester of maleic acid or fumaric acid provides improved bonding strength. In addition, small amounts of a functional monomer can also be included.
    Type: Grant
    Filed: July 18, 1988
    Date of Patent: October 24, 1989
    Assignee: Reichhold Chemicals, Inc.
    Inventors: Cronin Rebecca L. Durney, Rutherford W. Scott, James F. Campbell
  • Patent number: 4650173
    Abstract: A method and apparatus for operating a diaper-producing machine where a series of unfolded diapers are advanced along a path containing a plurality of stackers each having a folding blade, the apparatus having means for periodically altering the movement of one blade to permit diaper movement past that stacker to a subsequent one, thereby continuing stacking while a previously completed stack is removed.
    Type: Grant
    Filed: May 16, 1985
    Date of Patent: March 17, 1987
    Assignee: Paper Converting Machine Co.
    Inventors: Gary E. Johnson, Andrew M. Van Egeren, James F. Campbell, Harvey J. Spencer
  • Patent number: 4523671
    Abstract: Selected products moving along an input path are diverted to one of a plurality of output paths for stacking. A rotating drum is positioned between the input path and the output paths, and a plurality of vacuum pucks are mounted on the drum for transverse sliding movement parallel to the axis of rotation. As the puck moves in an arcuate plane between the input path and the output paths, a cam moves the pucks transversely from alignment with an input path into alignment with one of a plurality of output paths.
    Type: Grant
    Filed: June 21, 1983
    Date of Patent: June 18, 1985
    Assignee: Paper Converting Machine Company
    Inventor: James F. Campbell
  • Patent number: 4394898
    Abstract: A method and apparatus for providing balanced stacks of diapers where a series of diapers are advanced toward a drum equipped with an even number of turning devices adapted for vacuum-actuated engagement of the diapers and cam means are associated with the drum for rotating alternate of the devices 90.degree. to the right and the remainder of the devices 90.degree. to the left so that adjacent diapers in the series are disposed 180.degree. to each other.
    Type: Grant
    Filed: April 23, 1981
    Date of Patent: July 26, 1983
    Assignee: Paper Converting Machine Company
    Inventor: James F. Campbell
  • Patent number: 4173846
    Abstract: A sharpening device for an orbital saw involving a pair of circular grinding stones freely journalled in a sub-assembly which in turn is slidably and pivotally mounted on the frame of the saw while being pivotally supported on the member providing the orbital motion for the saw.
    Type: Grant
    Filed: January 23, 1978
    Date of Patent: November 13, 1979
    Assignee: Paper Converting Machine Company
    Inventors: Gary F. Steiner, James F. Campbell