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).
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Patent number: 10933604Abstract: 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: GrantFiled: February 20, 2018Date of Patent: March 2, 2021Assignee: CMD CorporationInventors: Paul A. Selle, Christopher L. White, James F. Campbell, Timothy J. Rymer
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Publication number: 20180169990Abstract: 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: ApplicationFiled: February 20, 2018Publication date: June 21, 2018Applicant: CMD CorporationInventors: Paul A. Selle, Christopher L. White, James F. Campbell, Timothy J. Rymer
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Patent number: 9925734Abstract: 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: GrantFiled: April 20, 2011Date of Patent: March 27, 2018Assignee: CMD CorporationInventors: Paul A. Selle, Christopher L. White, James F. Campbell, Timothy J. Rymer
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Publication number: 20120270713Abstract: 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: ApplicationFiled: April 20, 2011Publication date: October 25, 2012Applicant: CMD CorporationInventors: Paul A. Selle, Christopher L. White, James F. Campbell, Timothy J. Rymer
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Patent number: 5093449Abstract: 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: GrantFiled: October 24, 1989Date of Patent: March 3, 1992Assignee: Reichhold Chemicals, Inc.Inventors: Rebecca L. Durney Cronin, W. Scott Rutherford, James F. Campbell
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Patent number: 4876293Abstract: 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: GrantFiled: July 18, 1988Date of Patent: October 24, 1989Assignee: Reichhold Chemicals, Inc.Inventors: Cronin Rebecca L. Durney, Rutherford W. Scott, James F. Campbell
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Patent number: 4650173Abstract: 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: GrantFiled: May 16, 1985Date of Patent: March 17, 1987Assignee: Paper Converting Machine Co.Inventors: Gary E. Johnson, Andrew M. Van Egeren, James F. Campbell, Harvey J. Spencer
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Patent number: 4523671Abstract: 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: GrantFiled: June 21, 1983Date of Patent: June 18, 1985Assignee: Paper Converting Machine CompanyInventor: James F. Campbell
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Patent number: 4394898Abstract: 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: GrantFiled: April 23, 1981Date of Patent: July 26, 1983Assignee: Paper Converting Machine CompanyInventor: James F. Campbell
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Patent number: 4173846Abstract: 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: GrantFiled: January 23, 1978Date of Patent: November 13, 1979Assignee: Paper Converting Machine CompanyInventors: Gary F. Steiner, James F. Campbell