Patents by Inventor David J. Gilbertson

David J. Gilbertson 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: 9902189
    Abstract: A vertical file folder system is disclosed in several embodiments. The folder (10) has a plurality of pocket segments 20, 30, 32 which are joined together at their bottom by living hinges 38 which maintain the bottoms edges 16, 116, 216 spaced apart. Port 28 also allow for expansion as do slots 60. An alternative embodiment (FIG. 9-10) show a folder which has a bottom flap 320, side flap 322 and top flap 318 which overlie each other to create a three sided boundary for papers or other contents.
    Type: Grant
    Filed: May 23, 2016
    Date of Patent: February 27, 2018
    Assignee: Smead Manufacturing Company
    Inventors: David J. Gilbertson, Daniel Seleski
  • Patent number: 9839937
    Abstract: A prong style file fastener, and method of manufacturer, is disclosed which has a protective element to prevent damage to paper documents and personal injury. In one embodiment, the prongs of the fastener are covered with a powder coating which is melted thereon. In the case of the powdercoat covering, the production line uses a cam drive sprocket retractor system to release the line onto a takeup.
    Type: Grant
    Filed: July 23, 2014
    Date of Patent: December 12, 2017
    Assignee: Smead Manufacturing Company
    Inventors: Harold Peter Lindelof, Marvin J. Halfen, David J. Gilbertson
  • Publication number: 20160263933
    Abstract: A vertical file folder system is disclosed in several embodiments. The folder (10) has a plurality of pocket segments 20, 30, 32 which are joined together at their bottom by living hinges 38 which maintain the bottoms edges 16, 116, 216 spaced apart. Port 28 also allow for expansion as do slots 60. An alternative embodiment (FIG. 9-10) show a folder which has a bottom flap 320, side flap 322 and top flap 318 which overlie each other to create a three sided boundary for papers or other contents.
    Type: Application
    Filed: May 23, 2016
    Publication date: September 15, 2016
    Inventors: David J. Gilbertson, Daniel Seleski
  • Patent number: 9346588
    Abstract: A vertical file folder system is disclosed in several embodiments. The folder (10) has a plurality of pocket segments 20, 30, 32 which are joined together at their bottom by living hinges 38 which maintain the bottoms edges 16, 116, 216 spaced apart. Port 28 also allow for expansion as do slots 60. An alternative embodiment (FIG. 9-10) show a folder which has a bottom flap 320, side flap 322 and top flap 318 which overlie each other to create a three sided boundary for papers or other contents.
    Type: Grant
    Filed: November 27, 2013
    Date of Patent: May 24, 2016
    Assignee: Smead Manufacturing Company
    Inventors: David J. Gilbertson, Daniel Seleski
  • Patent number: 9296247
    Abstract: Pocket folders for holding documents and method of manufacture are shown in various embodiments. In one embodiment, a single unitary blank is cut and folded into a double slot folder without the need to glue pieces together. The blank is cut to have adjacent panels and an extension panel cut so that they are folded one panel atop the other to form a unitary pocket folder with two pockets. In a second embodiment, a two pocket folder is formed likewise with three adjacent panels as in the first embodiment, but the extension panel is then wrapped with a back panel to create a second pocket which can be folded outwardly.
    Type: Grant
    Filed: March 3, 2014
    Date of Patent: March 29, 2016
    Assignee: Smead Manufacturing Company
    Inventors: Duane Christensen, David J. Gilbertson
  • Patent number: 9114597
    Abstract: A prong style file fastener and the method of manufacture is disclosed which has a protective element to prevent damage to paper documents and personal injury. In one embodiment, the prongs of the fastener are covered with a heat shrinkable sheath. In another, the prongs are overcoated with a powder coating which is melted thereon. A method of applying the sheath to the prongs uses a pair of jaws or V-shaped surface to drive the sheath onto the prongs.
    Type: Grant
    Filed: May 9, 2014
    Date of Patent: August 25, 2015
    Assignee: Smead Manufacturing Company
    Inventors: Harold Peter Lindelof, Marvin J. Halfen, David J. Gilbertson, Robert Scudder, Michael Goodson, Michael Hacker
  • Publication number: 20140252074
    Abstract: Pocket folders for holding documents and method of manufacture are shown in various embodiments. In one embodiment, a single unitary blank is cut and folded into a double slot folder without the need to glue pieces together. The blank is cut to have adjacent panels and an extension panel cut so that they are folded one panel atop the other to form a unitary pocket folder with two pockets. In a second embodiment, a two pocket folder is formed likewise with three adjacent panels as in the first embodiment, but the extension panel is then wrapped with a back panel to create a second pocket which can be folded outwardly.
    Type: Application
    Filed: March 3, 2014
    Publication date: September 11, 2014
    Applicant: SMEAD MANUFACTURING COMPANY
    Inventors: Duane Christensen, David J. Gilbertson
  • Patent number: 8747588
    Abstract: A prong style file fastener, and method of manufacturer, is disclosed which has a protective element to prevent damage to paper documents and personal injury. In one embodiment, the prongs of the fastener is covers with a heat shrinkable sheath. In another, the prongs are overcoated with a powder coating which is melted thereon. A method of applying the sheath to the prongs uses a pair of jaws to drive the sheath onto the prongs. In the case of the powdercoat covering, the production line uses a cam drive sprocket retractor to release the line onto a takeup.
    Type: Grant
    Filed: September 8, 2011
    Date of Patent: June 10, 2014
    Assignee: Smead Manufacturing Company
    Inventors: Harold Peter Lindelof, Marvin J. Halfen, David J. Gilbertson
  • Patent number: 8746314
    Abstract: A prong style file fastener and the method of manufacture is disclosed which has a protective element to prevent damage to paper documents and personal injury. In one embodiment, the prongs of the fastener are covered with a heat shrinkable sheath. In another, the prongs are overcoated with a powder coating which is melted thereon. A method of applying the sheath to the prongs uses a pair of jaws or V-shaped surface to drive the sheath onto the prongs.
    Type: Grant
    Filed: November 10, 2011
    Date of Patent: June 10, 2014
    Assignee: Smead Manufacturing Company
    Inventors: Harold Peter Lindelof, Marvin J. Halfen, David J. Gilbertson, Robert Scudder, Michael Goodson, Michael Hacker
  • Publication number: 20140151442
    Abstract: A vertical file folder system is disclosed in several embodiments. The folder (10) has a plurality of pocket segments 20, 30, 32 which are joined together at their bottom by living hinges 38 which maintain the bottoms edges 16, 116, 216 spaced apart. Port 28 also allow for expansion as do slots 60. An alternative embodiment (FIG. 9-10) show a folder which has a bottom flap 320, side flap 322 and top flap 318 which overlie each other to create a three sided boundary for papers or other contents.
    Type: Application
    Filed: November 27, 2013
    Publication date: June 5, 2014
    Inventors: David J. Gilbertson, Daniel Seleski
  • Patent number: 8650784
    Abstract: The folder is formed from a single sheet, folded along a fold line to form opposing walls. Each wall, at its top, includes a retaining portion that folds over a metal or plastic channel rod and includes a series of horizontally-spaced holes. The holes extend vertically over the lower edge or a rib of the channel rod. Each channel rod extends laterally past the edge of the folder and includes notches or hook ends that engage a pair of rails. Each tab includes a clip portion that opens downward. The clip portion includes two vertically-oriented inner faces, one or both of which includes inward-facing dimples or protrusions that fit at least partially into the holes in the retaining portion. At least one optional protrusion may be locating, meaning that the top of the protrusion does not engage the channel rod when the tab is fully attached.
    Type: Grant
    Filed: November 30, 2010
    Date of Patent: February 18, 2014
    Assignee: Smead Manufacturing Company
    Inventors: Marvin Halfen, David J. Gilbertson
  • Patent number: 8414211
    Abstract: A prong style file fastener, and method of manufacturer, is disclosed which has a protective element to prevent damage to paper documents and personal injury. In one embodiment, the prongs of the fastener is covered with a heat shrinkable sheath. In another, the prongs are overcoated with a powder coating which is melted thereon.
    Type: Grant
    Filed: November 10, 2011
    Date of Patent: April 9, 2013
    Assignee: Smead Manufacturing Company
    Inventors: Harold Peter Lindelof, Marvin J. Halfen, David J. Gilbertson, Robert Scudder, Michael Goodson, Michael Hacker
  • Publication number: 20110127317
    Abstract: The folder is formed from a single sheet, folded along a fold line to form opposing walls. Each wall, at its top, includes a retaining portion that folds over a metal or plastic channel rod and includes a series of horizontally-spaced holes. The holes extend vertically over the lower edge or a rib of the channel rod. Each channel rod extends laterally past the edge of the folder and includes notches or hook ends that engage a pair of rails. Each tab includes a clip portion that opens downward. The clip portion includes two vertically-oriented inner faces, one or both of which includes inward-facing dimples or protrusions that fit at least partially into the holes in the retaining portion. At least one optional protrusion may be locating, meaning that the top of the protrusion does not engage the channel rod when the tab is fully attached.
    Type: Application
    Filed: November 30, 2010
    Publication date: June 2, 2011
    Inventors: Marvin Halfen, David J. Gilbertson
  • Patent number: D734390
    Type: Grant
    Filed: March 6, 2013
    Date of Patent: July 14, 2015
    Assignee: Smead Manufacturing Company
    Inventors: Duane Christensen, David J. Gilbertson
  • Patent number: D739460
    Type: Grant
    Filed: December 2, 2012
    Date of Patent: September 22, 2015
    Assignee: Smead Manufacturing Company
    Inventors: David J. Gilbertson, Daniel Seleski
  • Patent number: D744587
    Type: Grant
    Filed: July 13, 2015
    Date of Patent: December 1, 2015
    Assignee: Smead Manufacturing Company
    Inventors: Duane Christensen, David J. Gilbertson