Patents by Inventor Brian H. Stewartson

Brian H. Stewartson 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: 11911994
    Abstract: A supply of single-ply, fan-folded sheet stock material includes a holder that facilitates simultaneously loading multiple plies of sheet stock material into a dunnage conversion machine for conversion into a dunnage product. The holder has inclined support surfaces and intersecting support walls that support the support surfaces in their inclined orientations. The holder has a W-shape cross-section, with inclined outer support surfaces and inclined inner support surfaces that may meet in the middle. The inner support surfaces generally are perpendicular to adjacent outer support surfaces to support a generally rectangular stack and sub-stacks of single-ply, fan-folded sheet stock material. The inclined support surfaces of the holder facilitate splitting the stack in half and supporting the two sub-stacks so that pages on top of the two stacks, connected by a center fold line, can be drawn into the conversion machine simultaneously.
    Type: Grant
    Filed: May 12, 2022
    Date of Patent: February 27, 2024
    Assignee: Ranpak Corp.
    Inventors: Robert C. Cheich, Brian H. Stewartson
  • Publication number: 20220266564
    Abstract: A supply of single-ply, fan-folded sheet stock material includes a holder that facilitates simultaneously loading multiple plies of sheet stock material into a dunnage conversion machine for conversion into a dunnage product. The holder has inclined support surfaces and intersecting support walls that support the support surfaces in their inclined orientations. The holder has a W-shape cross-section, with inclined outer support surfaces and inclined inner support surfaces that may meet in the middle. The inner support surfaces generally are perpendicular to adjacent outer support surfaces to support a generally rectangular stack and sub-stacks of single-ply, fan-folded sheet stock material. The inclined support surfaces of the holder facilitate splitting the stack in half and supporting the two sub-stacks so that pages on top of the two stacks, connected by a center fold line, can be drawn into the conversion machine simultaneously.
    Type: Application
    Filed: May 12, 2022
    Publication date: August 25, 2022
    Inventors: Robert C. Cheich, Brian H. Stewartson
  • Patent number: 11358361
    Abstract: A supply of single-ply, fan-folded sheet stock material (100) includes a holder that has inclined support surfaces (114, 116, 120, 122) and intersecting support walls (124, 126) that support the support surfaces in their inclined orientations. The holder has a W-shape cross-section, with inclined outer support surfaces (114, 116) and inclined inner support surfaces (120, 122) that may meet in the middle. The inner support surfaces generally are perpendicular to adjacent outer support surfaces to support a generally rectangular stack (102) and sub-stacks (110, 112) of single-ply, fan-folded sheet stock material. A method includes laying open a stack of single-ply fan-folded sheet stock material to form two sub-stacks of sheet stock material and operating a dunnage conversion machine to simultaneously draw sheet stock material from both sub-stacks of sheet stock material, thereby providing a two-ply sheet stock material for conversion into a dunnage product.
    Type: Grant
    Filed: October 26, 2017
    Date of Patent: June 14, 2022
    Assignee: Ranpak Corp.
    Inventors: Robert C. Cheich, Brian H. Stewartson
  • Publication number: 20190337257
    Abstract: A supply of single-ply, fan-folded sheet stock material (100) includes a holder that has inclined support surfaces (114, 116, 120, 122) and intersecting support walls (124, 126) that support the support surfaces in their inclined orientations. The holder has a W-shape cross-section, with inclined outer support surfaces (114, 116) and inclined inner support surfaces (120, 122) that may meet in the middle. The inner support surfaces generally are perpendicular to adjacent outer support surfaces to support a generally rectangular stack (102) and sub-stacks (110, 112) of single-ply, fan-folded sheet stock material. A method includes laying open a stack of single-ply fan-folded sheet stock material to form two sub-stacks of sheet stock material and operating a dunnage conversion machine to simultaneously draw sheet stock material from both sub-stacks of sheet stock material, thereby providing a two-ply sheet stock material for conversion into a dunnage product.
    Type: Application
    Filed: October 26, 2017
    Publication date: November 7, 2019
    Inventors: Robert C. CHEICH, Brian H. STEWARTSON
  • Publication number: 20130313277
    Abstract: A compact system (10) for dispensing a dunnage product (14) includes the combination of a container (16) for a supply of fan-folded sheet stock material (12) and a feed assembly (20) for drawing the stock material (12) from the container (16). The container (16) has an opening (26) with a dimension that is smaller than a corresponding dimension, particularly a width dimension, of the container (16). A leading end (30) of the sheet material (12) is pulled from the container (16), through the opening (26). Then the container (16) is inverted and supported above the feed assembly (20) with the opening (26) facing and aligned with a linear path (24) through the feed assembly (20). The container (16) is supported such that rotating members (22) in the feed assembly (20) can engage the leading end (30) of the stock material (12) and draw the stock material (12) from the container (16) and along the linear path (24) through the feed assembly (20), which dispenses the dunnage product (14).
    Type: Application
    Filed: December 16, 2011
    Publication date: November 28, 2013
    Applicant: RANPAK CORPORATION
    Inventor: Brian H. Stewartson