Patents by Inventor Gregory J. Saxton

Gregory J. Saxton 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: 11820407
    Abstract: A covered hopper railroad freight car having a car body whose opposite longitudinal sides include substantially flat, parallel, generally vertical upper side wall portions free from outwardly protruding structural strength members.
    Type: Grant
    Filed: September 9, 2020
    Date of Patent: November 21, 2023
    Assignee: Gunderson LLC
    Inventors: Gregory J. Saxton, Michael Gillis
  • Patent number: 11702117
    Abstract: Subassemblies for railroad tank cars are herein disclosed. In some embodiments, the subassembly includes a center sill including a generally horizontal top member and a pair of upright side plates spaced apart laterally from each other and a head brace having a lower margin welded to the top member of the center sill and an upper margin welded to the head of the tank. Each of the side plates having a top surface and an opposed bottom surface, the top surface being planar within a longitudinal central portion and at least a substantial part of a first longitudinal end portion. The bottom surface is planar and parallel to the top surface within the longitudinal central portion and a second longitudinal end portion. At least a substantial part of the bottom surface within the first longitudinal end portion has a shape that includes or approximates one or more radiuses of curvature.
    Type: Grant
    Filed: March 10, 2021
    Date of Patent: July 18, 2023
    Assignee: Gunderson LLC
    Inventors: Hariharanath Kavuri, Spencer Ashie-Winns, Mathew Curtis, Gregory J. Saxton
  • Publication number: 20230083126
    Abstract: Open top gondola railcars and closure assemblies for cleanout openings of those railcars are disclosed. In some embodiments, the closure assembly includes a closure member sized to be received in a cleanout opening and to span a substantial portion of the cleanout opening to define at least one gap between a closure perimeter and a floor perimeter. The closure assembly additionally includes a sealing member fixedly attached to, or formed with, the closure member. The sealing member spans between the floor perimeter and the closure perimeter to cover the at least one gap. The closure assembly further includes a tethering member having opposed first and second end portions. The first end portion is fixedly attached to the closure member and the second end portion is attached to one of the floor or a cross bearer of the open top gondola railcar.
    Type: Application
    Filed: September 16, 2021
    Publication date: March 16, 2023
    Applicant: Gunderson LLC
    Inventors: Michael Gillis, Gregory J. Saxton
  • Publication number: 20220126889
    Abstract: Subassemblies for railroad tank cars are herein disclosed. In some embodiments, the subassembly includes a center sill including a generally horizontal top member and a pair of upright side plates spaced apart laterally from each other and a head brace having a lower margin welded to the top member of the center sill and an upper margin welded to the head of the tank. Each of the side plates having a top surface and an opposed bottom surface, the top surface being planar within a longitudinal central portion and at least a substantial part of a first longitudinal end portion. The bottom surface is planar and parallel to the top surface within the longitudinal central portion and a second longitudinal end portion. At least a substantial part of the bottom surface within the first longitudinal end portion has a shape that includes or approximates one or more radiuses of curvature.
    Type: Application
    Filed: March 10, 2021
    Publication date: April 28, 2022
    Applicant: Gunderson LLC
    Inventors: Hariharanath Kavuri, Spencer Ashie-Winns, Mathew Curtis, Gregory J. Saxton
  • Patent number: 11142225
    Abstract: A covered hopper railroad freight car having a car body whose opposite longitudinal sides include generally flat, parallel, substantially vertical upper side wall portions free from outwardly protruding structural strength members. A top chord of each of the side walls of the car is defined by a pair of parallel bend lines extending longitudinally along the upper margin of each side wall, and a roof is welded to the top chords of the side walls.
    Type: Grant
    Filed: January 28, 2019
    Date of Patent: October 12, 2021
    Assignee: Gunderson LLC
    Inventor: Gregory J. Saxton
  • Publication number: 20200406938
    Abstract: A covered hopper railroad freight car having a car body whose opposite longitudinal sides include substantially flat, parallel, generally vertical upper side wall portions free from outwardly protruding structural strength members.
    Type: Application
    Filed: September 9, 2020
    Publication date: December 31, 2020
    Applicant: Gunderson LLC
    Inventors: Gregory J. Saxton, Michael Gillis
  • Publication number: 20200239039
    Abstract: A covered hopper railroad freight car having a car body whose opposite longitudinal sides include generally flat, parallel, substantially vertical upper side wall portions free from outwardly protruding structural strength members. A top chord of each of the side walls of the car is defined by a pair of parallel bend lines extending longitudinally along the upper margin of each side wall, and a roof is welded to the top chords of the side walls.
    Type: Application
    Filed: January 28, 2019
    Publication date: July 30, 2020
    Applicant: Gunderson LLC
    Inventor: Gregory J. SAXTON
  • Patent number: 10562548
    Abstract: Articulated connectors are attached to and extend from center sills of adjacent car units of a multi-unit railroad freight car, connecting the car units to each other and to a shared truck. The center sill of each of the car units includes a top member that is of increased thickness at the outer end of the center sill. A weld extending along a shoulder that extends around the main body of s portion of the articulated connector attaches the articulated connector portion to the outer end of the center sill with ample strength to carry draft and buff train loads as well as the weight of the car unit and its lading, without the need for weld joints inside the center sill.
    Type: Grant
    Filed: August 16, 2017
    Date of Patent: February 18, 2020
    Assignee: Gunderson LLC
    Inventor: Gregory J Saxton
  • Publication number: 20190054934
    Abstract: Articulated connectors are attached to and extend from center sills of adjacent car units of a multi-unit railroad freight car, connecting the car units to each other and to a shared truck. The center sill of each of the car units includes a top member that is of increased thickness at the outer end of the center sill. A weld extending along a shoulder that extends around the main body of s portion of the articulated connector attaches the articulated connector portion to the outer end of the center sill with ample strength to carry draft and buff train loads as well as the weight of the car unit and its lading, without the need for weld joints inside the center sill.
    Type: Application
    Filed: August 16, 2017
    Publication date: February 21, 2019
    Applicant: Gunderson LLC
    Inventor: Gregory J. Saxton
  • Publication number: 20180105191
    Abstract: A handbrake operating linkage for a railroad tank car, in which a hand wheel used to provide tension in the linkage is located on a lateral side of the car body, near an end of the car and at a height permitting a person standing on the ground alongside the tank car to set the handbrake. The hand wheel is located on the car at an end of the car opposite the end at which an airbrake cylinder-and-piston assembly is located, and the linkage extends from an airbrake cylinder lever to the hand wheel by way of a direction-reversing lever and a bell crank, avoiding a requirement for parts of the linkage to pass through direction-changing sheave wheels.
    Type: Application
    Filed: November 9, 2016
    Publication date: April 19, 2018
    Applicant: Gunderson LLC
    Inventors: Gregory J. Saxton, Kristofer M. Heitmeyer
  • Patent number: 9944302
    Abstract: A handbrake operating linkage for a railroad tank car, in which a hand wheel used to provide tension in the linkage is located on a lateral side of the car body, near an end of the car and at a height permitting a person standing on the ground alongside the tank car to set the handbrake. The hand wheel is located on the car at an end of the car opposite the end at which an airbrake cylinder-and-piston assembly is located, and the linkage extends from an airbrake cylinder lever to the hand wheel by way of a direction-reversing lever and a bell crank, avoiding a requirement for parts of the linkage to pass through direction-changing sheave wheels.
    Type: Grant
    Filed: November 9, 2016
    Date of Patent: April 17, 2018
    Assignee: Gunderson LLC
    Inventors: Gregory J. Saxton, Kristofer M. Heitmeyer
  • Patent number: 9694828
    Abstract: An operating mechanism for a bottom valve for a cargo tank of a railroad tank car, in which a valve operating lever is normally disconnected from a valve operating shaft and a valve operating shaft assembly includes a weak-link connector to prevent inadvertent opening of the bottom valve in case of derailment of the tank car.
    Type: Grant
    Filed: May 22, 2015
    Date of Patent: July 4, 2017
    Assignee: Gunderson LLC
    Inventors: Gregory J. Saxton, Bradley J. Thomas, Brian J. Jurvakainen
  • Patent number: 9296398
    Abstract: A railway tank car including a protective structure for the top of the tank and surrounding a manway or valve mounting nozzle to protect it against damage resulting from the car being overturned even while moving longitudinally. The protective structure may include longitudinally extending generally parallel side plates and a skid structure including longitudinally extending sloping, end portions and providing access to a manway or valve mounting assembly on the top of a nozzle. Openings may be provided in a side wall of the protective structure to give access to valve operating mechanisms extending laterally from valves. A lid for an access opening to a set of valves may include an extension that prevents a valve handle from being moved to open the valve while the lid is closed.
    Type: Grant
    Filed: November 20, 2013
    Date of Patent: March 29, 2016
    Assignee: Gunderson LLC
    Inventors: Gregory J. Saxton, Bradley J. Thomas
  • Publication number: 20150336590
    Abstract: An operating mechanism for a bottom valve for a cargo tank of a railroad tank car, in which a valve operating lever is normally disconnected from a valve operating shaft and a valve operating shaft assembly includes a weak-link connector to prevent inadvertent opening of the bottom valve in case of derailment of the tank car.
    Type: Application
    Filed: May 22, 2015
    Publication date: November 26, 2015
    Applicant: GUNDERSON LLC
    Inventors: Gregory J. Saxton, Bradley J. Thomas, Brian J. Jurvakainen
  • Publication number: 20150135986
    Abstract: A railway tank car including a protective structure for the top of the tank and surrounding a manway or valve mounting nozzle to protect it against damage resulting from the car being overturned even while moving longitudinally. The protective structure may include longitudinally extending generally parallel side plates and a skid structure including longitudinally extending sloping, end portions and providing access to a manway or valve mounting assembly on the top of a nozzle. Openings may be provided in a side wall of the protective structure to give access to valve operating mechanisms extending laterally from valves. A lid for an access opening to a set of valves may include an extension that prevents a valve handle from being moved to open the valve while the lid is closed.
    Type: Application
    Filed: November 20, 2013
    Publication date: May 21, 2015
    Applicant: GUNDERSON LLC
    Inventors: Gregory J. Saxton, Bradley J. Thomas
  • Patent number: 8291592
    Abstract: A railroad freight car with a lengthened container well, including an extended and reinforced well car unit side sill, and a method for lengthening a container well of a railroad freight car intended for carrying an intermodal cargo container. A side sill extension member is welded into position, between a body bolster at each end of the container well unit and a nearest container support assembly, and a container-well bottom assembly is lengthened at each end of the container well. A longitudinally-extending doubler plate may be welded to the longitudinally central portion of the side sill, to ensure sufficient rail clearance at mid-length of the car.
    Type: Grant
    Filed: March 17, 2010
    Date of Patent: October 23, 2012
    Assignee: Gunderson LLC
    Inventors: Gregory J. Saxton, John N. Niosi
  • Publication number: 20110226153
    Abstract: A railroad freight car with a lengthened container well, including an extended and reinforced well car unit side sill, and a method for lengthening a container well of a railroad freight car intended for carrying an intermodal cargo container. A side sill extension member is welded into position, between a body bolster at each end of the container well unit and a nearest container support assembly, and a container-well bottom assembly is lengthened at each end of the container well. A longitudinally-extending doubler plate may be welded to the longitudinally central portion of the side sill, to ensure sufficient rail clearance at mid-length of the car.
    Type: Application
    Filed: March 17, 2010
    Publication date: September 22, 2011
    Inventors: Gregory J. Saxton, John N. Niosi
  • Patent number: 7861659
    Abstract: A lightweight hopper car that includes one or more reinforcing members at specified locations, so that the hopper car has both a carrying capacity and a structural strength comparable to those of existing, heavier hopper cars. Specifically, the present application discloses that the hopper car may be reinforced at one or more locations including (i) at selective intersections between the center sill and slope sheets of cargo wells; (ii) between side slope sheets of adjacent cargo wells; (iii) at the junction between the side sheets and end slope sheets of the hopper car; and (iv) along the end combing seal between opposed carlines, if the hopper car is covered. In addition, the present application discloses a novel means of reinforcing side sheets of a rail car, including hopper cars, against the warping that commonly occurs when welding the side sheets at the car is fabricated.
    Type: Grant
    Filed: April 23, 2007
    Date of Patent: January 4, 2011
    Assignee: Gunderson LLC
    Inventors: Michael Gillis, Gregory J. Saxton, Marvin Gordon Rains
  • Patent number: 7806058
    Abstract: A head brace and a method for attaching a stub sill to a tank of a railroad tank car by the use of such a head brace. A stub sill includes side plates having ears that extend upward to support the tank near where the head of the tank is attached, and a head brace is welded to the side plates and to the head of the tank in a weld joint that can be continuous along the head brace from the ears of the side plate to the center of the head brace. Doublers may be provided on the sill where the head brace is welded to the side plates.
    Type: Grant
    Filed: March 28, 2008
    Date of Patent: October 5, 2010
    Assignee: Gunderson LLC
    Inventors: Gregory J. Saxton, John N. Niosi, Robert D. Woolston
  • Patent number: 7757610
    Abstract: A joint connecting a container corner support assembly to a body bolster and a connecting assembly portion of an end of a container well unit in connection with shortening a container well of a railroad freight car intended for carrying an intermodal freight container. A connector member is welded into position, between a transverse gusset plate of a container corner support assembly and a closure plate of a connecting assembly, to transmit forces between the gusset plate and the connecting assembly associated with a body bolster in an end of the container well unit.
    Type: Grant
    Filed: July 30, 2008
    Date of Patent: July 20, 2010
    Assignee: Gunderson LLC
    Inventors: Gregory J. Saxton, John N. Niosi, Scott D. Krupp