Patents by Inventor Dennis D. Simpson

Dennis D. Simpson 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).

  • Publication number: 20240035339
    Abstract: An improved adjustable hinge for a multi-position ladder that is positionable in a variety of configurations while being ergonomic to adjust and which is structurally sound, rigid, and easy to adjust, light in weight, and has a long service life. The mating surfaces of the outer hinge plates, inner hinge plates, and inner hinge center spacer are large, contributing to overall hinge rigidity and stability. The size of the lock button and lock bracket are each relatively large, making them ergonomic to operate, while also being large enough to be operable by a gloved human hand. A method of assembling an improved adjustable hinge for a multi-position ladder that is positionable in a variety of configurations.
    Type: Application
    Filed: September 6, 2023
    Publication date: February 1, 2024
    Applicant: Tricam Industries, Inc.
    Inventors: Joseph P. Foley, Dennis D. Simpson, Benjamin P. Williams
  • Publication number: 20230340792
    Abstract: A work platform configured to be adjustable in both height and width, while enabling ease in transformation between an open, use configuration in a closed, storage configuration. The work platform having a platform and a pair of leg frames pivotably coupled to opposite ends of the platform, each of the pair of leg frames including a first leg and a second leg, each of which includes a first member pivotably coupled to the platform, and a second member shiftable relative to the first member, an intermediate rung operably coupled to respective distal ends of the first members and including a length extension lock mechanism configured to inhibit shifting of the second members relative to the first members, and a base rung member including a crossmember operably coupled to the respective distal ends of the second members.
    Type: Application
    Filed: June 30, 2023
    Publication date: October 26, 2023
    Applicant: Tricam Industries, Inc.
    Inventors: Joseph P. Foley, Dennis D. Simpson, Benjamin P. Williams
  • Patent number: 11629514
    Abstract: A work platform configured to be adjustable in both height and width, while enabling ease in transformation between an open, use configuration in a closed, storage configuration. The work platform having a platform and a pair of leg frames pivotably coupled to opposite ends of the platform, each of the pair of leg frames including a first leg and a second leg, each of which includes a first member pivotably coupled to the platform, and a second member shiftable relative to the first member, an intermediate rung operably coupled to respective distal ends of the first members and including a length extension lock mechanism configured to inhibit shifting of the second members relative to the first members, and a base rung member including a crossmember operably coupled to the respective distal ends of the second members.
    Type: Grant
    Filed: February 9, 2021
    Date of Patent: April 18, 2023
    Assignee: Tricam Industries, Inc.
    Inventors: Joseph P. Foley, Dennis D. Simpson, Benjamin P. Williams
  • Patent number: 11505994
    Abstract: An multi-position ladder is disclosed that includes an adjustable top cap that provides a tool or material tool tray when the ladder is in a stepladder position and provides a step when the ladder is in an extension ladder position is disclosed. The top cap generally comprises a rigid frame extending between the adjustable hinges of the multi-position ladder with a tool or utility tray and a step surface on opposing sides. The tool tray is parallel to the ladder rungs when the ladder is in a stepladder position, and the step surface provides a generally planar surface parallel the rungs when the ladder is in an extension position. The rigid frame of the top cap adds strength to the adjustment hinge and to the multi-position ladder. Embodiments allow for 12-inch hinge spacing, adding one foot reach in the extension position and six inch reach to the stepladder.
    Type: Grant
    Filed: October 16, 2019
    Date of Patent: November 22, 2022
    Assignee: Tricam Industries, Inc.
    Inventors: Joseph P. Foley, Benjamin P. Williams, Benjamin M. Wernberg, Dennis D. Simpson
  • Publication number: 20220364417
    Abstract: An multi-position ladder is disclosed that includes an adjustable top cap that provides a tool or material tool tray when the ladder is in a stepladder position and provides a step when the ladder is in an extension ladder position is disclosed. The top cap generally comprises a rigid frame extending between the adjustable hinges of the multi-position ladder with a tool or utility tray and a step surface on opposing sides. The tool tray is parallel to the ladder rungs when the ladder is in a stepladder position, and the step surface provides a generally planar surface parallel the rungs when the ladder is in an extension position. The rigid frame of the top cap adds strength to the adjustment hinge and to the multi-position ladder. Embodiments allow for 12-inch hinge spacing, adding one foot reach in the extension position and six inch reach to the stepladder.
    Type: Application
    Filed: July 28, 2022
    Publication date: November 17, 2022
    Inventors: Joseph P. Foley, Benjamin P. Williams, Benjamin M. Wernberg, Dennis D. Simpson
  • Publication number: 20220316274
    Abstract: A folding leg for a stepladder is disclosed. The folding leg allows the width of the stepladder base to be narrowed when in the stored orientation and widened while in an in-use orientation.
    Type: Application
    Filed: April 15, 2022
    Publication date: October 6, 2022
    Inventors: Benjamin M. Wernberg, Benjamin P. Williams, Joseph P. Foley, Dennis D. Simpson
  • Patent number: 11391089
    Abstract: A folding leg for a stepladder is disclosed. The folding leg allows the width of the stepladder base to be narrowed when in the stored orientation and widened while in an in-use orientation.
    Type: Grant
    Filed: October 23, 2019
    Date of Patent: July 19, 2022
    Assignee: Tricam Industries, Inc.
    Inventors: Benjamin M. Wernberg, Benjamin P. Williams, Joseph P. Foley, Dennis D. Simpson
  • Publication number: 20220194453
    Abstract: A dumping cart is disclosed. The cart allows for complete dumping while maintaining four wheels on the ground and can rotate the rear set of wheels to allow the bed of the cart to be completely turned over for emptying. Also disclosed is a method of attaching an article retaining bed to a cart.
    Type: Application
    Filed: March 10, 2022
    Publication date: June 23, 2022
    Inventors: Joseph P. Foley, Benjamin P. Williams, Benjamin M. Wernberg, Dennis D. Simpson
  • Publication number: 20220162910
    Abstract: A ladder including a first frame, a second frame and a platform assembly. The first frame includes one or more fixed steps. The platform assembly includes a first platform pivotably coupled to the first frame, a second platform pivotably coupled to the first frame, a first linkage coupled between the second frame and one of the first platform and the second platform, and a second linkage coupled to the first platform and the second platform. The ladder is movable between a closed position and an open position.
    Type: Application
    Filed: December 1, 2021
    Publication date: May 26, 2022
    Inventors: Jeff Skubic, Dennis D. Simpson, Ben Williams, Yongxue Lu
  • Patent number: 11299187
    Abstract: A dumping cart is disclosed. The cart allows for complete dumping while maintaining four wheels on the ground and can rotate the rear set of wheels to allow the bed of the cart to be completely turned over for emptying. Also disclosed is a method of attaching an article retaining bed to a cart.
    Type: Grant
    Filed: February 4, 2019
    Date of Patent: April 12, 2022
    Assignee: Tricam Industries, Inc.
    Inventors: Joseph P. Foley, Benjamin P. Williams, Benjamin M. Wernberg, Dennis D. Simpson
  • Patent number: 11220862
    Abstract: A ladder including a first frame, a second frame and a platform assembly. The first frame includes one or more fixed steps. The platform assembly includes a first platform pivotably coupled to the first frame, a second platform pivotably coupled to the first frame, a first linkage coupled between the second frame and one of the first platform and the second platform, and a second linkage coupled to the first platform and the second platform. The ladder is movable between a closed position and an open position.
    Type: Grant
    Filed: March 30, 2020
    Date of Patent: January 11, 2022
    Assignee: Tricam Industries, Inc.
    Inventors: Jeff Skubic, Dennis D. Simpson, Ben Williams, Yongxue Lu
  • Publication number: 20210246725
    Abstract: A tray for a stepladder is disclosed. The tray provides an area for work space or for storage of tools or materials in addition to that provided by the stepladder by itself. The tray is configured to be removably attachable to the top of the stepladder when in use or removably attached to the stepladder and preferably within the boundaries of the stepladder when not in use.
    Type: Application
    Filed: February 12, 2020
    Publication date: August 12, 2021
    Inventors: Benjamin M. Wernberg, Joseph P. Foley, Dennis D. Simpson, Benjamin P. Williams
  • Publication number: 20210164243
    Abstract: A work platform configured to be adjustable in both height and width, while enabling ease in transformation between an open, use configuration in a closed, storage configuration. The work platform having a platform and a pair of leg frames pivotably coupled to opposite ends of the platform, each of the pair of leg frames including a first leg and a second leg, each of which includes a first member pivotably coupled to the platform, and a second member shiftable relative to the first member, an intermediate rung operably coupled to respective distal ends of the first members and including a length extension lock mechanism configured to inhibit shifting of the second members relative to the first members, and a base rung member including a crossmember operably coupled to the respective distal ends of the second members.
    Type: Application
    Filed: February 9, 2021
    Publication date: June 3, 2021
    Inventors: Joseph P. Foley, Dennis D. Simpson, Benjamin P. Williams
  • Publication number: 20200247447
    Abstract: A dumping cart is disclosed. The cart allows for complete dumping while maintaining four wheels on the ground and can rotate the rear set of wheels to allow the bed of the cart to be completely turned over for emptying. Also disclosed is a method of attaching an article retaining bed to a cart.
    Type: Application
    Filed: February 4, 2019
    Publication date: August 6, 2020
    Inventors: Joseph P. Foley, Benjamin P. Williams, Benjamin M. Wernberg, Dennis D. Simpson
  • Publication number: 20200224492
    Abstract: A ladder including a first frame, a second frame and a platform assembly. The first frame includes one or more fixed steps. The platform assembly includes a first platform pivotably coupled to the first frame, a second platform pivotably coupled to the first frame, a first linkage coupled between the second frame and one of the first platform and the second platform, and a second linkage coupled to the first platform and the second platform. The ladder is movable between a closed position and an open position.
    Type: Application
    Filed: March 30, 2020
    Publication date: July 16, 2020
    Inventors: Jeff Skubic, Dennis D. Simpson, Ben Williams, Yongxue Lu
  • Patent number: 10648234
    Abstract: A ladder including a first frame, a second frame and a platform assembly. The first frame includes one or more fixed steps. The platform assembly includes a first platform pivotably coupled to the first frame, a second platform pivotably coupled to the first frame, a first linkage coupled between the second frame and one of the first platform and the second platform, and a second linkage coupled to the first platform and the second platform. The ladder is movable between a closed position and an open position.
    Type: Grant
    Filed: February 9, 2015
    Date of Patent: May 12, 2020
    Assignee: Tricam Industries, Inc.
    Inventors: Jeff Skubic, Dennis D. Simpson, Ben Williams, Yongxue Lu
  • Publication number: 20200131850
    Abstract: A folding leg for a stepladder is disclosed. The folding leg allows the width of the stepladder base to be narrowed when in the stored orientation and widened while in an in-use orientation.
    Type: Application
    Filed: October 23, 2019
    Publication date: April 30, 2020
    Inventors: Benjamin M. Wernberg, Benjamin P. Williams, Joseph P. Foley, Dennis D. Simpson
  • Publication number: 20200115961
    Abstract: An multi-position ladder is disclosed that includes an adjustable top cap that provides a tool or material tool tray when the ladder is in a stepladder position and provides a step when the ladder is in an extension ladder position is disclosed. The top cap generally comprises a rigid frame extending between the adjustable hinges of the multi-position ladder with a tool or utility tray and a step surface on opposing sides. The tool tray is parallel to the ladder rungs when the ladder is in a stepladder position, and the step surface provides a generally planar surface parallel the rungs when the ladder is in an extension position. The rigid frame of the top cap adds strength to the adjustment hinge and to the multi-position ladder. Embodiments allow for 12-inch hinge spacing, adding one foot reach in the extension position and six inch reach to the stepladder.
    Type: Application
    Filed: October 16, 2019
    Publication date: April 16, 2020
    Inventors: Joseph P. Foley, Benjamin P. Williams, Benjamin M. Wernberg, Dennis D. Simpson
  • Patent number: D897679
    Type: Grant
    Filed: March 13, 2019
    Date of Patent: October 6, 2020
    Assignee: Tricam Industries, Inc.
    Inventors: Joseph P. Foley, Benjamin P. Williams, Benjamin M. Wernberg, Dennis D. Simpson
  • Patent number: D897680
    Type: Grant
    Filed: March 13, 2019
    Date of Patent: October 6, 2020
    Assignee: Tricam Industries, Inc.
    Inventors: Joseph P. Foley, Benjamin P. Williams, Benjamin M. Wernberg, Dennis D. Simpson