Patents by Inventor Keith Chapman

Keith Chapman 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: 11377803
    Abstract: A method of manufacturing an orthotropic deck panel includes cambering a deck plate of the orthotropic deck panel to a first degree of camber in a longitudinal direction, cambering the deck plate to a second degree of camber in a transverse direction, and attaching a rib member of the orthotropic deck panel to the deck plate by welding the rib member to the deck plate. The first degree of camber corresponds to a shape of a surface of which the orthotropic deck panel is a part, and the second degree of camber is configured such that the deck plate is flatter in the transverse direction after the rib member is welded to the deck plate than when the deck plate is being cambered in the transverse direction.
    Type: Grant
    Filed: March 11, 2020
    Date of Patent: July 5, 2022
    Assignee: Vigor Industrial LLC
    Inventors: Terrance J. Aarnio, Keith Chapman, Bill Crittendon, Thomas J. Hickman, Daniel Miller, Christopher Palmer, Perry Royland, Vern Taute, David Ward, Oded Maman
  • Publication number: 20200301898
    Abstract: Methods and systems are disclosed for accelerating Big Data operations by utilizing subgraph templates for a hardware accelerator of a computational storage device. In one example, a computer-implemented method comprises performing a query with a dataflow compiler, performing a stage acceleration analyzer function including executing a matching algorithm to determine similarities between sub-graphs of an application program and unique templates from an available library of templates; and selecting at least one template that at least partially matches the sub-graphs with the at least one template being associated with a linear set of operators to be executed sequentially within a stage of the Big Data operations.
    Type: Application
    Filed: June 10, 2020
    Publication date: September 24, 2020
    Applicant: BigStream Solutions, Inc.
    Inventors: Balavinayagam Samynathan, Keith Chapman, Mehdi Nik, Behnam Robatmili, Shahrzad Mirkhani, Maysam Lavasani, John David Davis, Danesh Tavana, Weiwei Chen
  • Publication number: 20200208360
    Abstract: A method of manufacturing an orthotropic deck panel includes cambering a deck plate of the orthotropic deck panel to a first degree of camber in a longitudinal direction, cambering the deck plate to a second degree of camber in a transverse direction, and attaching a rib member of the orthotropic deck panel to the deck plate by welding the rib member to the deck plate. The first degree of camber corresponds to a shape of a surface of which the orthotropic deck panel is a part, and the second degree of camber is configured such that the deck plate is flatter in the transverse direction after the rib member is welded to the deck plate than when the deck plate is being cambered in the transverse direction.
    Type: Application
    Filed: March 11, 2020
    Publication date: July 2, 2020
    Applicant: Vigor Industrial LLC
    Inventors: Terrance J. Aarnio, Keith Chapman, Bill Crittendon, Thomas J. Hickman, Daniel Miller, Christopher Palmer, Perry Royland, Vern Taute, David Ward, Oded Maman
  • Patent number: 10590615
    Abstract: A method of manufacturing an orthotropic deck panel includes securing a rib member in a first fixture, beveling an edge surface of the rib member while the rib member is secured in the first fixture, and releasing the rib member from the first fixture, attaching the rib member to a deck plate, and attaching a floor beam to the rib member and the deck plate.
    Type: Grant
    Filed: July 19, 2016
    Date of Patent: March 17, 2020
    Assignee: Vigor Industrial LLC
    Inventors: Terrance J. Aarnio, Keith Chapman, Bill Crittendon, Thomas J. Hickman, Daniel Miller, Christopher Palmer, Perry Royland, Vern Taute, David Ward, Oded Maman
  • Publication number: 20170370054
    Abstract: A method of manufacturing an orthotropic deck panel includes securing a rib member in a first fixture, beveling an edge surface of the rib member while the rib member is secured in the first fixture, and releasing the rib member from the first fixture, attaching the rib member to a deck plate, and attaching a floor beam to the rib member and the deck plate.
    Type: Application
    Filed: July 19, 2016
    Publication date: December 28, 2017
    Applicant: Vigor Industrial LLC
    Inventors: Terrance J. Aarnio, Keith Chapman, Bill Crittendon, Thomas J. Hickman, Daniel Miller, Christopher Palmer, Perry Royland, Vern Taute, David Ward, Oded Maman
  • Publication number: 20070173634
    Abstract: The present invention relates generally to methods for one-step purification of organic polymers using tangential flow filtration. In one embodiment, the present invention relates to methods for size fractionation of heterogeneous organic polymers, such as poly(ethylene glycol) derivatives, using tangential flow filtration. The present invention also relates to purification of low molecular weight monofunctional organic polymer derivatives produced by procedures in which high molecular weight bifunctional poly(ethylene glycol) impurities are removed. The present invention further relates to purification of high molecular weight branched polymer products from low molecular weight starting materials.
    Type: Application
    Filed: January 24, 2006
    Publication date: July 26, 2007
    Inventors: Nils Olsson, Keith Chapman, Jerod Wooldridge, Robert Winslow
  • Publication number: 20060159291
    Abstract: A portable multi-functional audio sound system has an enclosure and control panel with an optional display on a front portion of the enclosure. The control panel provides for selection among menu options which are presented on the display. An audio input is coupled for receiving a live audio signal. An electronic circuit receives user commands from the control panel and displays configuration information on the display. The electronic circuit has an amplifier for amplifying the live audio signal, and a synthesizer for generating programmable audio signal in response to a MIDI data stream. The MIDI data stream is routed to the digital signal processor or to the synthesizer. A digital signal processor controls the menu options on the display. A speaker is mounted within the enclosure and coupled for receiving a combined signal of the live audio signal and the programmable audio signal.
    Type: Application
    Filed: January 14, 2005
    Publication date: July 20, 2006
    Inventors: Richard Fliegler, Charles Adams, Keith Chapman, Dale Curtis, Shane Nicholas, Shawn Greene
  • Publication number: 20060049561
    Abstract: A hydraulic suspension unit for the front axle suspension of a tractor, comprises a hydraulic jack having a cylinder body, a piston arranged within the cylinder body to define two variable volume working chambers, a piston rod connected to the piston and sealingly guided in the cylinder body, and anchoring blocks on the ends of the cylinder body and of the piston rod for connecting the hydraulic jack to components of the suspension that are movable relative to one another. The suspension unit further comprising a valve body having valves connected to regulate the flow of hydraulic fluid to and from the working chambers of the jack. In the invention, the valve body is directly mounted on the anchoring block of the cylinder body on its side remote from the anchoring block of the piston rod.
    Type: Application
    Filed: August 26, 2005
    Publication date: March 9, 2006
    Inventor: Keith Chapman