Patents by Inventor Christopher D. Wallace

Christopher D. Wallace 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: 12440789
    Abstract: The present invention discloses a rectangular shaped filter and coalescer elements and a vessel that houses a plurality of such rectangular shaped elements. Greater filtration or separation efficiency is provided due to increased number and alignment of rectangular shaped filter elements in the vessel. The rectangular shaped filter elements are also easy to replace.
    Type: Grant
    Filed: June 3, 2022
    Date of Patent: October 14, 2025
    Assignee: FILTRATION TECHNOLOGY CORPORATION
    Inventors: James Harris, Tyler J. Johnson, Christopher D. Wallace
  • Patent number: 12440790
    Abstract: The present invention discloses a rectangular shaped filter and coalescer elements and a vessel that houses a plurality of such rectangular shaped elements. Greater filtration or separation efficiency is provided due to increased number and alignment of rectangular shaped filter elements in the vessel. The rectangular shaped filter elements are also easy to replace.
    Type: Grant
    Filed: June 3, 2022
    Date of Patent: October 14, 2025
    Assignee: FILTRATION TECHNOLOGY CORPORATION
    Inventors: James Harris, Tyler J. Johnson, Christopher D. Wallace
  • Publication number: 20240082761
    Abstract: An adaptor device for retrofitting in a filter housing is disclosed. The adaptor device allows the filter to be retrofitted with a plurality of filter elements, thereby improving its filtering efficiency.
    Type: Application
    Filed: September 22, 2023
    Publication date: March 14, 2024
    Inventors: Christopher D. WALLACE, James D HARRIS, Tyler J. JOHNSON
  • Publication number: 20220297043
    Abstract: The present invention discloses a rectangular shaped filter and coalescer elements and a vessel that houses a plurality of such rectangular shaped elements. Greater filtration or separation efficiency is provided due to increased number and alignment of rectangular shaped filter elements in the vessel. The rectangular shaped filter elements are also easy to replace.
    Type: Application
    Filed: June 3, 2022
    Publication date: September 22, 2022
    Inventors: James HARRIS, Tyler J. JOHNSON, Christopher D. WALLACE
  • Publication number: 20220288519
    Abstract: The present invention discloses a rectangular shaped filter and coalescer elements and a vessel that houses a plurality of such rectangular shaped elements. Greater filtration or separation efficiency is provided due to increased number and alignment of rectangular shaped filter elements in the vessel. The rectangular shaped filter elements are also easy to replace.
    Type: Application
    Filed: June 3, 2022
    Publication date: September 15, 2022
    Inventors: James HARRIS, Tyler J. JOHNSON, Christopher D. WALLACE
  • Patent number: 11364458
    Abstract: The present invention discloses a rectangular shaped filter and coalescer elements and a vessel that houses a plurality of such rectangular shaped elements. Greater filtration or separation efficiency is provided due to increased number and alignment of rectangular shaped filter elements in the vessel. The rectangular shaped filter elements are also easy to replace.
    Type: Grant
    Filed: February 21, 2018
    Date of Patent: June 21, 2022
    Assignee: Filtration Technology Corporation
    Inventors: James D. Harris, Tyler J. Johnson, Christopher D. Wallace
  • Publication number: 20210060465
    Abstract: An adaptor device for retrofitting in a pool filter housing is disclosed, where the pool filter housing has a conventional cylindrical concentric filter. The adaptor device allows the pool filter to be retrofitted with a plurality of filter elements, thereby improving its filtering efficiency.
    Type: Application
    Filed: November 13, 2020
    Publication date: March 4, 2021
    Inventors: Christopher D. WALLACE, James D. HARRIS, Tyler J. JOHNSON
  • Patent number: 10209038
    Abstract: A curtain of a flexible fabric is provided that is deployable to create a physical and visual barrier between an employee and a person perpetuating a crime such as a robbery or assault. The barrier can be in the form of a curtain that is electrified with an extreme high voltage, similar to a stun gun, and which prevents the assailant from approaching an employee or a restricted area. The curtain can be mounted in any area where it is beneficial to limit site and access of a trespasser or an assailant, such as between a cashier at a convenience store and the store's open retail area. The curtain can also be used to create temporary safe rooms or deployed within hallways of a restricted area to limit movement of an intruder.
    Type: Grant
    Filed: July 28, 2016
    Date of Patent: February 19, 2019
    Inventor: Christopher D. Wallace
  • Publication number: 20180236388
    Abstract: The present invention discloses a rectangular shaped filter and coalescer elements and a vessel that houses a plurality of such rectangular shaped elements. Greater filtration or separation efficiency is provided due to increased number and alignment of rectangular shaped filter elements in the vessel. The rectangular shaped filter elements are also easy to replace.
    Type: Application
    Filed: February 21, 2018
    Publication date: August 23, 2018
    Inventors: James D. HARRIS, Tyler J. JOHNSON, Christopher D. WALLACE
  • Publication number: 20170074622
    Abstract: A curtain of a flexible fabric is provided that is deployable to create a physical and visual barrier between an employee and a person perpetuating a crime such as a robbery or assault. The barrier can be in the form of a curtain that is electrified with an extreme high voltage, similar to a stun gun, and which prevents the assailant from approaching an employee or a restricted area. The curtain can be mounted in any area where it is beneficial to limit site and access of a trespasser or an assailant, such as between a cashier at a convenience store and the store's open retail area. The curtain can also be used to create temporary safe rooms or deployed within hallways of a restricted area to limit movement of an intruder.
    Type: Application
    Filed: July 28, 2016
    Publication date: March 16, 2017
    Inventor: CHRISTOPHER D. WALLACE
  • Patent number: 4453638
    Abstract: A hydraulic shock absorber comprising a piston and hollow piston rod slidable within a cylinder, and a plug assembly including a spool valve for metering fluid into the piston rod when an impact force forces the piston into the cylinder. A coil spring normally biases the valve spool to block fluid passage. An adjustment rod is threaded into the plug assembly to form a seat for the valve spring, and extends through the hollow piston rod. The adjustment rod may be rotated from externally of the piston rod for varying spring bias on the valve spool. A closed cell sponge is disposed within the plug-remote end of the piston rod.
    Type: Grant
    Filed: September 27, 1982
    Date of Patent: June 12, 1984
    Inventor: Christopher D. Wallace