Patents by Inventor William Witherspoon

William Witherspoon 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: 11459748
    Abstract: A fire resistant tunnel expansion joint system for installation between substrates of a tunnel. The system includes a fire protection barrier applied at a predetermined thickness to the substrates and a fire resistant tunnel expansion joint. The tunnel expansion joint includes a core and a fire retardant infused into the core. The core is configured to define a profile to facilitate the compression of the tunnel expansion joint when installed between the substrates. The fire protection barrier and the fire resistant tunnel expansion joint are each capable of withstanding exposure to a temperature of at least about 540° C. or greater for about five minutes.
    Type: Grant
    Filed: December 9, 2019
    Date of Patent: October 4, 2022
    Assignee: EMSEAL JOINT SYSTEMS, LTD.
    Inventors: Lester Hensley, William Witherspoon
  • Publication number: 20220295676
    Abstract: An expansion joint sealing system comprises a core body having an EMP, EMI, RFI, electronic surveillance and/or EMR shielding/barrier material introduced in the core body as at least one of a component or layer, disposed on the core body as a coating or wrapping, or disposed beneath the core body. The core body with the shielding/barrier material is configured to expand and contract when compressed between substrates forming an expansion joint to accommodate movement of the substrates and maintain a seal of the expansion joint.
    Type: Application
    Filed: August 17, 2020
    Publication date: September 15, 2022
    Applicant: EMSEAL JOINT SYSTEMS LTD.
    Inventors: William WITHERSPOON, Lester HENSLEY
  • Patent number: 11180995
    Abstract: A fire and/or water resistant expansion joint system for installation between substrates of a tunnel. The system includes a fire resistant coating applied at a predetermined thickness to achieve a substantially uniform layer on the substrates and a fire and water resistant expansion joint. The expansion joint includes a core having an edge, wherein the substantially uniform layer of the coating extends along the substrates of the tunnel to the edge of the core, and a fire retardant infused into the core. The core is configured to facilitate the compression of the expansion joint system when installed between the substrates. The coating and the fire and water resistant expansion joint are each capable of withstanding exposure to a temperature of at least about 540° C. or greater for about five minutes.
    Type: Grant
    Filed: May 23, 2019
    Date of Patent: November 23, 2021
    Assignee: Emseal Joint Systems, Ltd.
    Inventors: Lester Hensley, William Witherspoon
  • Patent number: 10794056
    Abstract: A fire and/or water resistant expansion joint system for installation into a building joint in vertical and horizontal configurations is designed such that it can be used for either an inside or outside corner. The system comprises a core having a fire retardant therein. A layer of a water resistant material is disposed on the core to facilitate the compression of the expansion joint system when installed between substrates. The system can be delivered to a job site in a pre-compressed state ready for installation into the building joint.
    Type: Grant
    Filed: January 9, 2019
    Date of Patent: October 6, 2020
    Assignee: EMSEAL JOINT SYSTEMS LTD.
    Inventors: Lester Hensley, William Witherspoon
  • Publication number: 20200141114
    Abstract: A fire resistant tunnel expansion joint system for installation between substrates of a tunnel. The system includes a fire protection barrier applied at a predetermined thickness to the substrates and a fire resistant tunnel expansion joint. The tunnel expansion joint includes a core and a fire retardant infused into the core. The core is configured to define a profile to facilitate the compression of the tunnel expansion joint when installed between the substrates. The fire protection barrier and the fire resistant tunnel expansion joint are each capable of withstanding exposure to a temperature of at least about 540° C. or greater for about five minutes.
    Type: Application
    Filed: December 9, 2019
    Publication date: May 7, 2020
    Applicant: Emseal Joint Systems Ltd.
    Inventors: Lester Hensley, William Witherspoon
  • Patent number: 10544582
    Abstract: An expansion joint system includes: a core; and water resistant coating on the core. The core and the water resistant coating forming an elongated section, the elongated section configured to be oriented between substrates. The expansion joint system further includes a termination section located at one end of the elongated section and comprising a flared end forming an angle with the elongated section and configured to direct fluid and/or particles and/or solvents away from the expansion joint system.
    Type: Grant
    Filed: February 20, 2018
    Date of Patent: January 28, 2020
    Assignee: Emseal Joint Systems Ltd.
    Inventors: Lester Hensley, William Witherspoon
  • Patent number: 10519651
    Abstract: A fire resistant tunnel expansion joint system for installation between substrates of a tunnel. The system includes a fire protection barrier applied at a predetermined thickness to the substrates and a fire resistant tunnel expansion joint. The tunnel expansion joint includes a core and a fire retardant infused into the core. The core is configured to define a profile to facilitate the compression of the tunnel expansion joint when installed between the substrates. The fire protection barrier and the fire resistant tunnel expansion joint are each capable of withstanding exposure to a temperature of at least about 540° C. or greater for about five minutes.
    Type: Grant
    Filed: April 24, 2017
    Date of Patent: December 31, 2019
    Assignee: Emseal Joint Systems Ltd.
    Inventors: Lester Hensley, William Witherspoon
  • Publication number: 20190323347
    Abstract: A fire and/or water resistant expansion joint system for installation between substrates of a tunnel. The system includes a fire resistant coating applied at a predetermined thickness to achieve a substantially uniform layer on the substrates and a fire and water resistant expansion joint. The expansion joint includes a core having an edge, wherein the substantially uniform layer of the coating extends along the substrates of the tunnel to the edge of the core, and a fire retardant infused into the core. The core is configured to facilitate the compression of the expansion joint system when installed between the substrates. The coating and the fire and water resistant expansion joint are each capable of withstanding exposure to a temperature of at least about 540° C. or greater for about five minutes.
    Type: Application
    Filed: May 23, 2019
    Publication date: October 24, 2019
    Applicant: EMSEAL JOINT SYSTEMS, LTD.
    Inventors: Lester Hensley, William Witherspoon
  • Publication number: 20190211546
    Abstract: A fire and/or water resistant expansion joint system for installation into a building joint in vertical and horizontal configurations is designed such that it can be used for either an inside or outside corner. The system comprises a core having a fire retardant therein. A layer of a water resistant material is disposed on the core to facilitate the compression of the expansion joint system when installed between substrates. The system can be delivered to a job site in a pre-compressed state ready for installation into the building joint.
    Type: Application
    Filed: January 9, 2019
    Publication date: July 11, 2019
    Applicant: EMSEAL JOINT SYSTEMS LTD.
    Inventors: Lester Hensley, William Witherspoon
  • Patent number: 10316661
    Abstract: A fire and/or water resistant expansion joint system for installation between substrates of a tunnel. The system includes a fire resistant coating applied at a predetermined thickness to achieve a substantially uniform layer on the substrates and a fire and water resistant expansion joint. The expansion joint includes a core having an edge, wherein the substantially uniform layer of the coating extends along the substrates of the tunnel to the edge of the core, and a fire retardant infused into the core. The core is configured to facilitate the compression of the expansion joint system when installed between the substrates. The coating and the fire and water resistant expansion joint are each capable of withstanding exposure to a temperature of at least about 540° C. or greater for about five minutes.
    Type: Grant
    Filed: October 29, 2015
    Date of Patent: June 11, 2019
    Assignee: EMSEAL JOINT SYSTEMS, LTD.
    Inventors: Lester Hensley, William Witherspoon
  • Patent number: 10179993
    Abstract: A fire and/or water resistant expansion joint system for installation into a building joint in vertical and horizontal configurations is designed such that it can be used for either an inside or outside corner. The system comprises a core having a fire retardant therein. A layer of a water resistant material is disposed on the core to facilitate the compression of the expansion joint system when installed between substrates. The system can be delivered to a job site in a pre-compressed state ready for installation into the building joint.
    Type: Grant
    Filed: May 1, 2017
    Date of Patent: January 15, 2019
    Assignee: EMSEAL JOINT SYSTEMS, LTD.
    Inventors: Lester Hensley, William Witherspoon
  • Publication number: 20180202148
    Abstract: An expansion joint system includes: a core; and water resistant coating on the core. The core and the water resistant coating forming an elongated section, the elongated section configured to be oriented between substrates. The expansion joint system further includes a termination section located at one end of the elongated section and comprising a flared end forming an angle with the elongated section and configured to direct fluid and/or particles and/or solvents away from the expansion joint system.
    Type: Application
    Filed: February 20, 2018
    Publication date: July 19, 2018
    Applicant: Emseal Joint Systems Ltd.
    Inventors: Lester Hensley, William Witherspoon
  • Patent number: 9963872
    Abstract: An expansion joint system includes: a core; and a layer of an elastomer disposed on the core. The core and the layer of elastomer disposed thereon form an elongated section, the elongated section configured to be oriented vertically between substantially coplanar substrates. The expansion joint system further includes a termination section located at one end of the elongated section and comprising a flared end forming an angle with the elongated section and configured to direct fluid and/or particles and/or solvents away from the expansion joint system.
    Type: Grant
    Filed: June 4, 2015
    Date of Patent: May 8, 2018
    Assignee: EMSEAL JOINT SYSTEMS LTD
    Inventors: Lester Hensley, William Witherspoon
  • Publication number: 20170298618
    Abstract: A fire and/or water resistant expansion joint system for installation into a building joint in vertical and horizontal configurations is designed such that it can be used for either an inside or outside corner. The system comprises a core having a fire retardant therein. A layer of a water resistant material is disposed on the core to facilitate the compression of the expansion joint system when installed between substrates. The system can be delivered to a job site in a pre-compressed state ready for installation into the building joint.
    Type: Application
    Filed: May 1, 2017
    Publication date: October 19, 2017
    Applicant: EMSEAL JOINT SYSTEMS LTD.
    Inventors: Lester Hensley, William Witherspoon
  • Publication number: 20170284083
    Abstract: Disclosed is a water resistant joint sealing system comprising a coiled, coated precompressed core material. In one embodiment, the joint sealing system includes a fire retardant material put into the core material. In one embodiment, the fire retardant material forms a layer in, or between portions of material of, the core material.
    Type: Application
    Filed: April 21, 2017
    Publication date: October 5, 2017
    Applicant: Emseal Joint Systems Ltd.
    Inventors: Lester Hensley, William Witherspoon
  • Publication number: 20170226733
    Abstract: A fire resistant tunnel expansion joint system for installation between substrates of a tunnel. The system includes a fire protection barrier applied at a predetermined thickness to the substrates and a fire resistant tunnel expansion joint. The tunnel expansion joint includes a core and a fire retardant infused into the core. The core is configured to define a profile to facilitate the compression of the tunnel expansion joint when installed between the substrates. The fire protection barrier and the fire resistant tunnel expansion joint are each capable of withstanding exposure to a temperature of at least about 540° C. or greater for about five minutes.
    Type: Application
    Filed: April 24, 2017
    Publication date: August 10, 2017
    Applicant: Emseal Joint Systems Ltd.
    Inventors: Lester Hensley, William Witherspoon
  • Patent number: 9677266
    Abstract: A system configured to anchor a cover plate over an interface formed between substantially coplanar substrates includes a sleeve capable of being anchored in a first substrate; a spring located in the sleeve; a post located in communication with the spring; and a fastener secured onto the post. A head of the post is located in the sleeve, and an end of the post opposite the head of the post extends out of the sleeve to receive the fastener. The fastener is secured onto the post over the cover plate located on the first substrate such that the cover plate extends over the interface formed between the first and second substrates when they are positioned to be substantially coplanar.
    Type: Grant
    Filed: October 10, 2014
    Date of Patent: June 13, 2017
    Assignee: EMSEAL JOINT SYSTEMS, LTD.
    Inventors: Lester Hensley, William Witherspoon
  • Patent number: 9631362
    Abstract: A fire and/or water resistant expansion joint system for installation between substrates of a tunnel. The system includes a coating applied at a predetermined thickness to the substrates and a fire and water resistant expansion joint. The expansion joint includes a core and a fire retardant infused into the core. The core is configured to define a profile to facilitate the compression of the expansion joint system when installed between the substrates. The coating and the fire and water resistant expansion joint are each capable of withstanding exposure to a temperature of at least about 540° C. or greater for about five minutes.
    Type: Grant
    Filed: March 28, 2014
    Date of Patent: April 25, 2017
    Assignee: Emseal Joint Systems Ltd.
    Inventors: Lester Hensley, William Witherspoon
  • Publication number: 20160047242
    Abstract: A fire and/or water resistant expansion joint system for installation between substrates of a tunnel. The system includes a fire resistant coating applied at a predetermined thickness to achieve a substantially uniform layer on the substrates and a fire and water resistant expansion joint. The expansion joint includes a core having an edge, wherein the substantially uniform layer of the coating extends along the substrates of the tunnel to the edge of the core, and a fire retardant infused into the core. The core is configured to facilitate the compression of the expansion joint system when installed between the substrates. The coating and the fire and water resistant expansion joint are each capable of withstanding exposure to a temperature of at least about 540° C. or greater for about five minutes.
    Type: Application
    Filed: October 29, 2015
    Publication date: February 18, 2016
    Applicant: EMSEAL JOINT SYSTEMS, LTD.
    Inventors: Lester Hensley, William Witherspoon
  • Publication number: 20150275508
    Abstract: An expansion joint system includes: a core; and a layer of an elastomer disposed on the core. The core and the layer of elastomer disposed thereon form an elongated section, the elongated section configured to be oriented vertically between substantially coplanar substrates. The expansion joint system further includes a termination section located at one end of the elongated section and comprising a flared end forming an angle with the elongated section and configured to direct fluid and/or particles and/or solvents away from the expansion joint system.
    Type: Application
    Filed: June 4, 2015
    Publication date: October 1, 2015
    Applicant: Emseal Joint Systems Ltd.
    Inventors: Lester Hensley, William Witherspoon