Patents by Inventor David C. Woodcock

David C. Woodcock 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: 11821421
    Abstract: Seal systems are provided that use a variety of seals to seal fluid processing apparatuses, such as gear pumps, to facilitate the prevention of a leakage of fluids from the respective fluid processing apparatuses. Fluid apparatuses that use such seal systems are also provided. Methods of uses, making, and assembly of seal systems are further described herein.
    Type: Grant
    Filed: June 11, 2020
    Date of Patent: November 21, 2023
    Assignee: PSI-POLYMER SYSTEMS, INC.
    Inventors: David C. Woodcock, Joshua A. Bibey
  • Publication number: 20220355531
    Abstract: Filtration apparatuses and screen changer devices for filtering polymeric material as well as spacer plates, and face plates for the screen changer devices and related methods are shown and described herein.
    Type: Application
    Filed: February 25, 2022
    Publication date: November 10, 2022
    Inventors: James E. Rosamond, David C. Woodcock
  • Patent number: 11260570
    Abstract: Filtration apparatuses and screen changer devices for filtering polymeric material as well as spacer plates, and face plates for the screen changer devices and related methods are shown and described herein.
    Type: Grant
    Filed: May 7, 2019
    Date of Patent: March 1, 2022
    Assignee: PSI-Polymer Systems, Inc.
    Inventors: James E. Rosamond, III, David C. Woodcock
  • Publication number: 20200392957
    Abstract: Seal systems are provided that use a variety of seals to seal fluid processing apparatuses, such as gear pumps, to facilitate the prevention of a leakage of fluids from the respective fluid processing apparatuses. Fluid apparatuses that use such seal systems are also provided. Methods of uses, making, and assembly of seal systems are further described herein.
    Type: Application
    Filed: June 11, 2020
    Publication date: December 17, 2020
    Applicant: PSI-Polymer Systems, Inc.
    Inventors: David C. Woodcock, Joshua A. Bibey
  • Patent number: 10828820
    Abstract: Extrusion die systems, die changers and related methods are provided herein. The die changer for changing of dies in and out of an extrusion line can include a housing having a main supply feed bore therethrough for directing a flowable material and a channel oriented transversely to the main supply feed bore. The die changer can include a slide plate movable through the channel and transverse to a direction of flow through the bore. The slide plate can include an elongate body having a first section and a second section. A first bore can extend through the first section of the elongate body of the slide plate and a second bore can extend through the second section of the elongate body of the slide plate.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: November 10, 2020
    Assignee: PSI-Polymer Systems, Inc.
    Inventors: Glenn Woodcock, David C. Woodcock, James D. Baldwin
  • Publication number: 20190337215
    Abstract: Filtration apparatuses and screen changer devices for filtering polymeric material as well as spacer plates, and face plates for the screen changer devices and related methods are shown and described herein.
    Type: Application
    Filed: May 7, 2019
    Publication date: November 7, 2019
    Applicant: PSI-Polymer Systems, Inc
    Inventors: James E. Rosamond, III, David C. Woodcock, III
  • Publication number: 20180345561
    Abstract: Extrusion die systems, die changers and related methods are provided herein. The die changer for changing of dies in and out of an extrusion line can include a housing having a main supply feed bore therethrough for directing, a flowable material and a channel oriented transversely to the main supply feed bore. The die changer can include a slide plate movable through the channel and transverse to a direction of flow through the bore. The slide plate can include an elongate body having a first section and a second section. A first bore can extend through the first section of the elongate body of the slide plate and a second bore can extend through the second section of the elongate body of the slide plate.
    Type: Application
    Filed: November 21, 2017
    Publication date: December 6, 2018
    Applicant: PSI-Polymer Systems, Inc.
    Inventors: Glenn Woodcock, David C. Woodcock, James D. Baldwin
  • Patent number: 9309974
    Abstract: Seals for use in machinery and apparatuses to prevent leakage of fluids and methods, apparatuses and systems related thereto are provided. The seals can be used in apparatuses that use and/or process fluids having low to medium viscosity at low or high pressures while still preventing leakage of the fluids from the apparatus during processing.
    Type: Grant
    Filed: February 25, 2013
    Date of Patent: April 12, 2016
    Assignee: PSI-POLYMER SYSTEMS, INC.
    Inventors: David C. Woodcock, Joshua A. Bibey
  • Publication number: 20110017681
    Abstract: Filtration apparatuses for use in polymer processing systems and methods of using the same are provided. The filtration apparatuses can include a housing with one or more supply channels and discharge channels. The filtration apparatus can also include one or more screen-bearing pistons with filter screen cavities therein for receiving filter screens that filter material flowing from the supply channels through the filter screens and out through the discharge channels. Back flushing channels can be formed by alignment of mating channels in the pistons and the housing. The filtration apparatuses can also include a controller that can communicate with a hydraulic power unit to that can be assisted by a rapid accelerator device to control the filtration apparatus. The filtration apparatuses can include filter screen retention plates.
    Type: Application
    Filed: May 26, 2010
    Publication date: January 27, 2011
    Inventors: Joshua A. Bibey, David C. Woodcock, Brian E. Woodcock, Michael L. Reid