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David A. Bural

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  • Edmond, OK, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Mobile vacuum system
    • Patent number 10,844,574
    • Issue date Nov 24, 2020
    • The Charles Machine Works, Inc.
    • David A. Bural
    • B08 - CLEANING
  • Information Patent Grant

    Apparatus for sealing a vacuum tank door
    • Patent number 10,207,863
    • Issue date Feb 19, 2019
    • The Charles Machine Works, Inc.
    • Cody L. Sewell
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Apparatus for sealing a vacuum tank door
    • Patent number 9,821,953
    • Issue date Nov 21, 2017
    • The Charles Machine Works, Inc.
    • Cody L. Sewell
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING

Patents Applicationslast 30 patents

  • Information Patent Application

    Mobile Vacuum System
    • Publication number 20180327999
    • Publication date Nov 15, 2018
    • The Charles Machine Works, Inc.
    • David A. Bural
    • B08 - CLEANING
  • Information Patent Application

    Apparatus For Sealing A Vacuum Tank Door
    • Publication number 20180072493
    • Publication date Mar 15, 2018
    • The Charles Machine Works, Inc.
    • Cody L. Sewell
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Application

    Apparatus For Sealing A Vacuum Tank Door
    • Publication number 20160362232
    • Publication date Dec 15, 2016
    • The Charles Machine Works, Inc.
    • Cody L. Sewell
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Application

    Apparatus For Sealing A Vacuum Tank Door
    • Publication number 20150291350
    • Publication date Oct 15, 2015
    • The Charles Machine Works, Inc.
    • Cody L. Sewell
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL