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Mark D. Randa

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  • Summit, WI, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Lead pipe spudding prior to extraction or remediation
    • Patent number 12,092,257
    • Issue date Sep 17, 2024
    • The Charles Machine Works, Inc.
    • Robert F. Crane
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Pipe slitter
    • Patent number D1018244
    • Issue date Mar 19, 2024
    • The Charles Machine Works, Inc.
    • Walter George Thompson
    • D08 - Tools and hardware
  • Information Patent Grant

    System for applying torsional force to a buried pipe to facilitate...
    • Patent number 11,913,570
    • Issue date Feb 27, 2024
    • The Charles Machine Works, Inc.
    • Steven W. Wentworth
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Piercing tool aiming device
    • Patent number 11,674,354
    • Issue date Jun 13, 2023
    • The Charles Machine Works, Inc.
    • Larry G. Morse
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Pipe slitting machine with rope storage reel
    • Patent number 11,619,336
    • Issue date Apr 4, 2023
    • The Charles Machine Works, Inc.
    • Mark D. Randa
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Pipe extraction assisted by pre-stressed strand
    • Patent number 11,112,033
    • Issue date Sep 7, 2021
    • The Charles Machine Works, Inc.
    • Robert F. Crane
    • B66 - HOISTING LIFTING HAULING
  • Information Patent Grant

    Lead pipe spudding prior to extraction or remediation
    • Patent number 10,969,053
    • Issue date Apr 6, 2021
    • The Charles Machine Works, Inc.
    • Robert F. Crane
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Reversible pneumatic pipe ramming tool
    • Patent number 10,927,602
    • Issue date Feb 23, 2021
    • The Charles Machine Works, Inc.
    • Steven W. Wentworth
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Extraction of ductile pipe
    • Patent number 10,883,628
    • Issue date Jan 5, 2021
    • The Charles Machine Works, Inc.
    • Steven W. Wentworth
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Extraction of ductile pipe
    • Patent number 10,584,807
    • Issue date Mar 10, 2020
    • The Charles Machine Works, Inc.
    • Steven W. Wentworth
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Latch assembly for use with an inversion drum
    • Patent number 10,550,989
    • Issue date Feb 4, 2020
    • Earth Tool Company LLC
    • Craig Lawrence Noggle
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Split ring ram adapter with cam adjustment
    • Patent number 10,415,722
    • Issue date Sep 17, 2019
    • Earth Tool Company LLC
    • Steven W. Wentworth
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Powered slip actuation
    • Patent number 10,161,201
    • Issue date Dec 25, 2018
    • Earth Tool Company LLC
    • Steven W. Wentworth
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Gut hook bladed pipe slitter
    • Patent number D816456
    • Issue date May 1, 2018
    • Earth Tool Company LLC
    • Robert F. Crane
    • D08 - Tools and hardware
  • Information Patent Grant

    Pipe slitter
    • Patent number 9,566,653
    • Issue date Feb 14, 2017
    • Earth Tool Company LLC
    • Mark D. Randa
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Pipe slitting apparatus
    • Patent number 9,512,951
    • Issue date Dec 6, 2016
    • Earth Tool Company LLC
    • Mark D. Randa
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Beacon assembly
    • Patent number 8,955,586
    • Issue date Feb 17, 2015
    • Earth Tool Company, L.L.C.
    • Mark D. Randa
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Pneumatic impact tool
    • Patent number 8,955,613
    • Issue date Feb 17, 2015
    • Earth Tool Company, L.L.C.
    • Mark D. Randa
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Joint with check valve for a boring apparatus
    • Patent number 8,875,811
    • Issue date Nov 4, 2014
    • Earth Tool Company, L.L.C.
    • Mark D. Randa
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Pneumatic impact piercing tool
    • Patent number 8,181,714
    • Issue date May 22, 2012
    • Earth Tool Company, L.L.C.
    • Mark D. Randa
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Method and apparatus for replacement of underground pipe
    • Patent number 7,255,516
    • Issue date Aug 14, 2007
    • Earth Tool Company, L.L.C.
    • Steven W. Wentworth
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Method and apparatus for on-grade boring
    • Patent number 7,086,808
    • Issue date Aug 8, 2006
    • Earth Tool Company, L.L.C.
    • Steven W. Wentworth
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Pneumatic ground piercing tool
    • Patent number 7,066,279
    • Issue date Jun 27, 2006
    • Earth Tool Company, L.L.C.
    • Mark D. Randa
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Method and apparatus for replacement of underground pipe
    • Patent number 7,055,621
    • Issue date Jun 6, 2006
    • Earth Tool Company, L.L.C.
    • Steven W. Wentworth
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Pneumatic impact piercing tool
    • Patent number 7,028,785
    • Issue date Apr 18, 2006
    • Earth Tool Company, L.L.C.
    • Mark D. Randa
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Method and system for operating a reversible pneumatic ground pierc...
    • Patent number 6,953,095
    • Issue date Oct 11, 2005
    • Earth Tool Company, L.L.C.
    • Mark D. Randa
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Pneumatic impact piercing tool
    • Patent number 6,923,270
    • Issue date Aug 2, 2005
    • Earth Tool Company, L.L.C.
    • Mark D. Randa
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Method and apparatus for replacement of underground pipe
    • Patent number 6,913,091
    • Issue date Jul 5, 2005
    • Earth Tool Company, L.L.C.
    • Steven W. Wentworth
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Drill string joint
    • Patent number 6,860,514
    • Issue date Mar 1, 2005
    • EarthjTool Company, L.L.C.
    • Steven W. Wentworth
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Method and apparatus for replacement of underground pipe
    • Patent number 6,761,507
    • Issue date Jul 13, 2004
    • Earth Tool Company, L.L.C.
    • Steven W. Wentworth
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

  • Information Patent Application

    LATCH ASSEMBLY FOR USE WITH AN INVERSION DRUM
    • Publication number 20240142036
    • Publication date May 2, 2024
    • The Charles Machine Works, Inc.
    • Craig Lawrence Noggle
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Application

    JAW ENGAGEMENT ASSIST SYSTEM
    • Publication number 20230339077
    • Publication date Oct 26, 2023
    • The Charles Machine Works, Inc.
    • Steven W. Wentworth
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    PIPE EXTRACTION ASSISTED BY PRE-STRESSED STRAND
    • Publication number 20220341508
    • Publication date Oct 27, 2022
    • The Charles Machine Works, Inc.
    • Robert F. Crane
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    SYSTEM AND METHOD FOR EXTRACTING A BURIED PIPE
    • Publication number 20220325825
    • Publication date Oct 13, 2022
    • The Charles Machine Works, Inc.
    • Steven W. Wentworth
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    PIERCING TOOL AIMING DEVICE
    • Publication number 20220136335
    • Publication date May 5, 2022
    • The Charles Machine Works, Inc.
    • Larry G. Morse
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    Pipe Extraction Assisted By Pre-Stressed Strand
    • Publication number 20210364102
    • Publication date Nov 25, 2021
    • The Charles Machine Works, Inc.
    • Robert F. Crane
    • B66 - HOISTING LIFTING HAULING
  • Information Patent Application

    Lead Pipe Spudding Prior To Extraction Or Remediation
    • Publication number 20210190251
    • Publication date Jun 24, 2021
    • The Charles Machine Works, Inc.
    • Robert F. Crane
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Pipe Slitting Machine With Rope Storage Reel
    • Publication number 20210107074
    • Publication date Apr 15, 2021
    • The Charles Machine Works, Inc.
    • Mark D. Randa
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    Pipe Extraction Assisted By Pre-Stressed Strand
    • Publication number 20200378529
    • Publication date Dec 3, 2020
    • The Charles Machine Works, Inc.
    • Robert F. Crane
    • B66 - HOISTING LIFTING HAULING
  • Information Patent Application

    Extraction Of Ductile Pipe
    • Publication number 20200158261
    • Publication date May 21, 2020
    • The Charles Machine Works, Inc.
    • Steven W. Wentworth
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Latch Assembly For Use With An Inversion Drum
    • Publication number 20200149673
    • Publication date May 14, 2020
    • The Charles Machine Works, Inc.
    • Craig Lawrence Noggle
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Application

    System And Method For Extracting A Buried Pipe
    • Publication number 20200056725
    • Publication date Feb 20, 2020
    • Earth Tool Company LLC
    • Steven W. Wentworth
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Reversible Pneumatic Pipe Ramming Tool
    • Publication number 20190136629
    • Publication date May 9, 2019
    • Earth Tool Company LLC
    • Steven W. Wentworth
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    Lead Pipe Spudding Prior To Extraction Or Remediation
    • Publication number 20190078720
    • Publication date Mar 14, 2019
    • Earth Tool Company LLC
    • Robert F. Crane
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Latch Assembly For Use With An Inversion Drum
    • Publication number 20190063662
    • Publication date Feb 28, 2019
    • Earth Tool Company LLC
    • Craig Lawrence Noggle
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Application

    Extraction Of Ductile Pipe
    • Publication number 20190049040
    • Publication date Feb 14, 2019
    • Earth Tool Company LLC
    • Steven W. Wentworth
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Split Ring Ram Adapter With Cam Adjustment
    • Publication number 20190049042
    • Publication date Feb 14, 2019
    • Earth Tool Company LLC
    • Steven W. Wentworth
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Steerable Downhole Hammer Bit
    • Publication number 20180155985
    • Publication date Jun 7, 2018
    • Earth Tool Company LLC
    • Steven W. Wentworth
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    Powered Slip Actuation
    • Publication number 20170234084
    • Publication date Aug 17, 2017
    • Earth Tool Company LLC
    • Steven W. Wentworth
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    ECCENTRIC CONES FOR ROCK CUTTING
    • Publication number 20160340981
    • Publication date Nov 24, 2016
    • Earth Tool Company LLC
    • Steven W. Wentworth
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    Gut Hook Bladed Pipe Slitter
    • Publication number 20160319979
    • Publication date Nov 3, 2016
    • Earth Tool Company LLC
    • Robert F. Crane
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Powered Slip Actuation
    • Publication number 20160161023
    • Publication date Jun 9, 2016
    • Earth Tool Company LLC
    • Steven W. Wentworth
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    Pipe Slitting Apparatus
    • Publication number 20150198279
    • Publication date Jul 16, 2015
    • EARTH TOOL COMPANY LLC
    • Mark D. Randa
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Pipe Slitter
    • Publication number 20150098765
    • Publication date Apr 9, 2015
    • EARTH TOOL COMPANY LLC
    • Mark D. Randa
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Tricone Bit Construction
    • Publication number 20150014060
    • Publication date Jan 15, 2015
    • EARTH TOOL COMPANY LLC
    • Steven W. Wentworth
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    Powered Slip Actuation
    • Publication number 20140294512
    • Publication date Oct 2, 2014
    • EARTH TOOL COMPANY LLC
    • Steven W. Wentworth
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    Make-Up/Break-Out Device For Drilling Hammers
    • Publication number 20140131110
    • Publication date May 15, 2014
    • EARTH TOOL COMPANY LLC
    • Mark D. Randa
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    Pneumatic impact tool
    • Publication number 20090283285
    • Publication date Nov 19, 2009
    • Mark D. Randa
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    Pneumatic impact piercing tool
    • Publication number 20090260842
    • Publication date Oct 22, 2009
    • Mark D. Randa
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Apparatus for on-grade boring
    • Publication number 20060269361
    • Publication date Nov 30, 2006
    • Steven W. Wentworth
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING