Patent applications and USPTO patent grants for Earth Tool Company LLC.The latest application filed is for "system and method for extracting a buried pipe".
Patent | Date |
---|---|
Assembly for relining a junction between a branch pipeline and a main pipeline, and for relining a part of or the whole branch pipeline Grant 11,131,418 - Rasmussen , et al. September 28, 2 | 2021-09-28 |
Lead pipe spudding prior to extraction or remediation Grant 10,969,053 - Crane , et al. April 6, 2 | 2021-04-06 |
Reversible pneumatic pipe ramming tool Grant 10,927,602 - Wentworth , et al. February 23, 2 | 2021-02-23 |
Extraction of ductile pipe Grant 10,584,807 - Wentworth , et al. | 2020-03-10 |
System And Method For Extracting A Buried Pipe App 20200056725 - Wentworth; Steven W. ;   et al. | 2020-02-20 |
Latch assembly for use with an inversion drum Grant 10,550,989 - Noggle , et al. Fe | 2020-02-04 |
Split ring ram adapter with cam adjustment Grant 10,415,722 - Wentworth , et al. Sept | 2019-09-17 |
Reversible Pneumatic Pipe Ramming Tool App 20190136629 - Wentworth; Steven W. ;   et al. | 2019-05-09 |
Slip style rod spinner for pipe bursting machine Grant 10,246,949 - Wentworth , et al. | 2019-04-02 |
Lead Pipe Spudding Prior To Extraction Or Remediation App 20190078720 - Crane; Robert F. ;   et al. | 2019-03-14 |
Latch Assembly For Use With An Inversion Drum App 20190063662 - Noggle; Craig Lawrence ;   et al. | 2019-02-28 |
Extraction Of Ductile Pipe App 20190049040 - Wentworth; Steven W. ;   et al. | 2019-02-14 |
Split Ring Ram Adapter With Cam Adjustment App 20190049042 - Wentworth; Steven W. ;   et al. | 2019-02-14 |
Powered slip actuation Grant 10,161,201 - Wentworth , et al. Dec | 2018-12-25 |
Slip Style Rod Spinner For Pipe Bursting Machine App 20180223608 - Wentworth; Steven W. ;   et al. | 2018-08-09 |
Steerable Downhole Hammer Bit App 20180155985 - Wentworth; Steven W. ;   et al. | 2018-06-07 |
Gut hook bladed pipe slitter Grant D816,456 - Crane , et al. May 1, 2 | 2018-05-01 |
Slip Style Rod Spinner For Pipe Bursting Machine App 20180073311 - Wentworth; Steven W. ;   et al. | 2018-03-15 |
Slip style rod spinner for pipe bursting machine Grant 9,915,109 - Wentworth , et al. March 13, 2 | 2018-03-13 |
Powered Slip Actuation App 20170234084 - Wentworth; Steven W. ;   et al. | 2017-08-17 |
Directional drill hammer pullback device Grant 9,611,696 - Crane , et al. April 4, 2 | 2017-04-04 |
Stepped load pull back using rams Grant 9,574,696 - Aus February 21, 2 | 2017-02-21 |
Method And Apparatus For Replacing Culverts App 20170045175 - Clarke; William Geoffrey ;   et al. | 2017-02-16 |
Pipe slitter Grant 9,566,653 - Randa , et al. February 14, 2 | 2017-02-14 |
Pipe slitting apparatus Grant 9,512,951 - Randa , et al. December 6, 2 | 2016-12-06 |
Eccentric Cones For Rock Cutting App 20160340981 - Wentworth; Steven W. ;   et al. | 2016-11-24 |
Gut Hook Bladed Pipe Slitter App 20160319979 - Crane; Robert F. ;   et al. | 2016-11-03 |
Powered Slip Actuation App 20160161023 - Wentworth; Steven W. ;   et al. | 2016-06-09 |
Quick connect rods Grant 9,328,760 - Wentworth , et al. May 3, 2 | 2016-05-03 |
Directional Drill Hammer Pullback Device App 20160010394 - Crane; Robert F. ;   et al. | 2016-01-14 |
Directional drill hammer pullback device Grant 9,169,946 - Crane , et al. October 27, 2 | 2015-10-27 |
Slip Style Rod Spinner For Pipe Bursting Machine App 20150252632 - Wentworth; Steven W. ;   et al. | 2015-09-10 |
Pipe Slitting Apparatus App 20150198279 - Randa; Mark D. ;   et al. | 2015-07-16 |
Pipe Slitter App 20150098765 - Randa; Mark D. ;   et al. | 2015-04-09 |
Rod pulling and pushing machine for pipe bursting Grant 8,979,435 - Wentworth , et al. March 17, 2 | 2015-03-17 |
Beacon assembly Grant 8,955,586 - Randa , et al. February 17, 2 | 2015-02-17 |
Pneumatic impact tool Grant 8,955,613 - Randa February 17, 2 | 2015-02-17 |
Tricone Bit Construction App 20150014060 - Wentworth; Steven W. ;   et al. | 2015-01-15 |
Reamer assembly Grant 8,887,833 - Crane November 18, 2 | 2014-11-18 |
Joint with check valve for a boring apparatus Grant 8,875,811 - Randa November 4, 2 | 2014-11-04 |
Powered Slip Actuation App 20140294512 - Wentworth; Steven W. ;   et al. | 2014-10-02 |
Drill string tooling joint Grant 8,844,655 - Crane September 30, 2 | 2014-09-30 |
Stepped Load Pull Back Using Rams App 20140270970 - Aus; Kelvin C. | 2014-09-18 |
Directional Drill Hammer Pullback Device App 20140255103 - Crane; Robert F. ;   et al. | 2014-09-11 |
Directional Boring Tooling Reed Type Checkflow Valve App 20140251694 - Crane; Robert F. | 2014-09-11 |
Wire Rope Payout Upon Tensile Demand App 20140248089 - Thompson; Walter G. ;   et al. | 2014-09-04 |
Make-Up/Break-Out Device For Drilling Hammers App 20140131110 - Randa; Mark D. ;   et al. | 2014-05-15 |
Dynamic steering tool Grant 8,640,793 - Wentworth February 4, 2 | 2014-02-04 |
Quick Connect Rods App 20130343814 - Wentworth; Steven W. ;   et al. | 2013-12-26 |
Deep Trench Rod Loader Apparatus App 20130243530 - Bischel; Brian John ;   et al. | 2013-09-19 |
Dynamic Steering Tool App 20130098686 - Wentworth; Steven W. | 2013-04-25 |
Non-Magnetic Transmitter Housing App 20120235686 - Wentworth; Steven W. | 2012-09-20 |
Joint for use in back reaming Grant 8,225,885 - Wentworth , et al. July 24, 2 | 2012-07-24 |
Pneumatic impact piercing tool Grant 8,181,714 - Randa May 22, 2 | 2012-05-22 |
Rod pushing and pulling machine Grant 8,157,478 - Wentworth , et al. April 17, 2 | 2012-04-17 |
Reamer Assembly App 20120043132 - Crane; Robert F. | 2012-02-23 |
Drill String Tooling Joint App 20120018221 - Crane; Robert F. | 2012-01-26 |
Rod Pulling And Pushing Machine For Pipe Bursting App 20110188943 - Wentworth; Steven W. ;   et al. | 2011-08-04 |
Rod pulling and pushing machine for pipe bursting Grant 7,909,539 - Wentworth , et al. March 22, 2 | 2011-03-22 |
Method and apparatus for removing tuberculation from sanitary water pipelines Grant 7,828,903 - Wentworth November 9, 2 | 2010-11-09 |
Impact Powered Transmitter For Directional Drilling App 20100263930 - Wentworth; Steven W. | 2010-10-21 |
Method and apparatus for pipe reforming and clearing Grant 7,559,722 - Crane July 14, 2 | 2009-07-14 |
Portable winch Grant 7,500,651 - Wentworth , et al. March 10, 2 | 2009-03-10 |
Cable pulling machine Grant 7,490,814 - Hau February 17, 2 | 2009-02-17 |
Method and apparatus for replacement of underground pipe Grant 7,255,516 - Wentworth , et al. August 14, 2 | 2007-08-14 |
Cable pulling machine Grant 7,175,367 - Hau February 13, 2 | 2007-02-13 |
Rod pulling and pushing machine for pipe bursting Grant 7,140,806 - Wentworth , et al. November 28, 2 | 2006-11-28 |
Method for extracting underground pipe Grant 7,128,499 - Wentworth October 31, 2 | 2006-10-31 |
Method and apparatus for on-grade boring Grant 7,086,808 - Wentworth , et al. August 8, 2 | 2006-08-08 |
Pneumatic ground piercing tool Grant 7,066,279 - Randa June 27, 2 | 2006-06-27 |
Method and apparatus for replacement of underground pipe Grant 7,055,621 - Wentworth , et al. June 6, 2 | 2006-06-06 |
Winch with telescoping mast Grant 7,048,257 - Wentworth , et al. May 23, 2 | 2006-05-23 |
Pneumatic impact piercing tool Grant 7,028,785 - Randa April 18, 2 | 2006-04-18 |
Method and system for operating a reversible pneumatic ground piercing tool Grant 6,953,095 - Randa October 11, 2 | 2005-10-11 |
Pneumatic impact piercing tool Grant 6,923,270 - Randa August 2, 2 | 2005-08-02 |
Method and apparatus for replacement of underground pipe Grant 6,913,091 - Wentworth , et al. July 5, 2 | 2005-07-05 |
Method and accessories for pipe replacement Grant 6,792,820 - Wentworth , et al. September 21, 2 | 2004-09-21 |
Drill bit for directional drilling in cobble formations Grant 6,789,635 - Wentworth , et al. September 14, 2 | 2004-09-14 |
Method and apparatus for replacement of underground pipe Grant 6,761,507 - Wentworth , et al. July 13, 2 | 2004-07-13 |
Pipe replacement method and rotary impact mechanism for pipe bursting Grant 6,755,593 - Wentworth , et al. June 29, 2 | 2004-06-29 |
Method and apparatus for slitting flexible pipe in an underground bore Grant 6,655,874 - Crane , et al. December 2, 2 | 2003-12-02 |
Drill bit for directional drilling Grant 6,588,515 - Wentworth , et al. July 8, 2 | 2003-07-08 |
Roller pipe burster Grant 6,568,488 - Wentworth , et al. May 27, 2 | 2003-05-27 |
Drill bit for impact-assisted directional boring Grant 6,533,052 - Wentworth , et al. March 18, 2 | 2003-03-18 |
Sonde housing structure Grant 6,470,979 - Wentworth , et al. October 29, 2 | 2002-10-29 |
Method and bit for directional horizontal boring Grant 6,450,269 - Wentworth , et al. September 17, 2 | 2002-09-17 |
Method and apparatus for directional boring under mixed conditions Grant 6,439,319 - Wentworth , et al. August 27, 2 | 2002-08-27 |
Apparatus for mounting an electronic device for use in directional drilling Grant 6,422,782 - Wentworth July 23, 2 | 2002-07-23 |
Drill bit for directional drilling Grant 6,390,087 - Wentworth , et al. May 21, 2 | 2002-05-21 |
Bit for directional drilling Grant 6,321,858 - Wentworth , et al. November 27, 2 | 2001-11-27 |
Pneumatic ground piercing tool with movable chisel head Grant 6,273,201 - Randa , et al. August 14, 2 | 2001-08-14 |
Ground piercing tool with plastic body Grant 6,269,889 - Wentworth August 7, 2 | 2001-08-07 |
Apparatus for directional drilling Grant 6,263,983 - Wentworth , et al. July 24, 2 | 2001-07-24 |
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