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United States Patent | 9,945,180 |
Hartke , et al. | April 17, 2018 |
The present disclosure provides a machine capable of drilling into the ground at a wide range of angles relative to the ground surface. The present disclosure also provides novel drilling methods.
Inventors: | Hartke; Louis C. (Otley, IA), Hackman; David J. (Pella, IA), Gustafson; Daniel L. (Pella, IA), Bartels; Chad A. (Pleasantville, IA), Miller; Orin L. (Pella, IA), Philbrook; John W. (Pella, IA) | ||||||||||
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Applicant: |
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Assignee: |
Vermeer Manufacturing Company
(Pella,
IA)
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Family ID: | 44276718 | ||||||||||
Appl. No.: | 14/168,236 | ||||||||||
Filed: | January 30, 2014 |
Document Identifier | Publication Date | |
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US 20140144707 A1 | May 29, 2014 | |
Application Number | Filing Date | Patent Number | Issue Date | ||
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13006665 | Jan 14, 2011 | ||||
61295535 | Jan 15, 2010 | ||||
Current U.S. Class: | 1/1 |
Current CPC Class: | E21B 15/006 (20130101); E21B 19/20 (20130101); E21B 7/00 (20130101); E21B 7/046 (20130101); E21B 15/04 (20130101); E21B 7/02 (20130101); E21B 19/166 (20130101); E21B 19/15 (20130101); E21B 19/086 (20130101) |
Current International Class: | E21B 19/16 (20060101); E21B 7/00 (20060101); E21B 19/15 (20060101); E21B 15/00 (20060101); E21B 15/04 (20060101); E21B 7/04 (20060101); E21B 19/086 (20060101); E21B 19/20 (20060101); E21B 7/02 (20060101) |
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