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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
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Class Information
Number: 175/121
Name: Boring or penetrating the earth > With means to simultaneously feed and rotate tool from a single mechanical element > Rotary drive for relatively advancing feed screw
Description: Apparatus in which a feed screw moves axially relative to a means which is causing it to rotate.










Patents under this class:

Patent Number Title Of Patent Date Issued
8525690 Synchronized telemetry from a rotating element Sep. 3, 2013
7743852 Auger stabilizer Jun. 29, 2010
6994174 Washpipe assembly Feb. 7, 2006
6725949 Washpipe assembly Apr. 27, 2004
6705412 E-Z auger adaptor Mar. 16, 2004
6675918 Garden earth auger Jan. 13, 2004
6343663 Horizontal boring apparatus Feb. 5, 2002
5873421 Tool for installing a pipeline under a structure Feb. 23, 1999
5394949 Mobile soil sampling device Mar. 7, 1995
5133418 Directional drilling system with eccentric mounted motor and biaxial sensor and method Jul. 28, 1992
5067570 Auger and retaining shell assembly Nov. 26, 1991
5067569 Auger and sweeper assembly Nov. 26, 1991
5033554 Well point placement and removal apparatus Jul. 23, 1991
5007492 Safety stabilizer for auger Apr. 16, 1991
4911581 Pre-cast concrete pile and method and apparatus for its introduction into the ground Mar. 27, 1990











 
 
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