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Class Information
Number: 175/273
Name: Boring or penetrating the earth > Cutter element laterally shiftable below ground (e.g., expansible) > Cutter element shifted by cam or gear axially rotatable relative to shaft
Description: Apparatus in which the laterally movable cutter element is connected to a cam or gear which is mounted to rotate about an axis substantially coincident with the longitudinal axis of the shaft so that relative movement of the cam or gear and the shaft about said axis will cause the cutter element to move laterally relative to the shaft.










Patents under this class:

Patent Number Title Of Patent Date Issued
8616303 Helical drilling apparatus, systems, and methods Dec. 31, 2013
8567530 Collapsible rock head and associated structure Oct. 29, 2013
8561724 Expanding mill having camming sleeve for extending cutting blade Oct. 22, 2013
8371400 Downhole tool actuation Feb. 12, 2013
8365843 Downhole tool actuation Feb. 5, 2013
8360173 Positive engagement underreamer and method Jan. 29, 2013
8302706 Apparatus and method for installing ground anchoring systems Nov. 6, 2012
8235147 Apparatus and method for installing ground anchoring systems Aug. 7, 2012
8210251 Slickline conveyed tubular cutter system Jul. 3, 2012
8083010 Drilling device for drilling and reaming of a hole Dec. 27, 2011
8006783 Helical drilling apparatus, systems, and methods Aug. 30, 2011
7703553 Downhole tool having radially extendable members Apr. 27, 2010
7493971 Concentric expandable reamer and method Feb. 24, 2009
7467661 Downhole perforator assembly and method for use of same Dec. 23, 2008
7370712 Under reamer May. 13, 2008
6851492 Fastener, hammering jig for installing the fastener, and drill bit for working undercut hole Feb. 8, 2005
6439323 Seismic shothole reaming module Aug. 27, 2002
6394197 Reverse circulation drilling system with bit locked underreamer arms May. 28, 2002
6209665 Reverse circulation drilling system with bit locked underreamer arms Apr. 3, 2001
6206114 Tool for transporting cutting means to and from a ground drill Mar. 27, 2001
6059053 Retraction system for a latching mechanism of a tool May. 9, 2000
5975222 Reverse circulation drilling system with bit locked underreamer arms Nov. 2, 1999
5787999 Drill bit with set of underreamer arms Aug. 4, 1998
5785134 System for in-situ replacement of cutting means for a ground drill Jul. 28, 1998
5662182 System for in situ replacement of cutting means for a ground drill Sep. 2, 1997
5460231 Device and method for augering a conical hole in solid media Oct. 24, 1995
5186265 Retrievable bit and eccentric reamer assembly Feb. 16, 1993
5020613 Device for cutting undercuts Jun. 4, 1991
4930585 Device for drilling borehole undercuts Jun. 5, 1990
4846290 Underreamer with revolving diamond cutter elements Jul. 11, 1989
4700789 Device to obtain ring-shaped cavities in the bottom of drilled holes made in any type of medium Oct. 20, 1987
4640371 Process and tool for boring cavity holes, more especially in concrete plaster or similar walls Feb. 3, 1987
4055226 Underreamer having splined torque transmitting connection between telescoping portions for control of cutter position Oct. 25, 1977











 
 
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