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Class Information
Number: 175/280
Name: Boring or penetrating the earth > Cutter element laterally shiftable below ground (e.g., expansible) > With shifting mechanism spring biased to operative position > Cam or gear means movable to shift cutter element > With forwardly extending noncutting portion
Description: Apparatus in which the laterally movable cutter element is carried on a bit head or shaft which has a portion extending inwardly toward the axis of the shaft and forward of the cutter element in the direction of boring and which has no cutting function.










Patents under this class:

Patent Number Title Of Patent Date Issued
8302706 Apparatus and method for installing ground anchoring systems Nov. 6, 2012











 
 
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