Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Construction
Class Information
Number: 175/283
Name: Boring or penetrating the earth > Cutter element laterally shiftable below ground (e.g., expansible) > With shifting mechanism spring biased to operative position > Cutter element substantially longitudinally movable on shaft > 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 bit 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
8016053 Drill bit configurations for parked-bit or through-the-bit-logging Sep. 13, 2011
4407376 Under-reaming pile bore excavator Oct. 4, 1983
4401172 Drilling tool Aug. 30, 1983











 
 
  Recently Added Patents
Light irradiation element, image forming structure, and image forming apparatus
Automatic misalignment balancing scheme for multi-patterning technology
Image forming apparatus and method
Programming method of non-volatile memory device
Liquid dispensing apparatus
Plants and seeds of corn variety CV577261
Color image forming apparatus with contact control of process units
  Randomly Featured Patents
Method for manufacturing cantilever structure of probe card
Metal hydrates and salts of carboxylic acids
Variable shift schedule control
Photographic objective with automatic diaphragm
Adsorbent compositions for the removal of hydrogen sulfide from fluid streams
Systems and methods for fault-tolerant high integrity data propagation using a half-duplex braided ring network
Enhanced cluster failover management
Data alignment of the packetized elementary streams in the coded data buffer for dual decode
Apparatus for restoring the correct phase relation of the chroma and luminance signals passed through separate paths
Substrate processing apparatus