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
Security patch update processor
Signal generator
Cup
Coding circuitry for difference-based data transformation
UV liquid treatment system
Topology arrangement for achieving reliable communication in wireless automotive networks
Vending machine
  Randomly Featured Patents
Semiconductor device having a plurality of semiconductor chips connected together by a bus
Method of and arrangement for recording and reproducing video images
Hydrodynamic electrical connector
Restartable fast DB2 tablespace reorganization method
Void-free interlayer dielectric (ILD0) for 0.18-micron flash memory semiconductor device
Thin film artwork compounds
Solid state imaging device capable of supressing generation of dark current
Power transmission unit for vehicle
Targeted delivery of antimicrobial agents
Process and apparatus for drying material