Resources Contact Us Home
Browse by Category: Main > Construction
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

  Recently Added Patents
Semiconductor device and method of manufacturing the same
Washing machine
Nacelle cover
Data processor and scanner device
Semiconductor device and manufacturing method thereof
Converter and measuring apparatus
Probe for ultrasound diagnostic apparatus
  Randomly Featured Patents
Method of laser machining molds with microtextured surfaces
Printing-fluid container
Metering device
Anti-seizure protection for joints, particularly suitable for the petroleum sector
Electronic timepiece
Isolated pump in a double pass pump Raman oscillator and optimum conversion of pump energy in a Raman oscillator and amplifier
Optical apparatus having flash-illumination-area controlling device using image shake correction device
Methods and apparatus for billing conference calls
Turbine engine having turbine cooled with diverted compressor intermediate pressure air