Resources Contact Us Home
Browse by Category: Main > Construction
Class Information
Number: 175/281
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
Description: Apparatus in which the laterally movable cutter element is carried on the bit head or shaft so that the cutter element is bodily movable generally longitudinally relative to the bit head or shaft to cause movement of the cutter element.

Sub-classes under this class:

Class Number Class Name Patents
175/282 Plural elements expanded into single socket 0
175/283 With forwardly extending noncutting portion 3

Patents under this class:

Patent Number Title Of Patent Date Issued
8281880 Expandable tool for an earth boring system Oct. 9, 2012
4842082 Variable outside diameter tool for use in pikewells Jun. 27, 1989

  Recently Added Patents
Magnetic element with top shield coupled side shield lamination
Organic electroluminescence element
Vehicle display system or projection display for a motor vehicle, and calibration method
Devices including composite thermal capacitors
Removable case
Housing for gas flow indicator
Mobile terminal and controlling method thereof
  Randomly Featured Patents
Electronic backup of applications
Apparatus for filtering plasticized materials
Tape recording and/or reproducing apparatus
Methanol treated activated sludge as an agricultural chemical carrier
Mattress pad
Motorized blend alignment tool
Safety penetrating instrument having a triggered portal sleeve for establishing an endoscopic portal in an anatomical cavity wall
Hydrogenolysis of 2,4,6,8,10,12-Hexabenzyl-2,4,6,8,10,12-Hexaazatetracyclo[,9 .0.sup.3,11 ]dodecane
Plant stress tolerance genes, and uses therefor