Resources Contact Us Home
Browse by Category: Main > Construction
Class Information
Number: 175/270
Name: Boring or penetrating the earth > Cutter element laterally shiftable below ground (e.g., expansible) > Cutter element shifted by dropped element
Description: Apparatus in which the laterally movable cutter element is moved laterally by means of a part which is specifically described as being dropped from above ground to an operative position below ground.

Patents under this class:

Patent Number Title Of Patent Date Issued
8205689 Stabilizer and reamer system having extensible blades and bearing pads and method of using same Jun. 26, 2012
7673708 Ball-activated mechanism for controlling the operation of a downhole tool Mar. 9, 2010
6443247 Casing drilling shoe Sep. 3, 2002

  Recently Added Patents
Method of operating an election ballot printing system
Plasma doping method and plasma doping apparatus
Blueberry plant named `DrisBlueFour`
Collaborative image capture
Fan guide
Process for making thermoplastic polymer pellets
Avirulent oncolytic herpes simplex virus strains engineered to counter the innate host response
  Randomly Featured Patents
Phlox plant named `Barsixtythree`
Method and apparatus for regulating the advancing movement of articles, for example in installations for the automatic packaging of food products
Optical resolution of (.+-.)-2-(4-isobutylphenyl)-propionic acid
Fiber optics image scope (micro-endoscope), ureteroscope
Apparatus and method for optically controlling the output energy of a pulsed laser source
Truck sports rack
Memory device and method for improving speed at which data is read from non-volatile memory
Dual mode data imaging product
CPR Protocol and cardiopulmonary resuscitator for effecting the same