Resources Contact Us Home
Browse by Category: Main > Construction
Class Information
Number: 175/216
Name: Boring or penetrating the earth > With above-ground means for handling drilling fluid or cutting > Standpipe
Description: Apparatus including a substantially vertical conduit means which is usually either part of, attached to, or adjacent a derrick, and which is used to conduit fluid from a point located near ground level to a fluid handling element fixed at one end of an axially movable tool shaft.

Patents under this class:

Patent Number Title Of Patent Date Issued
8556004 Bottom preventer for use in a drilling system Oct. 15, 2013
6814167 Boring device and boring method Nov. 9, 2004
6230824 Rotating subsea diverter May. 15, 2001
4915452 Hydraulic borehole mining system and method Apr. 10, 1990
4867256 Injection of polymer chemicals into drilling mud Sep. 19, 1989
4514103 Safety guides for use with a rotary hose and kelly spinner hoses and the combination thereof Apr. 30, 1985

  Recently Added Patents
Method for generating codewords
Adaptive control for uncertain nonlinear multi-input multi-output systems
Methods and systems for motion estimation with nonlinear motion-field smoothing
Methods and apparatus for power amplifier calibration
Display systems with touch screens
Communication system and time synchronization method
High-voltage AC light-emitting diode structure
  Randomly Featured Patents
Frequency compensated communications reception
Therapeutic agents useful for treating pain
Microoptical system and fabrication method therefor
Frequency shifing device and method for automatic clock adjustment
Circuit breaker with hinged arcing contact
Combined keyboard and mouse entry
Uniform cover sheet with rough surface in a photosensitive element
Method for controlling copy protection in digital video networks
Osteoprotegerin binding proteins
Diffusion bonding process