Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Construction
Class Information
Number: 175/189
Name: Boring or penetrating the earth > With tool drive prime mover or above-ground mechanical motion converting drive means > Drive reciprocates tool
Description: Apparatus in which the tool drive comprises a means to cause substantially rectilinear to and from movement of the tool.










Patents under this class:

Patent Number Title Of Patent Date Issued
8342263 Vibratory drill head mounting and rotation coupling system Jan. 1, 2013
7584810 Top drive power swivel assembly Sep. 8, 2009
7240744 Rotary and mud-powered percussive drill bit assembly and method Jul. 10, 2007
7237625 Device for simulataneously casing a hole while drilling Jul. 3, 2007
7093679 Foundation drilling apparatus and method with continuously variable hydraulic differential rotary table Aug. 22, 2006
7013996 Impact device Mar. 21, 2006
6814166 Direct push drilling swivel and method for its use Nov. 9, 2004
6745836 Down hole motor assembly and associated method for providing radial energy Jun. 8, 2004
6702045 Drilling apparatus Mar. 9, 2004
6675916 Boring machine and auger bit Jan. 13, 2004
6371222 Hammer device Apr. 16, 2002
5860482 Multiple force hole forming device Jan. 19, 1999
5353940 Alignment system for crane works and method of alignment Oct. 11, 1994
5305841 Hammer device Apr. 26, 1994
5092411 Drilling apparatus Mar. 3, 1992
5032039 Underground excavator Jul. 16, 1991
4993504 Device for efficient energy transfer and damping of impact drilling machines Feb. 19, 1991
4742876 Submarine drilling device May. 10, 1988
4550788 Roof bolt hole groover Nov. 5, 1985











 
 
  Recently Added Patents
Method and system for establishing security connection between switch equipments
Method and system for phase-sensitive magnetic resonance imaging
Flexible quantization
Display apparatus
Media processing method and device
Method and apparatus for focusing electrical stimulation in the brain during electro-convulsive therapy
Synthesizing VHDL multiple wait FSMS into RT level FSMS by preprocessing
  Randomly Featured Patents
Resistor circuit with reduced temperature coefficient of resistance
Liquid storage unit and liquid ejecting apparatus
Method of protecting a capacitor
Image display unit
Dispenser for rolled material
Multi-spot illumination and collection optics for highly tilted wafer planes
Phase shift mask including a substrate with recess
Clamping tool
Speedband intubation plug
Convertible multirate dial register for energy consumption meters