Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Construction
Class Information
Number: 175/380
Name: Boring or penetrating the earth > Bit or bit element > Unsupported abrading particle type (e.g., shot)
Description: Apparatus in which the bit is particularly adapted to receive and restrain unsupported abrasive particles between its outer end and the bore bottom, said particles forming the cutting edge of the bit.










Patents under this class:

Patent Number Title Of Patent Date Issued
8342265 Shot blocking using drilling mud Jan. 1, 2013
8113300 Impact excavation system and method using a drill bit with junk slots Feb. 14, 2012
8087480 Device and method for feeding particles into a stream Jan. 3, 2012
6454028 Wear resistant drill bit Sep. 24, 2002
4042048 Drilling technique Aug. 16, 1977











 
 
  Recently Added Patents
Methods, systems, and media for swapping faces in images
Undercabinet plug-in mount
Image forming apparatus
Method of treating cancer using a survivin inhibitor
Anti-FGFR3 antibodies and methods using same
Moulded tie strips
Automatically selecting a paper with increased dimensions than originally desired for printing and adding advertisement content to the increased dimensional area of the paper
  Randomly Featured Patents
Orally administrable pharmaceutical composition
Spot color printing color conversion program, color conversion device and color conversion method
Susceptor with built-in electrode and manufacturing method therefor
Auxiliary active motor vehicle heating and air conditioning system
Adjustable limb support
Toothbrush holder with partitions
Switching power supply
Divider
Mower deck height adjustment
Method and apparatus of stably controlling rolling mill