Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Construction
Class Information
Number: 175/416
Name: Boring or penetrating the earth > Bit or bit element > Impact or percussion type > Noncircular bore cutter
Description: Apparatus in which the bit is formed so as to normally cut a hole which is noncircular in cross section.










Patents under this class:

Patent Number Title Of Patent Date Issued
8272458 Drill bit with replaceable blade members Sep. 25, 2012
7120565 Method and apparatus for determining figure Oct. 10, 2006
6213232 Drilling tool helical shank formed from a polygonal profile bar Apr. 10, 2001
5743345 Drill bit for reverse drilling Apr. 28, 1998
4844186 Replaceable well drill bit Jul. 4, 1989
4074778 Square hole drill Feb. 21, 1978
4071100 Method of making holes of selected external configuration in preferably rock or ground formation, and a drilling machine for carrying out the method Jan. 31, 1978
4056154 Squaring off and reaming tool for deep elongated trench excavations Nov. 1, 1977











 
 
  Recently Added Patents
Surfcraft fin
Methods and devices for detecting and measuring environmental conditions in high performance device packages
Method of measuring a displacement amount for an automobile suspension assembly
Method of making a CIG target by cold spraying
Estrogen receptor ligands
Variable month cross-platform photo calendar builder
O-space imaging: highly efficient parallel imaging using complementary nonlinear encoding gradient fields and receive coil geometries
  Randomly Featured Patents
Mask algorithms for health management systems
Remotely configurable user device for accessing a distributed transaction system
Providing notifications to an individual in a multi-dimensional personal information network
Systems and methods for prevention of open loop damage during or immediately after manufacturing
Screw mount placement device
Method for treating liquid waste after pulp bleaching
Method and system for removal of red eye effects
Self-cleaning drain for food preparation apparatus
Method and an apparatus for thin film formation
Vacuum distillation apparatus for removal of volatile impurities from liquids