Resources Contact Us Home
Browse by Category: Main > Construction
Class Information
Number: 175/307
Name: Boring or penetrating the earth > With cutting edge cover
Description: Apparatus including a means provided to fit over and protect a cutting edge of a bit or cutter element from being damaged or inflicting damage only while the bit or cutter element is not in use, such means being necessarily removed or destroyed either before or simultaneously with the commencement of boring.

Patents under this class:

Patent Number Title Of Patent Date Issued
8517123 Milling cap for a polycrystalline diamond compact cutter Aug. 27, 2013
7228921 Ice auger covering apparatus Jun. 12, 2007
7201237 Stabilizing system and methods for a drill bit Apr. 10, 2007
5740872 Hardfacing material for rolling cutter drill bits Apr. 21, 1998
5279374 Downhole drill bit cone with uninterrupted refractory coating Jan. 18, 1994
4889194 Method and a device for deep hole drilling Dec. 26, 1989
4397361 Abradable cutter protection Aug. 9, 1983
3934659 Apparatus for drilling holes in earth surface Jan. 27, 1976

  Recently Added Patents
Storage system comprising multiple microprocessors and method for sharing processing in this storage system
Nonaqueous secondary battery with nitrile group-containing compound
Hydrofluorocarbon refrigerant compositions for heat pump water heaters
Systems and methods for computer-aided fold detection
Managing distributed applications using structural diagrams
Charge pump circuit and power-supply method for dynamically adjusting output voltage
Measurement of an analyte on the skin using a hue angle
  Randomly Featured Patents
Method for pressure testing valves
Apparatus for disposing of radioactive fuel channels
Roll-fed tape/film system for application of adhesive to various media in inkjet printing devices
Universally adjustable ice skate base
Gas laser with cooled coaxial electrode tubes
Programmable cockpit upgrade system
Method for enhancing network application security
Turbine cooling air centrifugal particle separator
System and method for detecting and discriminating between water and ice formation on objects
Foldable bed