Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Construction
Class Information
Number: 175/357
Name: Boring or penetrating the earth > Bit or bit element > Rolling cutter bit or rolling cutter bit element > Circumferentially displaced cutter axes > Detachable multiaxis support or spider
Description: Apparatus in which all of the cutter elements are journaled on a separate axle or pin supported by a frame, bracket, or securing means which is readily detachable from the bit head in such manner that all of the axles or pins may be detached simultaneously.










Patents under this class:

Patent Number Title Of Patent Date Issued
7845437 Hole opener assembly and a cone arm forming a part thereof Dec. 7, 2010
7823657 Drilling assembly, drilling reamer arm assembly, and methods of drilling Nov. 2, 2010
5439067 Rock bit with enhanced fluid return area Aug. 8, 1995
4832135 Flow through raise boring bit May. 23, 1989
4182425 Reamer Jan. 8, 1980











 
 
  Recently Added Patents
Adjusting dental prostheses based on soft tissue
Architectural panel with natural fossil spade leaf embossed surface
Conductor-mixed active electrode material, electrode structure, rechargeable battery, and manufacturing method of conductor-mixed active electrode material
Automatic actuator for breakers or switches
Aggregating completion messages in a sideband interface
Apparatus for preventing overcharge of a battery
Content protection apparatus and content encryption and decryption apparatus using white-box encryption table
  Randomly Featured Patents
Ergonomic three axis positioner
Security features for paper
Missed approach procedure display system and method
Impact fastening tool
1-carbacephalosporin antibiotics
Patient table with footrest extension
Film receive magazine for a laser imager
Benzoxazepine compounds, their production and use as lipid lowering agents
Cosmetic product
Antenna