Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
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
Method and apparatus to adjust received signal
Breathing mask
Collaborative computing community role mapping system and method
Spray drying vancomycin
Recording apparatus, recording method, reproducing apparatus, reproducing method, program, and recording/producing apparatus
Method for detecting security error in mobile telecommunications system and device of mobile telecommunications
Methods and kits for predicting the responsiveness of hepatocellular carcinoma patients to 5-fluorouracil-based combination chemotherapy
  Randomly Featured Patents
Position detection system and position detector
System for joining limp material segments with easing
Extended-release solid oral dosage forms of drugs having low solubility in water
Easily assemblable toy figure
Convertible plaque
Bidirectional line driver
Humidity sensing element and method of manufacture thereof
Thread trimmer mechanism for sewing machines
Material transfer method and manufacturing method for substrate for plasma display
Sulfonamide compounds and medicinal use thereof