Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Construction
Class Information
Number: 175/114
Name: Boring or penetrating the earth > With means to simultaneously feed and rotate tool from a single mechanical element > Constant rotation rate permitted regardless of (1) release of feed force, or (2) change in feed rate
Description: Apparatus in which the mechanical movement, or means coupling the mechanical movement to the rotary drive and/or feed is adapted to rotate the tool at a uniform speed while permitting (1) complete disconnection of the feed drive or (2) a change in the speed at which the tool is being fed into the work.










Patents under this class:

Patent Number Title Of Patent Date Issued
5458207 Method and an equipment for adjusting rock drilling Oct. 17, 1995
4719978 Earth drilling device Jan. 19, 1988
4431063 Drive mechanism for drill Feb. 14, 1984
4421183 Flexible drive apparatus for boring lateral bore holes from well Dec. 20, 1983











 
 
  Recently Added Patents
Phosphoinositide 3-kinase inhibitor with a zinc binding moiety
Image reading apparatus, image reading method and program
Combination of a microorganism and a phytosphingosine derivative, composition, methods of use
Discharge lamp comprising coated electrode
Fingerprinting apparatus, system, and method
Light source lighting device including a constant-current supply that is connected to a light source and supplies a constant current of a substantially constant magnitude to the light source,
Method for detecting directions of regularity in a two-dimensional image
  Randomly Featured Patents
Tire with new bead bundle
Electromagnetically actuatable valve
Highly dispersed cuprous compositions
Hydrostatic transaxle
Night light wake up indicator
Rotatable stock container closet
Antenna and wristwatch
Modular display rack
Automotive wiper control system with fail-safe feature for preventing burn-in of wiper motor
Automobile