Resources Contact Us Home
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
Hydrogen generation device and fuel cell system
Charged particle source with multiple selectable particle emitters
Battery structures and related methods
Mechanical and moisture protection apparatus for electronic devices
Semiconductor device including multi-chip
Fixture for camera attachments
Dynamic trunk distribution on egress
  Randomly Featured Patents
Alternate routing by increasing initially low QOS value of a selected alternate path during failure to user-specified value
Process for preparing triarylmethane derivatives
Molding register system
Highly stable heavy hydrocarbon hydrodesulfurization catalyst and methods of making and use thereof
Method and apparatus for the early diagnosis of subacute, potentially catastrophic illness
Method and device for producing continuous belts from plastic films
Heat curable one package polyurethane resin composition
Methods of making foamed materials of blended thermoplastic polymers using carbon dioxide
Integrated circuit package system with interconnect lock
Method of detecting life of image bearing member, image forming apparatus and cartridge