Resources Contact Us Home
Jacket tube for a drilling and anchoring device

Image Number 4 for United States Patent #6397957.

A jacket tube for a device for drilling holes and forming an anchorage in the earth or rock. The jacket tube is coupled with a drill pipe and/or a drill bit or a drill hammer and is configured with a plurality of through openings across its periphery. Once the borehole has been made, or after an anchor has been introduced, the jacket tube can be filled with a hardenable suspension. The jacket tube consists of at least one expanded metal element which has evenly distributed through openings and connecting elements, especially sleeves, at the ends for connecting to a drill bit and/or other jacket tube elements. The borehole is therefore easy to produce and the jacket tube can be anchored securely.

  Recently Added Patents
Client-managed group communication sessions within a wireless communications system
Method and apparatus for controllable communication
Method for etched cavity devices
Chain link
Multi-layer, microporous polyolefin membrane, its production method, battery separator and battery
Method of forming solderable side-surface terminals of quad no-lead frame (QFN) integrated circuit packages
Process for preparing higher hydridosilanes
  Randomly Featured Patents
Low temperature plasma enhanced chemical vapor deposition of conformal silicon carbon nitride and silicon nitride films
High retention connection
Theft proof modular sign
All rubber golf ball with hoop-stress layer
Multi-layer sheet of absorbent paper and its manufacturing method
Digitally assisted power levelling circuit for rf power generator
Method for controlling the thickness of pavement and setting the conditions for automatic control of the leveling machine
Apparatus for testing flexibility of ammunition link belts
Apparatus and method for forming meat patties
Foldable antenna for reconfigurable radar system