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
Flexure with insulating layer isolating a portion of a metal substrate
Printing apparatus and method of operation of a printing apparatus
Method for preparing an organic film at the surface of solid support under non-electrochemical conditions, solid support thus obtained and preparation kit
Data transfer operation completion detection circuit and semiconductor memory device provided therewith
Transactional consistency scheme
Writing implement
System and method for detecting deadlock in a multithread program
  Randomly Featured Patents
Method for locating disruptions in electrical cable
Printing device communication protocol
Housing cooling system
Means to fire a fully automatic gun underwater using a special barrel clearance blank round
Power switching device mounting adapter
Odd/even bank structure for a cache memory
Device, system and method of locating a wireless communication device
Sprinkler system for refrigerated spaces
Vehicle height adjusting device
Apparatus for automatically cutting and attaching lengths of leader tape to lengths of magnetic tape and winding them onto supply and take up reels