US PATENT SUBCLASS 405 / 259.6
.~.~.~ Breaking canister or packet

Current as of: June, 1999
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405 /   HD   HYDRAULIC AND EARTH ENGINEERING

258  DF  EARTH TREATMENT OR CONTROL {5}
259.1  DF  .~ Rock or earth bolt or anchor {5}
259.5  DF  .~.~ With settable material feature {1}
259.6.~.~.~ Breaking canister or packet

DEFINITION

Classification: 405/259.6

Breaking canister or packet:

(under subclass 259.5) Method or apparatus wherein the insertion of the bolt into the earth destroys a container thereby releasing the settable material into the hole.