A method and apparatus for drilling and positioning a collar support sleeve into a blast hole
Номер патента: EP4051860A1
Опубликовано: 07-09-2022
Автор(ы): Gregory Patching
Принадлежит: Aquirian Technology Pty Ltd
Опубликовано: 07-09-2022
Автор(ы): Gregory Patching
Принадлежит: Aquirian Technology Pty Ltd
Реферат: The invention provides an apparatus and method for preventing surrounding loose rock fragments from falling or collapsing into a bore hole during drilling and immediately after removal of a drill string from the bore hole. The apparatus includes bore hole sleeve for a bore hole drill, the sleeve including a tube member adapted to be coupled to a mast of a mobile bore hole drill and to be positioned within the collar region of a bore hole, the tube member including a longitudinal internal passage for receiving a drill string therethrough and an external surface for facing outwardly against a wall of the bore hole.
Method and apparatus for forming lateral boreholes
Номер патента: US5425429A. Автор: Michael C. Thompson. Владелец: Individual. Дата публикации: 1995-06-20.