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US 7,503,628 B2Granted
Formation breaking assembly
OwnerDavid R. Hall, Ronald Crockett +1inventors
InventorsDavid R. Hall, Ronald Crockett, Robert P. Chase
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Abstract
A formation breaking apparatus with increased wear-resistance is disclosed. In one aspect of the invention, the apparatus has an assembly attached to an end of an articulated arm. The assembly has an actuator in mechanical communication with an axially guided penetrator. The penetrator may have a body intermediate a proximate end and a distal end; the proximate end being adapted to communicate with the actuator, and the distal end comprising a hard material with a hardness of at least 63 HRc.
Claims17
A formation breaking apparatus, comprising:
- an assembly attached to an end of an articulated arm;
- the assembly comprising an actuator in mechanical communication with an axially guided penetrator;
- the penetrator comprising a body intermediate a proximate end and a distal end;
- the proximate end being adapted to communicate with the actuator;
- and
- the distal end comprising a hard material with a hardness of at least 63 HRc;
- the actuator is disposed within a housing and a portion of the axially guided penetrator extends out of an opening in the housing;
- a bushing is fixed to the housing and is adapted to align at least a portion of the penetrator;
- and
- the bushing comprises a hard material with a hardness of at least 63 HRc.
7 more elements
Dependencies are inferred from the claim text.