Boring or penetrating the earth – Bit or bit element – Rolling cutter bit or rolling cutter bit element
Patent
1976-05-13
1977-08-09
Purser, Ernest R.
Boring or penetrating the earth
Bit or bit element
Rolling cutter bit or rolling cutter bit element
175372, E21B 908
Patent
active
040404935
ABSTRACT:
A cutter with a replaceable cutting element is adapted to be mounted upon the rotary head of an earth boring machine or upon the body of an earth boring bit. The cutter is used in conjunction with an earth boring machine that functions to form a borehole or tunnel in the formation being bored. The cutter may operate to fracture rock between a proximate pair of kerfs in a manner to cause fragments of the formation to be separated from the formation being bored or may crush and disintegrate the formation. At least one annular cutting element is mounted on the periphery of the cutter body for contacting the formations. The cutter body includes an external annular threaded surface between the ends of the cutter body. The cutting element includes a threaded inner surface that mates with the threads on the cutter body. A locking shoulder on the cutter body is in contact with a locking shoulder on the cutting element.
REFERENCES:
patent: 1143275 (1915-06-01), Hughes
patent: 3204710 (1965-09-01), Bechem
patent: 3216513 (1965-11-01), Robbins et al.
patent: 3612197 (1971-10-01), Motoyama
patent: 3858670 (1975-01-01), Ott
Dresser Industries Inc.
Favreau Richard E.
Purser Ernest R.
Scott Eddie E.
LandOfFree
Rock boring cutter with thread-on replaceable cutting element does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Rock boring cutter with thread-on replaceable cutting element, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rock boring cutter with thread-on replaceable cutting element will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1223047