Rolling cutter drill bits

Details Rolling cutter drill bits Rolling cutter drill bits

1993-08-24

1995-11-14

Melius, Terry Lee

Boring or penetrating the earth

Bit or bit element

Rolling cutter bit or rolling cutter bit element

175369, 175371, E21B 1020

Patent

active

054658004

ABSTRACT:
A method of manufacturing a rolling cutter drill bit comprising a bit body which carries cutter assemblies each of which includes a cutter journal on the bit body, a cutter rotatably mounted on the journal, and a threaded retention ring screwed onto the cutter to retain the cutter on the journal while permitting a limited degree of axial displacement of the cutter relative to the journal. The method comprises the steps of predetermining a desired magnitude of maximum permitted axial displacement between the cutter and the journal, and then employing components for the cutter assembly which are so dimensioned as to provide, when assembled to form the cutter assembly, a maximum permitted axial displacement which is not greater than the predetermined magnitude. The appropriately dimensioned components may be specifically manufactured to the required size, or may be selected from a stock of components of differing sizes. Alternatively the maximum permitted axial displacement may be determined by adjusting the axial position of the retaining ring on the cutter during assembly.

REFERENCES:
patent: 4911255 (1990-03-01), Pearce
patent: 4991671 (1991-02-01), Pearce et al.
patent: 5080183 (1992-01-01), Schumacher et al.

Affiliated with

Also associated with

Rating

Rolling cutter drill bits does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Rolling cutter drill bits, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rolling cutter drill bits will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1215259