Earth boring drill bit with snap ring cutter retention

Details Earth boring drill bit with snap ring cutter retention Earth boring drill bit with snap ring cutter retention

1979-01-26

1980-12-02

Stearns, Richard R.

Cutlery

308DIG11, 175369, 175371, F16C 1712

Patent

active

042367646

ABSTRACT:
Disclosed herein is an earth boring bit of otherwise conventional construction except for the bearing and cutter retention. A snap fit ring is used to retain the cutter, the grooves that receive the ring and the ring construction being such that the ring is forced into the retainer groove when the cone is thrust inward. The ring cannot therefore accidentally return to its assembly position to permit cutter loss. This enables the use of exclusively frictional bearings and retainer means of exceptional strength and reliability.

REFERENCES:
patent: 1803679 (1931-05-01), Scott
patent: 2049581 (1936-08-01), Wright et al.
patent: 2075999 (1937-04-01), Reed
patent: 2192697 (1940-03-01), Scott
patent: 2513634 (1950-07-01), Francis
patent: 2717071 (1955-09-01), Cook
patent: 2814465 (1957-11-01), Green
patent: 3235316 (1966-02-01), Whanger
patent: 3467448 (1969-09-01), Galle
patent: 3942596 (1976-03-01), Millsapps, Jr.
patent: 3971600 (1976-07-01), Murdoch et al.
patent: 4157122 (1979-06-01), Morris

Affiliated with

Also associated with

Rating

Earth boring drill bit with snap ring cutter retention does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Earth boring drill bit with snap ring cutter retention, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Earth boring drill bit with snap ring cutter retention will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2280814