Earth boring bit with air system access

Details Earth boring bit with air system access Earth boring bit with air system access

1985-04-19

1987-03-03

Novosad, Stephen J.

Boring or penetrating the earth

Bit or bit element

Rolling cutter bit or rolling cutter bit element

175339, 384 92, 215 36, E21B 1018

Patent

active

046468587

ABSTRACT:
An earth boring bit of the "air cooled" type that includes an air passage access system, including a generally vertical passage with an opening on the exterior of the leg or in the shank cavity that forms part of the body of the bit. This vertical passage is accessible through the opening by removal of a core that expands or retracts by altering the pressure exerted against it by two plates and a threaded fastener.

REFERENCES:
patent: 1294106 (1919-02-01), Humason
patent: 1758774 (1930-05-01), Zublin
patent: 1918902 (1933-07-01), Fletcher et al.
patent: 2072802 (1937-03-01), Kraft
patent: 2861780 (1958-11-01), Butler
patent: 2886067 (1959-05-01), Maxwell et al.
patent: 4014595 (1977-03-01), Dolezal
patent: 4245710 (1981-01-01), Dolezal et al.
patent: 4294492 (1981-10-01), Evans
patent: 4310029 (1982-01-01), Dudek
patent: 4446933 (1984-05-01), Bodine
patent: 4515229 (1985-05-01), Drummond et al.
patent: 4548280 (1985-10-01), Daly et al.

Affiliated with

Also associated with

Rating

Earth boring bit with air system access 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 bit with air system access, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Earth boring bit with air system access will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1012077