Activated rock cutting assembly

Details Activated rock cutting assembly Activated rock cutting assembly

1986-06-09

1989-03-28

Novosad, Stephen J.

Boring or penetrating the earth

Bit or bit element

Rolling cutter bit or rolling cutter bit element

51169, 125 5, 175398, 299 86, 409141, 409200, E21B 1008, E21B 1012

Patent

active

048155438

ABSTRACT:
A rock cutting assembly consists of a rock cutting roller, a shaft on which it is mounted, and a means for varying the mass of the assembly about the drive axis, to vary the balance of the assembly about that axis. Preferably two rollers are mounted on a common drive axis, the axes of the rollers being diametrally opposed and eccentrically displaced by the same distance from the drive axis. The mass-varying means may be a cavity or cavities in the hub or hubs, with means to introduce fluid into and extract it from the cavity or cavities. Alternatively the means may be a weight mounted to permit adjustment to vary the degree of imbalance.

REFERENCES:
patent: 1305978 (1919-06-01), Spence
patent: 1657609 (1928-01-01), Crickmer
patent: 1935654 (1933-11-01), Millican
patent: 2958165 (1960-11-01), Hoffman
patent: 3860292 (1975-01-01), Bechem
patent: 3967416 (1976-07-01), Birkenstock et al.
patent: 4049318 (1977-09-01), Fruin
patent: 4736987 (1988-04-01), Lenzen et al.

Affiliated with

Also associated with

Rating

Activated rock cutting assembly does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Activated rock cutting assembly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Activated rock cutting assembly will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1652722