Boring or penetrating the earth – With tool shaft detail – Shaft carried guide or protector
Patent
1987-11-25
1988-12-27
Dang, Hoang C.
Boring or penetrating the earth
With tool shaft detail
Shaft carried guide or protector
175346, 175348, E21B 1030
Patent
active
047934255
ABSTRACT:
A roller-reamer stabilizer having a plurality of roller cutters mounted in recesses in the supporting body such that each roller is free to rotate in its own bearing blocks. The cutters and bearing blocks are provided with air bleed lubrication and cooling from a central bore in the supporting body as is common and well known in the art. The present invention deals with the supporting body of a roller-reamer stabilizer of the near bit type and in particular one that would be used in the mining blast hole drilling industry. This supporting body is characterized by having a profiled lower end having maximum diameter outer surfaces separated by minimum diameter relief areas. The maximum diameter surfaces are, respectively, aligned with the cutters and extend upwardly from near the lower surface of the body to encompass the lower bearing blocks. The minimum diameter relief areas extend further up the body and terminate level with the upper bearing blocks. This configuration reduces the wear experienced in the vicinity of the lower bearing blocks.
REFERENCES:
patent: Re27781 (1973-10-01), Garrett
patent: 1474633 (1923-11-01), Hughes
patent: 1906427 (1933-05-01), Sievers et al.
patent: 2122763 (1938-07-01), Smith, Jr.
patent: 2154553 (1939-04-01), Zublin
patent: 2742264 (1956-04-01), Snyder
patent: 3220497 (1965-11-01), Mori
patent: 3303900 (1967-02-01), Kloesel, Jr. et al.
patent: 3306379 (1967-02-01), Kloesel, Jr. et al.
patent: 3659663 (1972-05-01), Dysart
patent: 3729057 (1973-04-01), Werner
patent: 3754609 (1973-08-01), Garrett
patent: 3820613 (1974-06-01), White
patent: 3851719 (1974-12-01), Thompson et al.
patent: 3907048 (1975-09-01), Gray
patent: 3945447 (1976-03-01), Peterson
patent: 3977481 (1976-08-01), Fisk et al.
patent: 3978933 (1976-09-01), Olson et al.
patent: 4013325 (1977-03-01), Rear
patent: 4020910 (1977-05-01), Peterson et al.
patent: 4049066 (1977-09-01), Richey
patent: 4189012 (1980-02-01), Garrett
patent: 4220213 (1980-09-01), Hamilton
patent: 4226291 (1980-10-01), Spelts
patent: 4231437 (1980-11-01), Swersky et al.
patent: 4245708 (1981-01-01), Cholet et al.
patent: 4254839 (1981-03-01), Schpok et al.
patent: 4262759 (1981-04-01), Young et al.
patent: 4352400 (1982-10-01), Grappendorf et al.
patent: 4385669 (1983-05-01), Knutsen
patent: 4467879 (1984-08-01), Burge
patent: 4548284 (1985-10-01), Shinn et al.
Dang Hoang C.
Gerken Karen M.
McGraw James
Smart Russel S.
LandOfFree
Profiled body roller-reamer stabilizer does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Profiled body roller-reamer stabilizer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Profiled body roller-reamer stabilizer will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-862721