Boring or penetrating the earth – Enlargement of existing pilot throughbore requiring...
Patent
1991-05-17
1992-12-29
Melius, Terry L.
Boring or penetrating the earth
Enlargement of existing pilot throughbore requiring...
175 96, 175407, 175415, 299 62, E21B 416
Patent
active
051743906
ABSTRACT:
A cluster drill includes a first plate portion and a second plate portion. The first plate portion extends parallel to the second plate portion and is rigidly affixed to the second plate portion. At least one first and second plate aperture is formed in the first and second plate, respectively. At least one modular retainer unit, to be mounted within the first and second plate apertures, retains a first and second portion of a rock drill apparatus. A cannister affixes the first plate portion relative to the second plate portion. The cannister may be either cylindrical or contain protuberances to accommodate the modular retainer unit. A drill bit lock restricts motion between the a drill bit and the second plate when desired.
REFERENCES:
patent: 3314724 (1967-04-01), Tinlin
patent: 4410053 (1983-10-01), Masse
patent: 4729439 (1988-03-01), Kurt
patent: 4878547 (1989-11-01), Lennon
Foster Glenn B.
Ingersoll-Rand Company
Melius Terry L.
Selko John J.
LandOfFree
Modular cluster drill apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Modular cluster drill apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Modular cluster drill apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1881697