Boring or penetrating the earth – Bit or bit element – Rolling cutter bit or rolling cutter bit element
Patent
1983-06-10
1985-05-07
Novosad, Stephen J.
Boring or penetrating the earth
Bit or bit element
Rolling cutter bit or rolling cutter bit element
175 69, E21B 1060
Patent
active
045152292
ABSTRACT:
In order to prevent the moisture in the general air supply from entering the first flow and generating mud in the area of the cones of a drill bit assembly, separator means is provided within the plenum chamber supported on the housing walls proximate to the conduit through which a first flow path flows. This may be done by using a stand pipe supported on an orifice plate of the first conduit and extending above the openings of a second conduit. Perforations in the stand pipe are above the second conduit. A fluid flow diverter at the end of the stand pipe is preferably of conical shape, larger diameter than the stand pipe and arranged so that its edges extend below some of the perforations on the stand pipe so that air entering the first flow must reverse course to pass through the perforations. Water cannot readily reverse in this manner. The larger second flow laterally out of the housing near the base of the plenum chamber below the stand pipe perforations is redirected away from the cutting cone but picks up the dust and cuttings fed to it by the first flow and carries them out of the drill hole.
Air for an air cooling and lubricating system for the bearings is taken from the plenum chamber above the diverter means and fed through channels to the bearings. The channel leading from the plenum may be shielded in the direction of fluid flow again to require air entering to reverse flow.
REFERENCES:
patent: 1710606 (1929-04-01), Brady
patent: 2634101 (1953-04-01), Sloan
patent: 2920872 (1960-01-01), Baur et al.
patent: 3029881 (1962-04-01), Swart
patent: 3037264 (1962-06-01), Mossberg
patent: 3048230 (1962-08-01), Angel
patent: 3199382 (1965-08-01), Andreasson
patent: 3359837 (1967-12-01), Andreasson
patent: 3370489 (1968-02-01), Andreasson
patent: 3401758 (1968-09-01), Talbert
patent: 3511120 (1970-05-01), Kaser
patent: 3543613 (1970-12-01), Obloy
patent: 3561299 (1971-02-01), Brisk et al.
patent: 3597817 (1971-08-01), Whalley
patent: 3798725 (1974-03-01), Hanson
patent: 3924695 (1975-12-01), Kennedy
patent: 4080091 (1978-03-01), Hollingshead
patent: 4154313 (1979-05-01), Dysart et al.
patent: 4168925 (1979-09-01), Dufresne
Drummond Donald D.
Johnsey Walter F.
Wood Roy W.
Bui Thuy M.
Novosad Stephen J.
LandOfFree
Drill bit assembly with fluid separator does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Drill bit assembly with fluid separator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Drill bit assembly with fluid separator will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1794354