Drill head

Details Drill head Drill head

1979-05-03

1981-11-03

Reynolds, Wm. Carter

Tool driving or impacting

With indicating or signaling means

173 57, 277165, E21B 702, E21C 702

Patent

active

042980739

ABSTRACT:
A drill head having a housing enclosed at its lower end by a lower cover and enclosed at its upper end by a drive cap which carries a drill tool chuck. Radial-thrust bearings are located in the upper portion of the housing. A driven bevel gear is located below the radial-thrust bearings. A hollow passageway through the drill tool, chuck, bearings and driven gear is sealed by a face seal located below the driven gear and mounted in part on the lower cover so as to be easily replaced by removal of the lower cover. A driving bevel gear, on a horizontal axis, is mounted on an adapter on the rear end of the housing, the adapter receiving a hydraulic motor connected to the driving gear.

REFERENCES:
patent: 2456819 (1948-12-01), Dobbs
patent: 2766012 (1956-10-01), Hale
patent: 2771273 (1956-11-01), Pond
patent: 2866670 (1958-12-01), Harris et al.
patent: 2960311 (1960-11-01), Scott
patent: 3032129 (1962-05-01), Fletcher et al.
patent: 3403916 (1968-10-01), Durham et al.
patent: 4141562 (1979-02-01), Wu
patent: 4190116 (1980-02-01), O'Neal
Drawing of Lee Norse.
Drawing of "Heavy-Duty Drill Pot Assembly", Galis Electric & Machine Co., 9/30/60.
Drawing of "Drill Head Assy.", Superior Hydraulics, Ind., 6/16/72 and Sep. 1976.

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