Drilling machine

Details Drilling machine Drilling machine

2007-08-31

2011-10-18

Durand, Paul (Department: 3721)

Tool driving or impacting

Means to drive tool about an axis

Gear drive

C173S199000, C173S218000, C408S056000

Reexamination Certificate

active

08037948

ABSTRACT:
A drilling machine includes a motor housing, a gear box housing, a shaft driven by the motor and extending into the gear box housing, a drilling shaft extending through the gear box housing and having an outgoing channel arranged in the drilling shaft for supply/removal of a drill flow medium to/from a tool part that is connectable to the drilling shaft, a drill flow medium room, between the motor housing and gear box housing, that can be supplied with drill flow medium when the drilling machine is in operation, and an incoming drill flow medium conduit for the supply/removal of the drill flow medium to/from the drill flow medium room. The motor housing includes a detachable end cover which forms the rear unit of the drilling machine. The gear box housing includes a detachable end cover that forms the front unit of the drilling machine.

REFERENCES:
patent: 1069288 (1913-08-01), Prellwitz
patent: 2081919 (1937-06-01), Gartin
patent: 2115911 (1938-05-01), Gartin
patent: 2434120 (1948-01-01), Paget
patent: 3421392 (1969-01-01), Bangerter et al.
patent: 5327979 (1994-07-01), Du et al.
patent: 6575254 (2003-06-01), Bongers-Ambrosius et al.
patent: 2004/0163832 (2004-08-01), Riedl

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