Drill

Details Drill Drill

2002-11-27

2008-03-18

Carter, Monica (Department: 3722)

Cutting by use of rotating axially moving tool

With work-engaging structure other than tool or tool-support

Frictionally engaging sides of opening in work

C408S124000, C408S130000, C408S702000

Reexamination Certificate

active

07344341

ABSTRACT:
A portable power drill having an automatic drilling cycle for feeding a rotating tool bit to a workpiece to effect the desired operation. The drill uses a rotary gerotor pump to pump hydraulic fluid used in its system, and pressurized air to operate the hydraulic pump. The drill has a clamping assembly which clamps the unit on a workpiece before the drill bit is advanced toward the workpiece. The drill also has an integral drill spindle-planet carrier area which adds to its operability and reliability.

REFERENCES:
patent: 2633709 (1953-04-01), Dales
patent: 2910895 (1959-11-01), Winslow
patent: 4453868 (1984-06-01), Winslow
patent: 4545748 (1985-10-01), Middlekauff
patent: 4594030 (1986-06-01), Weigel, Jr.
patent: 4824347 (1989-04-01), Dlugokecki
patent: 4842078 (1989-06-01), Hansson
patent: 4881435 (1989-11-01), Hansson

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