Apparatus for drilling colinear holes through concentric pipes

Details Apparatus for drilling colinear holes through concentric pipes Apparatus for drilling colinear holes through concentric pipes

2011-05-24

2011-05-24

Howell, Daniel W (Department: 3726)

Cutting by use of rotating axially moving tool

Processes

Bit detachable

C166S055200, C166S298000, C408S037000

Reexamination Certificate

active

07946793

ABSTRACT:
Apparatus for drilling holes through concentric pipes is provided. The apparatus clamps on the exterior pipe and contains drilling assemblies that may be used for drilling sequentially or simultaneously two colinear holes.

REFERENCES:
patent: 2877670 (1959-03-01), Allen
patent: 2890730 (1959-06-01), Gottlieb
patent: 3746459 (1973-07-01), Kindelan
patent: 4009545 (1977-03-01), Rossborough
patent: 4222687 (1980-09-01), Williams
patent: 7021381 (2006-04-01), Remedies et al.
patent: 7621321 (2009-11-01), Remedies et al.
patent: 7704020 (2010-04-01), Stengel
patent: 2006/0231291 (2006-10-01), Johannessen
patent: WO03104608 (2003-12-01), None
patent: WO2004063525 (2004-07-01), None

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