Boring or penetrating the earth – Processes
Reexamination Certificate
2006-01-12
2008-11-04
Bomar, Shane (Department: 3676)
Boring or penetrating the earth
Processes
C175S262000, C175S394000, C175S257000, C405S239000, C165S045000
Reexamination Certificate
active
07445057
ABSTRACT:
A drill head has a domed leading face and carries cutting teeth. A tubular drill string can be used to drive the head into the ground. An off-center aperture communicates with the bore of the string, by means of a connecting passage, which defines an oblique cone. During drilling, a flushing medium can be pumped down the bore and out through the aperture. As the drill string and head are withdrawn, an elongate member can be introduced down the bore, out through the aperture, to be left in the passage drilled by the head. The form of the mouths and connecting passage avoid the elongate member encountering any discontinuities which would prevent it leaving the head. The elongate member could be reinforcing bar for a cast-in-situ pile, or part of a ground loop for a ground heat energy system.
REFERENCES:
patent: 981306 (1911-01-01), Pollock
patent: 1647240 (1927-11-01), McDonald
patent: 2264617 (1941-12-01), Carpenter et al.
patent: 2953354 (1960-09-01), Williams, Jr.
patent: 3729057 (1973-04-01), Werner
patent: 3941197 (1976-03-01), Stinson
patent: 4168755 (1979-09-01), Willis
patent: 4362217 (1982-12-01), Fletcher
patent: 4531596 (1985-07-01), Kleine
patent: 4579668 (1986-04-01), Messenger
patent: 4691789 (1987-09-01), Richards et al.
patent: 4741389 (1988-05-01), Smith
patent: 5052502 (1991-10-01), Jurgens et al.
patent: 5147852 (1992-09-01), Cowan et al.
patent: 6368021 (2002-04-01), Strong et al.
patent: 6478512 (2002-11-01), Sherwood
patent: 6592300 (2003-07-01), Yang et al.
patent: 6978849 (2005-12-01), Sherwood
patent: 06323078 (1994-11-01), None
“Eurodrill Drilling and Casing Systems”, Eurodrill, Derbyshire, England, 16 pages, undated.
Bomar Shane
Global Innovations, LLC
Thompson & Gustavson L.L.P.
LandOfFree
Method and apparatus for introducing elongate members into... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for introducing elongate members into..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for introducing elongate members into... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4028818