Hydraulic and earth engineering – Earth treatment or control – Shoring – bracing – or cave-in prevention
Reexamination Certificate
2008-06-27
2011-11-08
Bagnell, David (Department: 3672)
Hydraulic and earth engineering
Earth treatment or control
Shoring, bracing, or cave-in prevention
C405S259100, C405S259400
Reexamination Certificate
active
08052353
ABSTRACT:
A mine roof support includes a plate having a raised portion with an opening, and a mine and roof bolt, e.g. a barrel having a drive end and an opposite second end, and wedge assembly. The plate mates with a recess in a mine roof. In one embodiment, the second end of the barrel extends through the opening in the dome into a bore hole in the mine roof. In another embodiment, a second end of the mine bolt is contoured to match and fill the inner contour of the dome. A drill bit tool used to shape the recess includes a first bit, a second bit, and a third bit between the first and second bits to drill a bore hole, enlarge the end of the bore hole to receive the second end of the mine bolt, and to drill the recess.
REFERENCES:
patent: 0654861 (1900-07-01), Tynan
patent: 3090203 (1963-05-01), Durget
patent: 4079766 (1978-03-01), Conley et al.
patent: 4095431 (1978-06-01), Hannan
patent: 4523881 (1985-06-01), Ringe
patent: 4708559 (1987-11-01), Locotos
patent: 4746248 (1988-05-01), Lillis et al.
patent: 4859118 (1989-08-01), Schaeffer
patent: 5064311 (1991-11-01), Giroux et al.
patent: 5253960 (1993-10-01), Scott
patent: 5259703 (1993-11-01), Gillespie
patent: 5511909 (1996-04-01), Calandra, Jr. et al.
patent: 5586839 (1996-12-01), Gillespie
patent: 5628587 (1997-05-01), Lesslie
patent: 5769570 (1998-06-01), Stankus et al.
patent: 5791823 (1998-08-01), Blakley et al.
patent: 5791824 (1998-08-01), Radtke
patent: 5791828 (1998-08-01), Fergusson
patent: 5919006 (1999-07-01), Calandra et al.
patent: 5934855 (1999-08-01), Osterle et al.
patent: 5954456 (1999-09-01), Bowles
patent: 6056482 (2000-05-01), Calandra, Jr. et al.
patent: 6322290 (2001-11-01), Calandra, Jr. et al.
patent: 6428243 (2002-08-01), Hutchins
patent: 6457909 (2002-10-01), Xu et al.
patent: 6619888 (2003-09-01), Calandra, Jr. et al.
patent: 6648557 (2003-11-01), Morrow et al.
patent: 6682268 (2004-01-01), Robertson, Jr. et al.
patent: 6881015 (2005-04-01), Wallstein et al.
patent: 2003/0143038 (2003-07-01), Babcock
patent: 2004/0135422 (2004-07-01), Wallstein et al.
patent: 2004/0161316 (2004-08-01), Locotos et al.
patent: 2005/0013672 (2005-01-01), Slater
Blankenship Joey B.
Brandon Demrey G.
Oldsen John G.
Stankus John C.
Bagnell David
FCI Holdings Delaware, Inc.
Fiorello Benjamin
The Webb Law Firm
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