Boring or penetrating the earth – Bit or bit element – Impact or percussion type
Reexamination Certificate
2005-07-12
2005-07-12
Neuder, William (Department: 3672)
Boring or penetrating the earth
Bit or bit element
Impact or percussion type
C175S418000
Reexamination Certificate
active
06915867
ABSTRACT:
A drill bit that has a drill bit body with a side wall and opposite ends. A distal one of the opposite ends of the drill bit body receives a cutting insert. The drill bit body contains at least two helical debris ports in the side wall thereof. The drill bit body further contains a helical scallop that corresponds to each one of the helical debris ports. Each one of the helical scallops surrounds so as to define the periphery of its corresponding one of the helical debris ports.
REFERENCES:
patent: 2578593 (1951-12-01), Phipps
patent: 3163246 (1964-12-01), Vagins et al.
patent: 4189013 (1980-02-01), Adams et al.
patent: 4190128 (1980-02-01), Emmerich
patent: 4216832 (1980-08-01), Stephenson et al.
patent: 4330044 (1982-05-01), Orr et al.
patent: 4352400 (1982-10-01), Grappendorf et al.
patent: 4446936 (1984-05-01), Sarin et al.
patent: 4488609 (1984-12-01), Sarin
patent: 4492278 (1985-01-01), Leighton
patent: 4515230 (1985-05-01), Means et al.
patent: 4527931 (1985-07-01), Sarin
patent: 4550791 (1985-11-01), Isakov
patent: 4605079 (1986-08-01), Leibee et al.
patent: 4712626 (1987-12-01), Shaw
patent: 5180022 (1993-01-01), Brady
patent: 5220967 (1993-06-01), Monyak
patent: 5287937 (1994-02-01), Sollami et al.
patent: 5303787 (1994-04-01), Brady
patent: 5400861 (1995-03-01), Sheirer
patent: 5429199 (1995-07-01), Sheirer et al.
patent: 5452628 (1995-09-01), Montgomery et al.
patent: 5458210 (1995-10-01), Sollami
patent: 6145606 (2000-11-01), Haga
patent: 6595305 (2003-07-01), Dunn et al.
patent: 6684968 (2004-02-01), Bise et al.
GE Carboloy Mining Tools Catalog No. MT7-241, Effective Sep. 1, 1977.
Sitler, “Manufactured Diamond and Enhanced Mining Tool Performance”, Soc. of Mining Engineers AIME.
Rotary and Rotary Percussive Drilling Tools, WIMET Mining Catalog (unknown date).
Kennametal “The Mining Tool Authority” Catalog 2000.
International Search Report of PCT/US2004/018289, mailed Oct. 5, 2004.
Kennametal Inc.
Neuder William
Smith Matthew W.
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