Ammunition and explosives – Shells
Reexamination Certificate
2006-05-23
2006-05-23
Price, Thomas (Department: 3643)
Ammunition and explosives
Shells
Reexamination Certificate
active
07047886
ABSTRACT:
The present invention is directed to a system for fragmenting rock obstacles and obstructions in mines. The system uses a projectile having a flat or concave nose and a detonating device that has a safety pin to prevent a striker from prematurely igniting the primer during handling of the projectile. The primer is designed to initiate a detonator which detonates an explosive charge upon impact of the projectile with the target rock. The system can include transmitters and receivers and counters to provide remote operation of projectile launch, prearming, arming and/or detonation.
REFERENCES:
patent: 1585664 (1926-05-01), Gilman
patent: 2359301 (1944-10-01), Church et al.
patent: 2725821 (1955-12-01), Coleman
patent: 2846949 (1958-08-01), Apstein et al.
patent: 3662686 (1972-05-01), Baldini
patent: 3695715 (1972-10-01), Godfrey
patent: 3721471 (1973-03-01), Bergmann et al.
patent: 3777665 (1973-12-01), Ziemba
patent: 3788230 (1974-01-01), Losfeld
patent: 3813174 (1974-05-01), Nowak et al.
patent: 3882779 (1975-05-01), Frostig
patent: 3951037 (1976-04-01), Bornand
patent: 3963275 (1976-06-01), Godfrey et al.
patent: 4126955 (1978-11-01), Coffield et al.
patent: 4351503 (1982-09-01), Drori
patent: 4388868 (1983-06-01), Frostig
patent: 4406430 (1983-09-01), Krammer et al.
patent: 4413567 (1983-11-01), Frostig
patent: 4748912 (1988-06-01), Garcia
patent: 4803928 (1989-02-01), Kramer et al.
patent: 4964341 (1990-10-01), Hebert
patent: 5031538 (1991-07-01), Dufrane et al.
patent: 5081929 (1992-01-01), Mertens
patent: 5175393 (1992-12-01), Andersson
patent: 5345853 (1994-09-01), Crepin et al.
patent: 5359935 (1994-11-01), Willett
patent: 5365913 (1994-11-01), Walton
patent: 5404820 (1995-04-01), Hendrix
patent: 5429030 (1995-07-01), Tidman
patent: 5485787 (1996-01-01), Bowcutt et al.
patent: 5578783 (1996-11-01), Brandeis
patent: 5611605 (1997-03-01), McCarthy
patent: 5668341 (1997-09-01), Reynolds et al.
patent: 5677509 (1997-10-01), Potvin et al.
patent: 5731538 (1998-03-01), O'Brien et al.
patent: 6021716 (2000-02-01), Taylor
patent: 6318273 (2001-11-01), Renaud-Bezot et al.
patent: 6457416 (2002-10-01), Micke et al.
patent: 2015773 (1990-04-01), None
patent: 31 49 346 (1983-06-01), None
patent: 3533753 (1985-09-01), None
patent: 4226129 (1992-08-01), None
patent: 0 230 720 (1987-08-01), None
patent: 0 363 079 (1990-04-01), None
patent: 602632 (1992-12-01), None
patent: 568.425 (1924-03-01), None
patent: 94 3791 (1994-05-01), None
Society of Explosives Engineers, Inc. “Permissible Blasting/Underground Coal Mines,” Chapter 26, Blaster's Handbook, 17th Ed. (1998).
Watson et al.; “Demonstration of High Speed Gun and Penetrating Cone Fracture Technology”; Proposal toClimax Molybdenum Company/Henderson Mine; Oct. 1990; pp. 1-24.
Lundquist, R.; “Underground Tests of the Ream Method of Rock Fragmentation for High-Speed Tunneling”;RETC Proceedings; vol. 1; 1974; pp. 825-840.
Louie, N.; “Quasi-Continuous Explosive Concepts for Hard Rock Excavation”; Shock Hydrodynamics Division Whittaker Corporation; Jun. 1973; Final Report.
Singh, M.; “Rock Breakage by Pellet Impact”;IIT Research Institute; Dec. 24, 1969; Final Report.
European Patent Office Communication issued in European Application No. 98963767.6 dated Apr. 11, 2005, 5 pages.
Heuzé, Francois, “Rock mechanics contributions from defense programs,”Rock Mechanics, pp. 3-26, Tillerson & Wawersik (eds), 1992, Balkema, Rotterdam.
Lownds, C.M., et al, “The performance testng of permitted explosives for coal mines,”Journal of the South African Institute of Mining and Metallurgy, vol. 86, No. 10, pp. 415-423, Oct., 1986.
no author given, “Excavation of tunnels by the use of smooth-bore cannons to fire solid 10 lb concrete projectiles into the rock—REAM,”Tunnels and Tunnelling, pp. 177-180, Mar., 1973.
Gavrilovic Mihailo
Micke Brian P.
Wright Keith W.
Price Thomas
RockTek Limited
Sheridan & Ross P.C.
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