Electric resistance heating devices – Heating devices – Radiant heater
Reexamination Certificate
2005-06-28
2005-06-28
Jeffery, John A. (Department: 3742)
Electric resistance heating devices
Heating devices
Radiant heater
C299S014000, C175S016000, C241S001000, C225S093500
Reexamination Certificate
active
06912356
ABSTRACT:
A method of fracturing or breaking rock includes the step of directing high intensity white light (radiation) at the rock to induce thermal stress sufficient to fracture the rock. The intensity of the energy source may be varied to control the manner in which the rock fractures. An approach for generating high intensity white light includes an elongate arc chamber and an elongate concave reflector. The arc chamber and reflector may be shielded from airborne particulate matter by an air shield or a rotating or reciprocating translucent shield.
REFERENCES:
patent: 914636 (1909-03-01), Case
patent: 1679857 (1928-08-01), France
patent: 2703360 (1955-03-01), Lipscomb
patent: 3520455 (1970-07-01), Smith
patent: 3556366 (1971-01-01), Kim
patent: 3589883 (1971-06-01), Dear
patent: 3621198 (1971-11-01), Herbrich et al.
patent: 3695497 (1972-10-01), Dear
patent: 3751657 (1973-08-01), Sangiamo et al.
patent: 3797757 (1974-03-01), Marshall
patent: 3826537 (1974-07-01), Boyd et al.
patent: 3830999 (1974-08-01), Yoshizumi et al.
patent: 3860903 (1975-01-01), Steenhoven
patent: 4027185 (1977-05-01), Nodwell et al.
patent: 4109144 (1978-08-01), Vidmar
patent: 4201921 (1980-05-01), McCorkle
patent: 4700102 (1987-10-01), Camm et al.
patent: 4937490 (1990-06-01), Camm et al.
patent: 5084604 (1992-01-01), Dekker et al.
patent: 5336842 (1994-08-01), Massholder et al.
patent: 5561735 (1996-10-01), Camm
patent: 5818649 (1998-10-01), Anderson
patent: 5966836 (1999-10-01), Valdez, III et al.
patent: 6226454 (2001-05-01), Couture
patent: 6435555 (2002-08-01), Seamon et al.
patent: 1015817 (1977-08-01), None
patent: 397 236 (1990-02-01), None
patent: 61 242273 (1986-10-01), None
patent: 01137515 (1987-11-01), None
patent: 83956 (1979-01-01), None
patent: 829931 (1979-07-01), None
Clark, George B., “Rock Disintegration—the Key to Mining Progress”, Mining Eng. V. 23, No. 3, pp. 47-51 Mar., 1971.
Bennett Jones LLP
Diversified Industries Ltd.
Jeffery John A.
LandOfFree
Method and apparatus for fracturing brittle materials by... 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 fracturing brittle materials by..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for fracturing brittle materials by... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3485927