Electric heating – Heating devices – With heating unit structure
Reexamination Certificate
2005-10-18
2005-10-18
Evans, Robin O. (Department: 3742)
Electric heating
Heating devices
With heating unit structure
C219S603000, C228S141100
Reexamination Certificate
active
06956187
ABSTRACT:
A steel plate splicing facility includes, a steel plate heating apparatus for retrieving and heating a preceding steel plate and a following steel plate, and a shear-joining apparatus for clamping a tail end portion of the preceding steel plate and a leading end portion of the following steel plate in an overlapping condition by a die and a clamp and shearing them with a punch, such that surfaces of the tail end portion and the leading end portion are newly formed and brought in contact with each other in order to them. The shear-joining apparatus joins the preceding and following steel plates at a temperature equal to or higher than 350° C. and at a percentage clearance c/t equal to or lower than 5%, c/t being defined by c/t=D/(t1+t2)×100 where D represents a distance between the punch and the die, and t1and t2represent a thickness of respective steel plates.
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Hashimoto Ritsuo
Hashimoto Shoichi
Hayashi Kanji
Hirai Etsurou
Kawamizu Tsutomu
Birch & Stewart Kolasch & Birch, LLP
Evans Robin O.
Fastovsky Leonid M
Mitsubishi Heavy Industries Ltd.
Mitsubishi-Hitachi Metals Machinery, Inc.
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