Radiant energy – Radiation controlling means – Shielded receptacles for radioactive sources
Reexamination Certificate
2006-12-05
2009-02-03
Vanore, David A. (Department: 2881)
Radiant energy
Radiation controlling means
Shielded receptacles for radioactive sources
C072S041000, C072S042000, C376S272000
Reexamination Certificate
active
07485884
ABSTRACT:
In the metal billet to be used for hot dilation forming, a forward side with respect to the pressing direction has a quadrate section and its diagonal length is not more than an inner diameter of a container. Moreover, a backward side with respect to the pressing direction has a circular section and its diameter is substantially same as the inner diameter of the container. The metal billet is heated to a temperature suitable for press working and is set into a container for press forming. While a center of a workpiece of the metal billet is being bored by a boring punch to be operated by a pressing machine, the metal billet is hot-dilated so that a bottomed container for a cask is formed.
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Funakoshi Yoshihiko
Matsumoto Chikayuki
Matsuoka Toshihiro
Mizuno Naohiro
Ohsono Katsunari
Mitsubishi Heavy Industries Ltd.
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
Vanore David A.
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