The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Oct. 25, 2011

Filed:

Mar. 06, 2006
Applicants:

Shuzo Fujiwara, Tsukuba, JP;

Takehiro Matsunaga, Tsukuba, JP;

Kiyoshi Asahina, Kobe, JP;

Kenji Tamai, Kobe, JP;

Kenji Koide, Kobe, JP;

Katsuo Kurose, Kobe, JP;

Inventors:

Shuzo Fujiwara, Tsukuba, JP;

Takehiro Matsunaga, Tsukuba, JP;

Kiyoshi Asahina, Kobe, JP;

Kenji Tamai, Kobe, JP;

Kenji Koide, Kobe, JP;

Katsuo Kurose, Kobe, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F42B 33/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

An object of the present invention is to improve durability of a pressure vessel for blasting an article to be treated such as hazardous substance or explosive therein. The pressure vessel, means for achieving the object, has an external vesseland an internal vesselinstalled in the external vessel. The external vesselhas a strength for retaining pressure caused by blasting the article. The internal vesselreceives fragments of the treated articleto protect the external vesselagainst the fragments. The internal vesselpreferably covers almost entire internal surface of the external vessel


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