Pressure-resistant container and exploration machine provided with the same

Patent metadata

Field	Value
Publication number	US-9403584-B2
Application number	US-201314646613-A
Country	US
Kind code	B2
Filing date	May 20, 2013
Priority date	Nov 21, 2012
Publication date	Aug 2, 2016
Grant date	Aug 2, 2016

Abstract

There are provide a pressure-resistant container which is less likely to be damaged due to stress concentration even in deep seas of 1000 m or deeper below sea level, and an exploration machine provided with the same. A pressure-resistant container includes a cylindrical first outer shell member; and substantially hemispherical second outer shell members which are respectively connected to both ends of the first outer shell member, and is constructed by selecting materials so that a Young's modulus E2 of a base material which constitutes the second outer shell members is smaller than a Young's modulus E1 of a base material which constitutes the first outer shell member.

First claim

The invention claimed is:

1. A pressure-resistant container, comprising:
a first outer shell member composed of a cylindrical member; and
second outer shell members composed of a substantially hemispherical member;
wherein
the second outer shell members have a common axis with the first outer shell member, the second outer shell members being respectively connected to both ends of the first outer shell member in such a state that the second outer shell members are disposed so as to be convex in a direction of being separated from the first outer shell member, and
a Young's modulus E2 of a base material which constitutes the second outer shell members is smaller than a Young's modulus E1 of a base material which constitutes the first outer shell member (E2<E1), and
a thickness of each of the second outer shell members is greater than a thickness of the first outer shell member.

2. The pressure-resistant container according to claim 1 , wherein the second outer shell members have a convex portion which is fitted to an inner circumference of an end portion of the first outer shell member.

3. The pressure-resistant container according to claim 1 , wherein the second outer shell members have an annular flange portion which protrudes inwardly in a radial direction thereof from a part of the second outer shell members which part is connected to an end portion of the first outer shell member.

4. The pressure-resistant container according to claim 3 , wherein a part of an inner circumferential surface of the second outer shell members which part is continuous to the flange portion, has a cylindrical smooth surface which has a common axis with the flange portion.

5. The pressure-resistant container according to claim 1 , wherein the first outer shell member is made of ceramics, and the second outer shell members are made of metal.

6. The pressure-resistant container according to claim 5 , wherein the first outer shell member is composed of a plurality of cylindrical members which are connected with each other in an axial direction thereof.

7. An exploration machine, comprising:
the pressure-resistant container according to claim 1 ; and
an exploration module which is housed in the pressure-resistant container.

Assignees

• Kyocera Corp
• Japan Agency For Marine-Earth Science And Tech

Inventors

• Yoshida Masao
• Ookubo Naoyuki
• Asakawa Kenichi
• Maeda Yosaku

Classifications

• B65D15/02

  of curved, or partially curved, cross-section, e.g. cans, drums · CPC title

• B65D81/02

  specially adapted to protect contents from mechanical damage {(containers of polygonal cross-section provided with internal protecting elements for contents B65D5/50; devices to locate articles in containers B65D25/10)} · CPC title

• B63G8/04

  Superstructure · CPC title

• G01V11/00

  Prospecting or detecting by methods combining techniques covered by two or more of main groups G01V1/00 - G01V9/00 · CPC title

• G01V3/40

  specially adapted for measuring magnetic field characteristics of the earth · CPC title