JPS5531649A - Fluld-tight system for mud hold door - Google Patents
Fluld-tight system for mud hold doorInfo
- Publication number
- JPS5531649A JPS5531649A JP10474378A JP10474378A JPS5531649A JP S5531649 A JPS5531649 A JP S5531649A JP 10474378 A JP10474378 A JP 10474378A JP 10474378 A JP10474378 A JP 10474378A JP S5531649 A JPS5531649 A JP S5531649A
- Authority
- JP
- Japan
- Prior art keywords
- fluid
- pressure
- piston
- seal material
- ship
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
- Sealing Devices (AREA)
Abstract
PURPOSE: To perform fluid-tightness in such a way that a fluid pressure seal material of a sliding door at the bottom part of a dredger, etc. is contracted by a piston cylinder which works with use of water pressure at the bottom of the ship.
CONSTITUTION: A variable pressure cylinder 13 to perform hermetical seal, non- seal of a fluid-pressure seal material 5 of a sliding door at the bottom part of a dredger, etc. is operated by a thin rod 14 of a working cylinder 11. When hermetically sealing, first valve 17 of an opening bore 24 at the bottom of the ship is closed, water pressure at the bottom of the ship affects through the other opening bore 23 the side of a thick rod 16 of a piston 51 in the working cylinder 11, the variable pressure cylincer 13 is moved to the right side as shown in the figure, the fluid-pressure seal material 5 is expanded. When non-sealing, the first valve 17 is opened, diametral difference of right and left rods 14, 16 of the piston 51 of the working cylinder 11 moves the piston 51 to left as shown in the figure, and contracts the fluid-pressure seal material 5.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10474378A JPS5940673B2 (en) | 1978-08-28 | 1978-08-28 | Mud store door liquid tight device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10474378A JPS5940673B2 (en) | 1978-08-28 | 1978-08-28 | Mud store door liquid tight device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5531649A true JPS5531649A (en) | 1980-03-06 |
JPS5940673B2 JPS5940673B2 (en) | 1984-10-02 |
Family
ID=14388967
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10474378A Expired JPS5940673B2 (en) | 1978-08-28 | 1978-08-28 | Mud store door liquid tight device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5940673B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57165597U (en) * | 1981-04-13 | 1982-10-19 | ||
JPS58134529A (en) * | 1982-02-05 | 1983-08-10 | Usac Electronics Ind Co Ltd | Fault detecting system of transistor |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0526389Y2 (en) * | 1985-11-19 | 1993-07-02 |
-
1978
- 1978-08-28 JP JP10474378A patent/JPS5940673B2/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57165597U (en) * | 1981-04-13 | 1982-10-19 | ||
JPS619835Y2 (en) * | 1981-04-13 | 1986-03-28 | ||
JPS58134529A (en) * | 1982-02-05 | 1983-08-10 | Usac Electronics Ind Co Ltd | Fault detecting system of transistor |
JPH0233210B2 (en) * | 1982-02-05 | 1990-07-26 | Pfu Ltd |
Also Published As
Publication number | Publication date |
---|---|
JPS5940673B2 (en) | 1984-10-02 |
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