JPS5531649A - Fluld-tight system for mud hold door - Google Patents

Fluld-tight system for mud hold door

Info

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
Application number
JP10474378A
Other languages
Japanese (ja)
Other versions
JPS5940673B2 (en
Inventor
Takekata Watanabe
Norio Hirokawa
Naoki Noguchi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP10474378A priority Critical patent/JPS5940673B2/en
Publication of JPS5531649A publication Critical patent/JPS5531649A/en
Publication of JPS5940673B2 publication Critical patent/JPS5940673B2/en
Expired legal-status Critical Current

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
JP10474378A 1978-08-28 1978-08-28 Mud store door liquid tight device Expired JPS5940673B2 (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0526389Y2 (en) * 1985-11-19 1993-07-02

Cited By (4)

* Cited by examiner, † Cited by third party
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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