JPS5223716A - Open-and-shut device door for vacuuming - Google Patents

Open-and-shut device door for vacuuming

Info

Publication number
JPS5223716A
JPS5223716A JP10031375A JP10031375A JPS5223716A JP S5223716 A JPS5223716 A JP S5223716A JP 10031375 A JP10031375 A JP 10031375A JP 10031375 A JP10031375 A JP 10031375A JP S5223716 A JPS5223716 A JP S5223716A
Authority
JP
Japan
Prior art keywords
open
vacuuming
door
device door
shut device
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.)
Pending
Application number
JP10031375A
Other languages
Japanese (ja)
Inventor
Kazuo Tanabe
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.)
SHIOYA SEISAKUSHIYO KK
SHIOYA SEISAKUSHO KK
Original Assignee
SHIOYA SEISAKUSHIYO KK
SHIOYA SEISAKUSHO KK
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 SHIOYA SEISAKUSHIYO KK, SHIOYA SEISAKUSHO KK filed Critical SHIOYA SEISAKUSHIYO KK
Priority to JP10031375A priority Critical patent/JPS5223716A/en
Publication of JPS5223716A publication Critical patent/JPS5223716A/en
Pending legal-status Critical Current

Links

Landscapes

  • Pressure Vessels And Lids Thereof (AREA)

Abstract

PURPOSE: It is purposed to rationalize troubles to open a door, and required rorce to press a packing on a door when closing a door airtightly is released during vacuumed period.
COPYRIGHT: (C)1977,JPO&Japio
JP10031375A 1975-08-19 1975-08-19 Open-and-shut device door for vacuuming Pending JPS5223716A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10031375A JPS5223716A (en) 1975-08-19 1975-08-19 Open-and-shut device door for vacuuming

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10031375A JPS5223716A (en) 1975-08-19 1975-08-19 Open-and-shut device door for vacuuming

Publications (1)

Publication Number Publication Date
JPS5223716A true JPS5223716A (en) 1977-02-22

Family

ID=14270676

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10031375A Pending JPS5223716A (en) 1975-08-19 1975-08-19 Open-and-shut device door for vacuuming

Country Status (1)

Country Link
JP (1) JPS5223716A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3087644A (en) * 1962-02-06 1963-04-30 George W Hill Closure plate for airplane spray tank

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3087644A (en) * 1962-02-06 1963-04-30 George W Hill Closure plate for airplane spray tank

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