JPS5719638A - Inspection for air leak of wrist watch - Google Patents

Inspection for air leak of wrist watch

Info

Publication number
JPS5719638A
JPS5719638A JP9399280A JP9399280A JPS5719638A JP S5719638 A JPS5719638 A JP S5719638A JP 9399280 A JP9399280 A JP 9399280A JP 9399280 A JP9399280 A JP 9399280A JP S5719638 A JPS5719638 A JP S5719638A
Authority
JP
Japan
Prior art keywords
output
air
comparator
brought
signal voltage
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
JP9399280A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6239893B2 (enExample
Inventor
Eichiyousei Yamagata
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.)
Citizen Watch Co Ltd
Original Assignee
Citizen Watch Co 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 Citizen Watch Co Ltd filed Critical Citizen Watch Co Ltd
Priority to JP9399280A priority Critical patent/JPS5719638A/ja
Publication of JPS5719638A publication Critical patent/JPS5719638A/ja
Publication of JPS6239893B2 publication Critical patent/JPS6239893B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/36—Investigating fluid-tightness of structures by using fluid or vacuum by detecting change in dimensions of the structure being tested

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Examining Or Testing Airtightness (AREA)
JP9399280A 1980-07-11 1980-07-11 Inspection for air leak of wrist watch Granted JPS5719638A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9399280A JPS5719638A (en) 1980-07-11 1980-07-11 Inspection for air leak of wrist watch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9399280A JPS5719638A (en) 1980-07-11 1980-07-11 Inspection for air leak of wrist watch

Publications (2)

Publication Number Publication Date
JPS5719638A true JPS5719638A (en) 1982-02-01
JPS6239893B2 JPS6239893B2 (enExample) 1987-08-25

Family

ID=14097891

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9399280A Granted JPS5719638A (en) 1980-07-11 1980-07-11 Inspection for air leak of wrist watch

Country Status (1)

Country Link
JP (1) JPS5719638A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5735288U (enExample) * 1980-08-08 1982-02-24

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK1320738T3 (da) * 2000-09-26 2009-06-15 Martin Lehmann Fremgangsmåde og apparat til tæthedsprövning af lukkede beholdere

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5735288U (enExample) * 1980-08-08 1982-02-24

Also Published As

Publication number Publication date
JPS6239893B2 (enExample) 1987-08-25

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