FR2278110A1 - Dispositif pour la mesure du degre d'etancheite aux gaz de boites de montres - Google Patents

Dispositif pour la mesure du degre d'etancheite aux gaz de boites de montres

Info

Publication number
FR2278110A1
FR2278110A1 FR7519797A FR7519797A FR2278110A1 FR 2278110 A1 FR2278110 A1 FR 2278110A1 FR 7519797 A FR7519797 A FR 7519797A FR 7519797 A FR7519797 A FR 7519797A FR 2278110 A1 FR2278110 A1 FR 2278110A1
Authority
FR
France
Prior art keywords
tightness
measuring
degree
gas
watch cases
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
FR7519797A
Other languages
English (en)
Other versions
FR2278110B1 (fr
Inventor
Michel Ratajski
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.)
Omega Louis Brandt and Frere SA
Original Assignee
Omega Louis Brandt and Frere SA
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 Omega Louis Brandt and Frere SA filed Critical Omega Louis Brandt and Frere SA
Publication of FR2278110A1 publication Critical patent/FR2278110A1/fr
Application granted granted Critical
Publication of FR2278110B1 publication Critical patent/FR2278110B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04D—APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
    • G04D7/00—Measuring, counting, calibrating, testing or regulating apparatus
    • G04D7/006—Testing apparatus for complete clockworks with regard to external influences or general good working
    • G04D7/007—Testing apparatus for complete clockworks with regard to external influences or general good working with regard to the sealing of the case

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Examining Or Testing Airtightness (AREA)
  • Measuring Fluid Pressure (AREA)
FR7519797A 1974-07-12 1975-06-13 Dispositif pour la mesure du degre d'etancheite aux gaz de boites de montres Granted FR2278110A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH961374A CH586931B5 (fr) 1974-07-12 1974-07-12

Publications (2)

Publication Number Publication Date
FR2278110A1 true FR2278110A1 (fr) 1976-02-06
FR2278110B1 FR2278110B1 (fr) 1977-07-22

Family

ID=4353806

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7519797A Granted FR2278110A1 (fr) 1974-07-12 1975-06-13 Dispositif pour la mesure du degre d'etancheite aux gaz de boites de montres

Country Status (5)

Country Link
US (1) US3978710A (fr)
JP (1) JPS5131280A (fr)
CH (2) CH586931B5 (fr)
FR (1) FR2278110A1 (fr)
GB (1) GB1464825A (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5718711A (en) * 1980-07-10 1982-01-30 Toyo Soda Mfg Co Ltd Preparation of copolymeric emulsion
DE3762460D1 (de) * 1986-03-22 1990-05-31 Nestle Sa Verfahren und vorrichtung zum feststellen von undichtigkeiten bei behaeltnissen.
US4766763A (en) * 1987-05-05 1988-08-30 Kulite Semiconductor Products, Inc. Gas leak detection apparatus and methods
DE4042421A1 (de) * 1990-06-02 1992-04-30 Martin Lehmann Verfahren und vorrichtung zum pruefen des volumens von behaeltnissen
US20100212402A1 (en) * 2009-02-14 2010-08-26 Enerize Corporation Method and apparatus for precision non-destructive non-contact control of super small differences of pressure
US9423771B2 (en) * 2011-12-09 2016-08-23 Cartier International Ag Method for placing a watch case under a protective atmosphere

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2924965A (en) * 1957-06-28 1960-02-16 Foster M Poole Leakage determining apparatus
US3158028A (en) * 1960-09-19 1964-11-24 Industrial Nucleonics Corp Physical condition measuring systems

Also Published As

Publication number Publication date
GB1464825A (en) 1977-02-16
CH586931B5 (fr) 1977-04-15
JPS5131280A (en) 1976-03-17
US3978710A (en) 1976-09-07
CH961374A4 (fr) 1976-10-29
FR2278110B1 (fr) 1977-07-22

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Legal Events

Date Code Title Description
ST Notification of lapse