NL65204C - - Google Patents

Info

Publication number
NL65204C
NL65204C NL65204DA NL65204C NL 65204 C NL65204 C NL 65204C NL 65204D A NL65204D A NL 65204DA NL 65204 C NL65204 C NL 65204C
Authority
NL
Netherlands
Application number
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.)
Publication date
Application granted granted Critical
Publication of NL65204C publication Critical patent/NL65204C/xx

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
    • G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
    • G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
    • G01M3/2807—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes
    • G01M3/2815—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes using pressure measurements

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Examining Or Testing Airtightness (AREA)
NL65204D 1946-09-23 NL65204C (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL2612037X 1946-09-23

Publications (1)

Publication Number Publication Date
NL65204C true NL65204C (fr) 1949-09-15

Family

ID=19875023

Family Applications (2)

Application Number Title Priority Date Filing Date
NL65204D NL65204C (fr) 1946-09-23
NL65203D NL65203C (fr) 1946-09-23

Family Applications After (1)

Application Number Title Priority Date Filing Date
NL65203D NL65203C (fr) 1946-09-23

Country Status (4)

Country Link
US (1) US2612037A (fr)
BE (1) BE475260A (fr)
FR (1) FR952056A (fr)
NL (2) NL65203C (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2788658A (en) * 1951-12-01 1957-04-16 Ericsson Telefon Ab L M Apparatus for indicating and localizing leaks in gas-pressure protected cables
US2792708A (en) * 1952-11-22 1957-05-21 Texas Co Testing underground storage cavities
US2727383A (en) * 1953-04-21 1955-12-20 Gen Air Products Corp Method and apparatus for testing and cleaning pipe lines

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1196828A (en) * 1916-06-19 1916-09-05 Christopher Weatherson Method of and apparatus for detecting and measuring leakage in pipelines.
US1422089A (en) * 1919-03-22 1922-07-11 Richard L Dezendorf Means for and method of proving gas meters
US1706567A (en) * 1925-05-30 1929-03-26 Dezendorf Richard Lee Testing apparatus
US1985348A (en) * 1931-12-30 1934-12-25 American Telephone & Telegraph Method of locating cable sheath defects
GB528072A (en) * 1939-04-26 1940-10-22 Callenders Cable & Const Co An improved method and means for the repair of pipe lines and electric cables
US2374154A (en) * 1942-05-14 1945-04-17 Moore Products Co Comparator gauge
US2446632A (en) * 1944-01-31 1948-08-10 Jack & Heintz Prec Ind Inc Air pressure gauge
US2449556A (en) * 1946-07-25 1948-09-21 Henry B Kirkley Differential leakage indicator

Also Published As

Publication number Publication date
FR952056A (fr) 1949-11-09
NL65203C (fr) 1949-09-15
BE475260A (fr) 1947-09-30
US2612037A (en) 1952-09-30

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