NL42950C - - Google Patents
Info
- Publication number
- NL42950C NL42950C NL42950DA NL42950C NL 42950 C NL42950 C NL 42950C NL 42950D A NL42950D A NL 42950DA NL 42950 C NL42950 C NL 42950C
- Authority
- NL
- Netherlands
Links
Classifications
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- 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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F25/00—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume
- G01F25/10—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of flowmeters
- G01F25/15—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of flowmeters specially adapted for gas meters
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- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R13/00—Arrangements for displaying electric variables or waveforms
- G01R13/04—Arrangements for displaying electric variables or waveforms for producing permanent records
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
- Time Recorders, Dirve Recorders, Access Control (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEA74345D DE620633C (de) | 1934-10-18 | 1934-10-18 | Einrichtung zum Vergleich des Zaehlerstandes an dem Hauptmesser im Lieferwerk und anden Verbrauchsmessern fuer Gas, Wasser und Elektrizitaet |
Publications (1)
Publication Number | Publication Date |
---|---|
NL42950C true NL42950C (de) | 1937-11-15 |
Family
ID=6946131
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL42950D NL42950C (de) | 1934-10-18 |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE620633C (de) |
NL (1) | NL42950C (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2807631A1 (de) * | 1978-02-22 | 1979-08-30 | Seba Mess Ortungstech | Verfahren zur bestimmung von undichtigkeiten von im erdboden verlegten wasserleitungen |
AT374593B (de) * | 1978-08-02 | 1984-05-10 | Wien Stadt | Verfahren und anordnung zur mengenmaessigen erfassung von wasserverlusten in erdverlegten rohrleitungen |
DE2841674C2 (de) * | 1978-09-25 | 1983-09-22 | Heide, Gerhard, Dipl.-Ing., 4006 Erkrath | Verfahren zur Überprüfung auf Leckverluste sowie dabei verwendbarer Meßschacht |
US5267587A (en) * | 1992-04-07 | 1993-12-07 | Brown Geoffrey P | Utilities shutoff system |
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0
- NL NL42950D patent/NL42950C/xx active
-
1934
- 1934-10-18 DE DEA74345D patent/DE620633C/de not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE620633C (de) | 1935-10-24 |