GB1392690A - Leak detector unit - Google Patents
Leak detector unitInfo
- Publication number
- GB1392690A GB1392690A GB5762573A GB5762573A GB1392690A GB 1392690 A GB1392690 A GB 1392690A GB 5762573 A GB5762573 A GB 5762573A GB 5762573 A GB5762573 A GB 5762573A GB 1392690 A GB1392690 A GB 1392690A
- Authority
- GB
- United Kingdom
- Prior art keywords
- workpiece
- pressure
- regulator
- test pressure
- switch
- 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.)
- Expired
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
-
- 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
- G01M3/32—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 containers, e.g. radiators
- G01M3/3236—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 containers, e.g. radiators by monitoring the interior space of the containers
- G01M3/3254—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 containers, e.g. radiators by monitoring the interior space of the containers using a flow detector
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
1392690 Leak testing CROSS CO 12 Dec 1973 [8 Jan 1973] 57625/73 Addition to 1338218 Heading G1S In testing a workpiece 350 for leaks, the workpiece is rapidly pre-filled for a predetermined time and the flow-rate required to maintain a test pressure in the workpiece measured, the prefilling being carried out in first and second stages using pressure sources at a high pressure and at the test pressure respectively, and switching between the first and second stages being carried out automatically by a pressure switch 3 PS. In the apparatus shown, which is a modification of the embodiment of Figs. 1 to 5 (not shown) of the parent Specification, the high pressure source is provided by a regulator 338 and the test pressure source by regulator 341. At the commencement of pre-filling, the workpiece 350 is connected to regulator 338 via line 301, and valves 302, 351 and 356. When a pressure just below the test pressure is attained in the workpiece, pressure switch 3 PS operates and energizes solenoid 4. This causes valves 302 to shift and connect the workpiece to regulator 341. At the end of the predetermined pre-filling time, time switch 2TR (c.f. Figs.1 to 5 (not shown)) operates and shifts valve 351 to connect the workpiece to the flow measuring element 317. The remainder of the operating cycle is as described in the parent Specification.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US321691A US3872712A (en) | 1971-11-18 | 1973-01-08 | Dynamic air flow comparator system |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1392690A true GB1392690A (en) | 1975-04-30 |
Family
ID=23251618
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5762573A Expired GB1392690A (en) | 1973-01-08 | 1973-12-12 | Leak detector unit |
Country Status (7)
Country | Link |
---|---|
JP (1) | JPS5237799B2 (en) |
BR (1) | BR7400055D0 (en) |
CA (1) | CA1010726A (en) |
FR (1) | FR2213496B1 (en) |
GB (1) | GB1392690A (en) |
IN (1) | IN140395B (en) |
IT (1) | IT1005247B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016063071A1 (en) * | 2014-10-24 | 2016-04-28 | Easytesters Limited | Leak testing method and apparatus for use with heat exchangers |
CN113916464A (en) * | 2021-09-30 | 2022-01-11 | 广东利元亨智能装备股份有限公司 | Method for detecting gas leakage of electric pile, method for detecting external leakage and method for detecting gas tightness of electric pile |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT946298B (en) * | 1971-11-18 | 1973-05-21 | Cross Co | DYNAMIC AIRFLOW COMPARATOR SYSTEM |
-
1973
- 1973-11-09 CA CA185,489A patent/CA1010726A/en not_active Expired
- 1973-11-14 IN IN2507/CAL/1973A patent/IN140395B/en unknown
- 1973-12-12 GB GB5762573A patent/GB1392690A/en not_active Expired
- 1973-12-20 IT IT84615/73A patent/IT1005247B/en active
-
1974
- 1974-01-07 JP JP49005195A patent/JPS5237799B2/ja not_active Expired
- 1974-01-07 BR BR55/74A patent/BR7400055D0/en unknown
- 1974-01-08 FR FR7400619A patent/FR2213496B1/fr not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016063071A1 (en) * | 2014-10-24 | 2016-04-28 | Easytesters Limited | Leak testing method and apparatus for use with heat exchangers |
GB2547370A (en) * | 2014-10-24 | 2017-08-16 | Easytesters Ltd | Leak testing method and apparatus for use with heat exchangers |
US10458879B2 (en) | 2014-10-24 | 2019-10-29 | Proactive Analytics Limited | Leak testing method and apparatus for use with heat exchangers |
CN113916464A (en) * | 2021-09-30 | 2022-01-11 | 广东利元亨智能装备股份有限公司 | Method for detecting gas leakage of electric pile, method for detecting external leakage and method for detecting gas tightness of electric pile |
CN113916464B (en) * | 2021-09-30 | 2023-11-17 | 广东利元亨智能装备股份有限公司 | Pile gas leakage detection method and airtight detection method thereof |
Also Published As
Publication number | Publication date |
---|---|
DE2400637A1 (en) | 1974-07-11 |
JPS49118487A (en) | 1974-11-12 |
FR2213496B1 (en) | 1978-10-27 |
BR7400055D0 (en) | 1974-08-15 |
IT1005247B (en) | 1976-08-20 |
FR2213496A1 (en) | 1974-08-02 |
DE2400637B2 (en) | 1977-05-05 |
JPS5237799B2 (en) | 1977-09-24 |
IN140395B (en) | 1976-10-30 |
CA1010726A (en) | 1977-05-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
PCNP | Patent ceased through non-payment of renewal fee |