ES411644A1 - A safety device sensitive to the pressure, to detect the intrusion in a some area. (Machine-translation by Google Translate, not legally binding) - Google Patents
A safety device sensitive to the pressure, to detect the intrusion in a some area. (Machine-translation by Google Translate, not legally binding)Info
- Publication number
- ES411644A1 ES411644A1 ES411644A ES411644A ES411644A1 ES 411644 A1 ES411644 A1 ES 411644A1 ES 411644 A ES411644 A ES 411644A ES 411644 A ES411644 A ES 411644A ES 411644 A1 ES411644 A1 ES 411644A1
- Authority
- ES
- Spain
- Prior art keywords
- pressure
- flexible tube
- defect
- fluid
- change
- 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
Landscapes
- Examining Or Testing Airtightness (AREA)
Abstract
A pressure-sensitive safety apparatus for detecting intrusion in a certain area, comprising: a pressure sensor, including the safety apparatus, a flexible tube member filled with pressure-responsive fluid, pressure transducing means operatively associated with said fluid of said hose member to generate a signal indicative of changes in fluid pressure in said hose, and pressure sensing circuit means operatively connected to said pressure transducer means and responsive to said signal, characterized in that it comprises means for checking the integrity of the flexible tube operatively associated with said fluid of said flexible tube, including the verification means, means located in close relation with said pressure transducer means for transmitting a predetermined pressure change pulse. In said fluid, in order to determine the presence or absence of defects in the flexible tube corresponding to ruptures of the flexible tube that result in fluid leaks and the formation of gas pockets in the flexible tube member, said pressure change being reflected back from the far end of said flexible tube until said pressure transducer means in the absence of a defect of the flexible tube, said pressure change being again reflected from a location of the flexible tube corresponding to a defect of the flexible tube to said pressure transducer means in the presence of a defect of the flexible tube and a gas bag and flexible tube defect detection circuit means operatively connected to said pressure transducer means to produce a first manifestation in response to a change in reflected pressure indicative of the absence of a tube defect and a second manifestation in response to a change in reflected pressure, indicative of the presence of a defect of the flexible tube. (Machine-translation by Google Translate, not legally binding)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES411644A ES411644A1 (en) | 1973-02-15 | 1973-02-15 | A safety device sensitive to the pressure, to detect the intrusion in a some area. (Machine-translation by Google Translate, not legally binding) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES411644A ES411644A1 (en) | 1973-02-15 | 1973-02-15 | A safety device sensitive to the pressure, to detect the intrusion in a some area. (Machine-translation by Google Translate, not legally binding) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES411644A1 true ES411644A1 (en) | 1976-06-01 |
Family
ID=8463421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES411644A Expired ES411644A1 (en) | 1973-02-15 | 1973-02-15 | A safety device sensitive to the pressure, to detect the intrusion in a some area. (Machine-translation by Google Translate, not legally binding) |
Country Status (1)
| Country | Link |
|---|---|
| ES (1) | ES411644A1 (en) |
-
1973
- 1973-02-15 ES ES411644A patent/ES411644A1/en not_active Expired
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