GB1418011A - Water-actuated electrical actuator - Google Patents
Water-actuated electrical actuatorInfo
- Publication number
- GB1418011A GB1418011A GB2599772A GB2599772A GB1418011A GB 1418011 A GB1418011 A GB 1418011A GB 2599772 A GB2599772 A GB 2599772A GB 2599772 A GB2599772 A GB 2599772A GB 1418011 A GB1418011 A GB 1418011A
- Authority
- GB
- United Kingdom
- Prior art keywords
- water
- switch
- amplifier
- coil
- electrodes
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 4
- 238000010304 firing Methods 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000012216 screening Methods 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
Landscapes
- Amplifiers (AREA)
Abstract
1418011 Water actuated switching circuits WALTER KIDDE CO Ltd 28 June 1973 [2 June 1972 31 Oct 1972] 25997/72 and 50217/72 Heading H2H A water actuated electrical actuator comprises spaced electrodes E 1 , E 2 , a relay including a coil C 1 enclosed in a metal screening can SC and a switch S 1 , and an amplifier T 1 , T 2 so that the relay coil is energized by the amplifier when the electrodes are immersed in water. The switch S 1 is normally open to disconnect a pyrotechnic cartridge firing element C 2 from supply lines 1, 2. When a manually operated switch SO is closed and the electrodes E 1 , E 2 are immersed in water a small current flows. This current is amplified by transistors T 1 , T 2 and energizes the coil C 1 thus closing the switch S 1 to energize the element C 2 which enables inflation of a life jacket or life raft. In a modification the amplifier comprises a single transistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2599772A GB1418011A (en) | 1972-06-02 | 1972-06-02 | Water-actuated electrical actuator |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2599772A GB1418011A (en) | 1972-06-02 | 1972-06-02 | Water-actuated electrical actuator |
| GB5021772 | 1972-10-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1418011A true GB1418011A (en) | 1975-12-17 |
Family
ID=26257996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2599772A Expired GB1418011A (en) | 1972-06-02 | 1972-06-02 | Water-actuated electrical actuator |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1418011A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2190254A (en) * | 1986-05-07 | 1987-11-11 | Duracell Int | Condition responsive switching circuit |
| CN112173130A (en) * | 2020-09-25 | 2021-01-05 | 中国直升机设计研究所 | Emergency floating control device and method for civil helicopter |
-
1972
- 1972-06-02 GB GB2599772A patent/GB1418011A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2190254A (en) * | 1986-05-07 | 1987-11-11 | Duracell Int | Condition responsive switching circuit |
| CN112173130A (en) * | 2020-09-25 | 2021-01-05 | 中国直升机设计研究所 | Emergency floating control device and method for civil helicopter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |