ZA727081B - Fire alarm device - Google Patents
Fire alarm deviceInfo
- Publication number
- ZA727081B ZA727081B ZA727081A ZA727081A ZA727081B ZA 727081 B ZA727081 B ZA 727081B ZA 727081 A ZA727081 A ZA 727081A ZA 727081 A ZA727081 A ZA 727081A ZA 727081 B ZA727081 B ZA 727081B
- Authority
- ZA
- South Africa
- Prior art keywords
- alarm device
- fire alarm
- fire
- alarm
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/06—Electric actuation of the alarm, e.g. using a thermally-operated switch
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/02—Details
- H01H37/32—Thermally-sensitive members
- H01H37/52—Thermally-sensitive members actuated due to deflection of bimetallic element
- H01H37/54—Thermally-sensitive members actuated due to deflection of bimetallic element wherein the bimetallic element is inherently snap acting
Landscapes
- Physics & Mathematics (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- General Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Fire-Detection Mechanisms (AREA)
- Fire Alarms (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US18841271A | 1971-10-12 | 1971-10-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
ZA727081B true ZA727081B (en) | 1973-06-27 |
Family
ID=22693035
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA727081A ZA727081B (en) | 1971-10-12 | 1972-10-03 | Fire alarm device |
Country Status (7)
Country | Link |
---|---|
US (1) | US3786461A (en) |
AU (1) | AU460870B2 (en) |
BE (1) | BE789942A (en) |
CA (1) | CA1032251A (en) |
FR (1) | FR2157384A5 (en) |
GB (1) | GB1375059A (en) |
ZA (1) | ZA727081B (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4372693A (en) * | 1981-01-30 | 1983-02-08 | Raychem Corporation | Temperature excursion sensing and locating apparatus |
US4411536A (en) * | 1981-05-29 | 1983-10-25 | Raychem Corporation | Bi-directional temperature excursion sensing and locating apparatus |
US5280417A (en) * | 1991-08-09 | 1994-01-18 | The Brinkmann Corporation | Low voltage light fixture |
RU2520429C1 (en) * | 2013-01-10 | 2014-06-27 | Открытое акционерное общество "Авангард" | Independent signal system and launcher system of fire extinguishing |
RU2565492C1 (en) * | 2014-11-28 | 2015-10-20 | Санкт-Петербургский филиал ОАО "Воентелеком" | Fire protection system of container basic bearing structure |
RU2641886C1 (en) * | 2017-01-20 | 2018-01-22 | Федеральное государственное казенное военное образовательное учреждение высшего образования "ВОЕННАЯ АКАДЕМИЯ МАТЕРИАЛЬНО-ТЕХНИЧЕСКОГО ОБЕСПЕЧЕНИЯ имени генерала армии А.В. Хрулева" | Autonomous signal-start firefighting system |
RU2744900C1 (en) * | 2020-03-23 | 2021-03-17 | Закрытое акционерное общество "Производственное объединение "Спецавтоматика" | Method for automatic fire hazard control and autonomous fire trigger device for its implementation |
CN112509862A (en) * | 2020-12-17 | 2021-03-16 | 太湖县野滋味食品商贸有限公司 | Plug-in temperature controller capable of resetting after power is pulled out |
CN116798206B (en) * | 2022-12-23 | 2024-01-23 | 山东万里红信息技术有限公司 | Safety early warning device |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2735078A (en) * | 1956-02-14 | Greenbaum | ||
US1927744A (en) * | 1926-06-14 | 1933-09-19 | Chas Cory Corp | Signal or alarm system |
US2132918A (en) * | 1934-12-22 | 1938-10-11 | C O Two Fire Equipment Co | Testing means for fire protection systems |
US2204237A (en) * | 1938-08-20 | 1940-06-11 | Charles M Slack | Alarm cable and switch |
US2779842A (en) * | 1955-04-12 | 1957-01-29 | Norman A Walker | Device to establish an electrical circuit |
US2954447A (en) * | 1958-12-18 | 1960-09-27 | Therm O Disc Inc | Thermostatic switch |
US3263049A (en) * | 1964-04-13 | 1966-07-26 | Texas Instruments Inc | Miniaturized, vibration resistant, thermally responsive electrical switch |
US3663924A (en) * | 1971-01-29 | 1972-05-16 | Matthew E Gerlat | Safety outlet |
-
1971
- 1971-10-12 US US00188412A patent/US3786461A/en not_active Expired - Lifetime
-
1972
- 1972-10-02 CA CA153,000A patent/CA1032251A/en not_active Expired
- 1972-10-03 ZA ZA727081A patent/ZA727081B/en unknown
- 1972-10-05 AU AU47450/72A patent/AU460870B2/en not_active Expired
- 1972-10-06 GB GB4631572A patent/GB1375059A/en not_active Expired
- 1972-10-10 FR FR7235865A patent/FR2157384A5/fr not_active Expired
- 1972-10-11 BE BE789942D patent/BE789942A/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
US3786461A (en) | 1974-01-15 |
FR2157384A5 (en) | 1973-06-01 |
AU4745072A (en) | 1974-04-11 |
AU460870B2 (en) | 1975-05-08 |
CA1032251A (en) | 1978-05-30 |
BE789942A (en) | 1973-04-11 |
GB1375059A (en) | 1974-11-27 |
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