ES430349A1 - Perfeccionamientos en transmisores de sonidos activados porgas comprimido y accionados por compresion. - Google Patents
Perfeccionamientos en transmisores de sonidos activados porgas comprimido y accionados por compresion.Info
- Publication number
- ES430349A1 ES430349A1 ES430349A ES430349A ES430349A1 ES 430349 A1 ES430349 A1 ES 430349A1 ES 430349 A ES430349 A ES 430349A ES 430349 A ES430349 A ES 430349A ES 430349 A1 ES430349 A1 ES 430349A1
- Authority
- ES
- Spain
- Prior art keywords
- back pressure
- sound transmitter
- pressure operated
- operated sound
- pressure chamber
- 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
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K7/00—Sirens
- G10K7/06—Sirens in which the sound-producing member is driven by a fluid, e.g. by a compressed gas
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Control Of Fluid Pressure (AREA)
- Details Of Valves (AREA)
- Tumbler Switches (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
- Reciprocating Pumps (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE7312952A SE376317B (es) | 1973-09-24 | 1973-09-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
ES430349A1 true ES430349A1 (es) | 1976-09-16 |
Family
ID=20318628
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES430349A Expired ES430349A1 (es) | 1973-09-24 | 1974-09-24 | Perfeccionamientos en transmisores de sonidos activados porgas comprimido y accionados por compresion. |
Country Status (8)
Country | Link |
---|---|
US (1) | US3942468A (es) |
JP (1) | JPS5079291A (es) |
DE (1) | DE2445249A1 (es) |
DK (1) | DK498774A (es) |
ES (1) | ES430349A1 (es) |
GB (1) | GB1425310A (es) |
NO (1) | NO132912C (es) |
SE (1) | SE376317B (es) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4102297A (en) * | 1977-04-15 | 1978-07-25 | Leslie Co. | Acoustical signal apparatus |
US4276669A (en) * | 1978-01-23 | 1981-07-07 | Virgilio Suba | Automatically-inflatable life preserver |
SE428346B (sv) * | 1980-10-17 | 1983-06-27 | Kockumation Ab | Tryckgasdriven ljudsendare med resonanshorn och med organ for styrning av tryckgasens avgivning genom resonanshornet |
CN2836162Y (zh) * | 2005-11-07 | 2006-11-08 | 金建强 | 便携式手动气喇叭 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2177594A (en) * | 1935-08-14 | 1939-10-24 | Carl H Fowler | Audible railroad signal |
US2396423A (en) * | 1942-06-26 | 1946-03-12 | Westinghouse Air Brake Co | Air raid warning control system |
SE316401B (es) * | 1969-01-09 | 1969-10-20 | Kockums Mekaniska Verkstads Ab | |
SE348578B (es) * | 1971-09-27 | 1972-09-04 | Kockums Mekaniska Verkstads Ab |
-
1973
- 1973-09-24 SE SE7312952A patent/SE376317B/xx unknown
-
1974
- 1974-09-10 US US05/504,473 patent/US3942468A/en not_active Expired - Lifetime
- 1974-09-13 GB GB4004974A patent/GB1425310A/en not_active Expired
- 1974-09-21 JP JP49109424A patent/JPS5079291A/ja active Pending
- 1974-09-21 DE DE19742445249 patent/DE2445249A1/de active Pending
- 1974-09-23 NO NO743410A patent/NO132912C/no unknown
- 1974-09-23 DK DK498774A patent/DK498774A/da unknown
- 1974-09-24 ES ES430349A patent/ES430349A1/es not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US3942468A (en) | 1976-03-09 |
JPS5079291A (es) | 1975-06-27 |
NO132912C (es) | 1976-01-28 |
DK498774A (es) | 1975-06-02 |
GB1425310A (en) | 1976-02-18 |
NO132912B (es) | 1975-10-20 |
SE376317B (es) | 1975-05-12 |
NO743410L (es) | 1975-04-21 |
SE7312952L (es) | 1975-03-25 |
DE2445249A1 (de) | 1975-04-03 |
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