CA1000080A - Pulsing bell - Google Patents
Pulsing bellInfo
- Publication number
- CA1000080A CA1000080A CA197,249A CA197249A CA1000080A CA 1000080 A CA1000080 A CA 1000080A CA 197249 A CA197249 A CA 197249A CA 1000080 A CA1000080 A CA 1000080A
- Authority
- CA
- Canada
- Prior art keywords
- pulsing
- bell
- pulsing bell
- 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
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B3/00—Audible signalling systems; Audible personal calling systems
- G08B3/10—Audible signalling systems; Audible personal calling systems using electric transmission; using electromagnetic transmission
-
- 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
- G10K1/00—Devices in which sound is produced by striking a resonating body, e.g. bells, chimes or gongs
- G10K1/06—Devices in which sound is produced by striking a resonating body, e.g. bells, chimes or gongs the resonating devices having the shape of a bell, plate, rod, or tube
- G10K1/062—Devices in which sound is produced by striking a resonating body, e.g. bells, chimes or gongs the resonating devices having the shape of a bell, plate, rod, or tube electrically operated
- G10K1/063—Devices in which sound is produced by striking a resonating body, e.g. bells, chimes or gongs the resonating devices having the shape of a bell, plate, rod, or tube electrically operated the sounding member being a bell
- G10K1/064—Operating or striking mechanisms therefor
- G10K1/065—Operating or striking mechanisms therefor for timed or repeated operation
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Air Bags (AREA)
- Sewing Machines And Sewing (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US362643A US3872471A (en) | 1973-05-21 | 1973-05-21 | Pulsing bell having rectifier circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
CA1000080A true CA1000080A (en) | 1976-11-23 |
Family
ID=23426943
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA197,249A Expired CA1000080A (en) | 1973-05-21 | 1974-04-10 | Pulsing bell |
Country Status (3)
Country | Link |
---|---|
US (1) | US3872471A (en) |
CA (1) | CA1000080A (en) |
GB (1) | GB1419217A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5184594A (en) * | 1975-01-21 | 1976-07-23 | Matsushita Electric Works Ltd | Denshichaimu |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3460136A (en) * | 1965-11-23 | 1969-08-05 | Vartan M Jambazian | Electronic sound signalling device |
US3618079A (en) * | 1968-06-20 | 1971-11-02 | Sparton Corp | Solid state interrupter system |
-
1973
- 1973-05-21 US US362643A patent/US3872471A/en not_active Expired - Lifetime
-
1974
- 1974-04-10 CA CA197,249A patent/CA1000080A/en not_active Expired
- 1974-05-10 GB GB2079274A patent/GB1419217A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US3872471A (en) | 1975-03-18 |
GB1419217A (en) | 1975-12-24 |
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