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US 5,847,652 AGranted
Electronic whistle device
OwnerDavid Takao Yamamotoinventor
Life of this patent
Estimating the term…
Abstract
An electronic whistle device (10) comprising a casing (12). A whistle producing circuit (14) is carried within the casing (12). A manually operated switch (16) is remote from the casing (12). An assembly (18) is for electrically connecting the manually operated switch (16) to the whistle producing circuit (14) within the casing (12). When the manually operated switch (16) is closed, the whistle producing circuit (14) will be activated to make a whistle sound (20).
Claims22
An electronic whistle device comprising:
- a) a casing;
- b) a whistle producing circuit carried within said casing;
- c) a manually operated switch remote from said casing;
- and
- d) means for electrically connecting said manually operated switch to said whistle producing circuit within said casing, so that when said manually operated switch is closed said whistle producing circuit will be activated to make a whistle sound.
2 more elements
Dependencies are inferred from the claim text.