Signals and indicators – Alarms – Reeled material end
Patent
1978-11-13
1979-10-16
Swisher, S. Clement
Signals and indicators
Alarms
Reeled material end
116137R, G08B 306
Patent
active
041709551
ABSTRACT:
This invention has to do with an alarm used by persons engaged in high-risk activities. A can of propellant gas is used in combination with a means to generate a noise signal at approximately 120 decibels. A rotatable shaft is used to connect the pressurized container and the noise generating means during operation of the device. A flutter valve can be used in the noise generating means to produce an intermittent signal.
REFERENCES:
patent: 3670690 (1972-06-01), Swanson
patent: 3785335 (1974-01-01), Wagner
patent: 3918437 (1975-11-01), Saba
patent: 4044712 (1977-08-01), Goodman
Corr Denis E.
Swisher S. Clement
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