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US 4,218,875 AGranted
Alarm
OwnerMichael L. Rothmaninventor
Life of this patent
Estimating the term…
Abstract
An alarm clock having a removable throwable alarm.
Claims6
In an improved alarm clock having an electric clock portion and a removable electric alarm portion, wherein said alarm portion has a signal which emits an audible sound when activated by said clock portion at a preselected time, the improvement comprising,
- said alarm portion having an energy storage means for enabling said signal to continue to emit the audible sound after said alarm portion is removed from said clock portion,
- said alarm portion being throwable and having an impact switch means adapted to deenergize said storage means upon impact of said thrown alarm portion against an object thereby temporarily closing said switch for deactivating said signal, and
- said alarm portion having an impact-absorbing casing to protectively house said signal upon impact, whereby said alarm portion is reusable after impact.
Dependencies are inferred from the claim text.