초록 ▼

A method of safely operating an electrical appliance or equipment in which the appliance or equipment is powered from a source of electrical supply so as to ensure that the said appliance or equipment does not remain energized indefinitely through neglect, omission, oversight or distraction, said me

A method of safely operating an electrical appliance or equipment in which the appliance or equipment is powered from a source of electrical supply so as to ensure that the said appliance or equipment does not remain energized indefinitely through neglect, omission, oversight or distraction, said method including: timing or disconnecting means for automatically switching off power to said electrical appliance or equipment after a set or selected period of time, and audible and/or visual alerting means to warn of an impending disconnection of power to the said electrical appliance or equipment through the action of the first said timing and disconnecting means as the set or selected period of time is approached and/or reached, and resetting means to re-start the sequence of operation of the said timing, disconnecting and alerting means if said electrical appliance or equipment is required to operate or remain in use for a period of time exceeding the timing and disconnecting means set or selected period, and silencing means to mute the emitted audible and/or visual warning if the said electrical appliance or equipment is required to continue to operate or remain in use for the set or selected period of time without interference by or inconvenience from the emitted warning.

대표청구항 ▼

[ What is claimed is:] [1.]1. A timing apparatus for controlling an electrical appliance comprising;a primary timer and a primary manual resetter, where the primary timer energizes the appliance for a preset interval of time beginning either when the primary timer is energized or when the primary ma

[ What is claimed is:] [1.]1. A timing apparatus for controlling an electrical appliance comprising;a primary timer and a primary manual resetter, where the primary timer energizes the appliance for a preset interval of time beginning either when the primary timer is energized or when the primary manual resetter is manually activated, and where the primary timer automatically de-energizes the appliance upon expiration of the predetermined interval of time;a secondary timer and a secondary manual resetter, where the secondary timer measures a preset interval of time shorter than the interval of time of the primary timer, the preset interval of time for the secondary timer beginning when the secondary timer is energized or when the secondary timer is manually reset by manual activation of either the secondary resetter or the primary resetter,an alarm indication that indicates an alarm upon expiration of the interval of time of the secondary timer, and indicates no alarm during the interval of time of the secondary timer.