Portable hand-operated, battery-powered grip responsive sleep alert device, not for medical purposes, to prevent unwanted dozing or sleep that is activated when a switch that is normally closed by a spring is opened by the user's hand-grip

'activ':25 'alert':11 'batteri':6 'battery-pow':5 'close':32 'devic':12 'doze':20 'grip':8,44 'hand':3,43 'hand-grip':42 'hand-oper':2 'medic':15 'normal':31 'open':37 'oper':4 'portabl':1 'power':7 'prevent':18 'purpos':16 'respons':9 'sleep':10,22 'spring':35 'switch':28 'unwant':19 'user':40

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