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US 4,493,975 AGranted
Hang-up hair dryer
AssigneeYamada Electric Industries, Co. Ltd.
InventorKatsumi Yamamoto
Life of this patent
Estimating the term…
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AssigneeYamada Electric Industries, Co. Ltd.
InventorKatsumi Yamamoto
Estimating the term…
An electric appliance safety system including a hand-held appliance, a power input for receiving electric current, a two-pole switch for activating the appliance, a power cord connecting the appliance with the switch and a pair of manually operable control elements operatively coupled to the two-pole switch for controlling its position. A hanger box encloses the switch and control elements, except for protruding portions of the control elements, and is adapted to receive the appliance. When the appliance is removed from the hanger box, the protruding portion of one of the control elements can be pressed manually, until latched on the other control element, thereby closing the switch and activating the appliance. When the appliance is hung on the hanger box, the protruding portion of the other control element is pressed down, thereby releasing the first control element, opening the switch, and disconnecting the appliance.
An electric appliance system comprising an appliance adapted to be held in an operator's hand, a support housing means adapted to receive said appliance, a power input extending from said support having means for receiving electric energy from a voltage source, a two-pole switch means housed in said support housing means and connected to said power input for enabling application of said electric energy to said appliance, a power cord extending between said switch means and appliance for applying electric energy to said appliance, and a manually operable control means operatively coupled to said switch means for controlling said switch means, wherein said power cord is connected and disconnected from said power input when said switch means is in the ON and OFF positions, respectively, said appliance including terminals connected across said voltage source and bearing load current when said two-pole switch means is in a closed ON position, said terminals each being electrically isolated from said voltage source when said two-pole switch means is in the open OFF position.
In a hand-held hair dryer operable with a source of electrical current comprising a housing, a blower, including a motor a manually operable switch arranged on said housing for controlling said motor and heater, circuit means arranged in said housing for connecting said switch with said blower and heater, and a power cord having a near end electrically connected to said circuit means and a remote end for connection to said source, the improvement in combination therewith comprising a wall-mountable support housing for removably supporting said dryer, a two-pole switch having ON and OFF positions, and being arranged in said support housing and wired in-line with said power cord at said remote end, and first and second manually operable control elements partially protruding from said support housing, each of said control elements having first and second positions for controlling said switch, said first and second positions corresponding to the ON and OFF positions of said switch, wherein said first control element is moved to its first position in response to the application of manual pressure on its protruding portion, whereby said appliance is turned ON, and said second control element is moved to its second position in response to the application of pressure on its protruding portion when said appliance is placed on said support housing, whereby said appliance is turned OFF.
An electric appliance system comprising:
In an electrical appliance having an ON/OFF switch arranged thereon and a power cord, said power cord havig a near end connected to said ON/OFF switch and a remote end for receiving electric energy from a power source, the improvement in combination therewith comprising a relay switch connected at said remote end of said power cord, said relay switch comprising, a coil, a pair of contacts, and a manually operable control element for manually closing said contacts whereby said coil and appliance are energized in response to said ON/OFF switch being moved to its ON position, said contacts being held closed in response to energization of said coil, and said contacts being opened in response to said ON/OFF switch being moved to its OFF position whereby said appliance is completely deenergized, said appliance including terminals connected across said power source and bearing load current when said pair of contacts is in a closed ON position, said terminals each being electrically isolated from said power source when said pair of contacts is in the open OFF position.
Dependencies are inferred from the claim text.