Patents Assigned to Yamada Electric Industries, Co. Ltd.
  • Patent number: 4493975
    Abstract: 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.
    Type: Grant
    Filed: September 30, 1982
    Date of Patent: January 15, 1985
    Assignee: Yamada Electric Industries Co., Ltd.
    Inventor: Katsumi Yamamoto
  • Patent number: 4395619
    Abstract: A hair dryer having a quartz glass tube heater to produce radiant heat has a shock mount sub-assembly to resist breakage of the tube when the hairdryer is subjected to drop tests or other selected concussions. The shock mounts include spring members which are flexible and resilient relative to the housing and furthermore have resilient engagement with the tube to allow slight but controlled movement of the tube without breakage regardless of the direction of impact or orientation of the hairdryer when dropped. An internal blower for creating an air flow through this quartz tube heater hairdryer may be included as a safety feature to prevent overheating and to provide nominal air flow for conventional type drying.
    Type: Grant
    Filed: May 6, 1981
    Date of Patent: July 26, 1983
    Assignee: Yamada Electric Industries, Co. Ltd.
    Inventor: Hiroshi Harigai
  • Patent number: 4197448
    Abstract: An electric hair dryer having a generally spherical outer housing with an elongated handle extending in one direction, a generally spherical inner housing with an air discharge duct, the inner housing mounted in the outer housing in a first position with the duct extending in a direction opposite the handle, the inner housing being pivotable to a second position where the duct extends transversely of the handle, and a power section mounted within and pivotable with the inner housing and including an electric motor, a fan driven by the motor, and a cylindrical electric heater positioned such that air flows inwardly through its cylinder walls and then axially through the cylinder to the discharge duct.
    Type: Grant
    Filed: February 11, 1977
    Date of Patent: April 8, 1980
    Assignee: Yamada Electric Industries, Co. Ltd.
    Inventor: Hiroshi Harigai