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US 4,322,900 AGranted
Ironing device for industrial use and associated iron
OwnerKurt Hacker, Jiri Dokoupilinventors
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OwnerKurt Hacker, Jiri Dokoupilinventors
Estimating the term…
The disclosure relates to an ironing device comprising an iron having an electrically heated and temperature regulated sole, at least one temperature sensor positioned in the vicinity of said sole, and a heater connected to an external electric supply. A temperature regulator is positioned remote from the iron for controlling the current supply to the heater and is responsive to the temperature sensor. The temperature sensor has at least one temperature-dependent resistor and at least one compensating resistor connected with the temperature-dependent resistor. An actual-valve input sets the desired temperature of the sole. The temperature-dependent resistor is also connected to the actual-value input. The overall value of resistance formed by the temperature-dependent resistor and the compensating resistor at a predetermined sole temperature is selected to correspond with the overall resistance of the actual-value input when the resistance of the variable resistance component has been selected to correspond to the predetermined temperature.
An ironing device comprising an iron having an electrically heated and temperature regulated sole, at least one temperature sensor positioned in the vicinity of said sole, and a heater connected to an external supply of electrical current, temperature regulating means positioned remote from said iron for controlling the current supply to said heater and responsive to said temperature sensor, said temperature sensor having at least one temperature-dependent resistor, at least one compensating resistor connected with said temperature-dependent resistor, an actual-value input means for setting the desired temperature of said sole, said input means having a component whose resistance is variable to select the desired sole temperature, said temperature-dependent resistor further being connected to said actual-value input means, the overall value of resistance formed by said temperature-dependent resistor and said compensating resistor at a predetermined sole temperature being selected to correspond with the overall resistance of said actual-value input means when the resistance of said variable resistance component has been selected to correspond to said predetermined temperature.
An ironing device comprising an iron having an electrically heated and temperature regulated and generally planar sole, at least one temperature sensor positioned in the vicinity of said sole, a heater connected to an external source of electrical current, a steam feed, and a manually actuatable switch for the control of said steam feed, said control switch forming a part of a control circuit of a solenoid valve arranged in the steam feed, and a handle extending generally parallel to the face of said sole, said control switch having an actuator mounted on the handle, the axis of motion of the actuator intersecting the handle substantially at right angles to the longitudinal axis of the handle.
An ironing system for industrial use, the system comprising a plurality of irons and a plurality of temperature regulating devices, each of said irons having an electrically heated and temperature-regulated sole, at least one temperature sensor positioned on or adjacent to said sole and a plug-in connector for connecting the temperature sensor and the heater of each of said irons to one of said temperature regulating devices and to an external source of electrical current for heating respectively, at least one adjusting-resistor being connected in the circuitry of each of said temperature regulating devices on the side of said plug-in connector adjacent said temperature regulating device, the resistance value of said adjusting-resistor being chosen so as to render the input impedance of the circuitry on the side of said plug-in connector adjacent said temperature regulating device at least substantially equal to a value which has been predetermined in common for the plurality of temperature regulating devices of said ironing system.
Dependencies are inferred from the claim text.