Cordless iron having a heater whose temperature is controlled by

Details Cordless iron having a heater whose temperature is controlled by Cordless iron having a heater whose temperature is controlled by

1988-08-26

1991-08-13

Paschall, M. H.

Electric heating

Heating devices

Combined with pressure application means

219501, 219497, 219505, 219247, 219250, 38 82, H05B 102

Patent

active

050398385

ABSTRACT:
In the cordless iron assembly, an iron (10) includes a base (11), a heater (12) for heating the base (11), a thermosensitive element (13) for sensing the temperature of the base (11), a temperature detecting circuit (14), and terminals (P1, P2, P3, and P4), and a stand (15) including a terminals (P5, P6, P7, and P8), a pulse detecting circuit (16), a temperature control circuit (17), and a cord (18). The temperature detecting circuit (14) produces a pulse signal in accordance with the temperature signal outputted from the thermosensitive element (13). The pulse signal detecting circuit (16) receives the pulse signal, and outputs the pulse signal to the temperature control circuit (17). By the temperature control circuit (17), the temperature of the heater (12) is controlled in accordance with the plate signal whereby the base temperature of the iron (10) can be correctly controlled when the iron (10) is supported on the stand (15). The pulse signal can be communicated by an electrical circuit or an optical link, possibly including an infra-red emitting diode or can be superimposed on the current supply connecting to the heater.

REFERENCES:
patent: 3637984 (1972-01-01), Irvine
patent: 4423344 (1984-04-01), Yasuda
patent: 4430553 (1984-02-01), Antimovski
patent: 4540877 (1985-09-01), Zelinka et al.
patent: 4827104 (1989-05-01), Foster, Jr.

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