Press for fabrics

Details Press for fabrics Press for fabrics

1989-03-17

1990-01-30

Paschall, M. H.

Electric heating

Heating devices

With power supply and voltage or current regulation or...

219497, 219501, 219505, 219252, 323236, 38 17, 38 82, H05B 102

Patent

active

048975273

ABSTRACT:
A fabric press comprises a press with a heating element (1) a temperature sensor (17), and a microprocessor based controller programmed to apply electrical power initially to the element for a boost period during which the press temperature is limited to a boost temperature, and then at the end of the boost period, to reduce the applied power and thereafter to control the power to maintain the press temperature substantially at a lower normal temperature. The controller comprises microprocessor (14) which supplied signals to a triac (12), the signals being timed to be applied at the zeros of the a.c. supply voltage and to switch the heater power for complete cycles of the supply voltage.

REFERENCES:
patent: 3290807 (1966-12-01), Esaka
patent: 4277671 (1981-07-01), Mori et al.
patent: 4330702 (1982-05-01), Cheng
patent: 4375205 (1983-03-01), Green
patent: 4547657 (1985-10-01), Sticher, Jr. et al.
patent: 4580038 (1986-04-01), O'Loughlin

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