Flat-iron safety device utilizing a dual internal timing circuit

Details Flat-iron safety device utilizing a dual internal timing circuit Flat-iron safety device utilizing a dual internal timing circuit

1986-12-03

1989-02-07

Bartis, Anthony

Electric heating

Heating devices

Combined with pressure application means

38 75, 200 6145R, 200 6152, 219251, H05B 102, D06F 7526

Patent

active

048033421

ABSTRACT:
An electric flat-iron safety device includes a magnet pivotally supported in a flat-iron and arranged to actuate a first magnetically operated switch only when the flat-iron is in a horizontal ironing position and to actuate a second magnetically operated switch only when the flat-iron as tilted to a vertical rest position. Should the flat-iron remain motionless in the horizontal ironing position for a first predetermined time interval shorter than the time necessary for the flat-iron to reach its normal operating temperature, closure of the first switch by the magnet causes a resettable dual interval timing circuit to interrupt the power supply to the flat-iron. If the flat-iron remains motionless in the vertical tilted rest position for a second predetermined time for a interval longer than the time necessary for the flat-iron to reach its normal operating temperature, closure of the second switch by the magnet causes the dual interval timing circuit to interrupt the power supply. The dual interval timing the first or second switch opens in response to pivotal movement of the magnet prior to expiration of the first or second time interval.

REFERENCES:
patent: 2143701 (1939-01-01), Kelley et al.
patent: 2274390 (1942-02-01), Weeks
patent: 2382587 (1945-08-01), Thomas
patent: 2470532 (1949-05-01), Thomas
patent: 2833903 (1958-05-01), Waddell
patent: 4130955 (1978-12-01), Baumgartner et al.
patent: 4203101 (1980-05-01), Towsend
patent: 4520257 (1985-05-01), Schwob et al.
patent: 4580038 (1986-04-01), O'Loughlin
patent: 4661685 (1987-04-01), Comtri

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