Electric heating – Heating devices – With current connection and/or disconnection means
Patent
1993-03-05
1994-04-19
Paschall, Mark H.
Electric heating
Heating devices
With current connection and/or disconnection means
219491, 219493, 219519, 219497, 99329R, H05B 102
Patent
active
053047826
ABSTRACT:
An electric toaster that enables power to be disconnected from the heating elements upon completion of a toasting cycle regardless of the position of the main product supporting the carriage in the toasting compartment. The toaster has an electromagnetic latch and an auxiliary member carried by the main carriage which is movable relative to the main carriage. The auxiliary member is urged by biasing member to move in a direction away from the electromagnetic latch but able to be held thereby when the latch is activated. The auxiliary member also is arranged to close main power supply contacts to supply power to the heating elements when the auxiliary member is held by the latch, but to open said main supply contacts when the auxiliary member moves away from the latching means under action of the biasing member. The toaster may also include a sensor to sense abnormal conditions in the toaster to disconnect power from the heating elements when such abnormal conditions occur.
REFERENCES:
patent: 4092520 (1978-05-01), Holmes et al.
patent: 4188865 (1980-02-01), Bjarsch
patent: 4395621 (1983-07-01), Parker
patent: 4687906 (1987-08-01), Fujishima et al.
patent: 4755656 (1988-07-01), Charlesworth et al.
Cheah Alk P.
McNair John D.
Black & Decker Inc.
Deutsch Barry E.
Paschall Mark H.
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