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Class Information
Number: 219/722
Name: Electric heating > Microwave heating > With control system > Interlock circuitry and structure
Description: Subject matter wherein a device controls deenergizing a power source by opening a door handle or an access cover of a microwave heating apparatus.

Sub-classes under this class:

Class Number Class Name Patents
219/723 With additional safety feature 65
219/724 With latch assembly 40

Patents under this class:
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Patent Number Title Of Patent Date Issued
8253074 Wiring assembly for an appliance Aug. 28, 2012
8253084 Drawer type cooking device having turntable mechanism Aug. 28, 2012
7947935 Microwave oven and latch board in the microwave oven May. 24, 2011
7919735 High-frequency heating device Apr. 5, 2011
7720555 Heating device for a field device display May. 18, 2010
7317178 Door structure of microwave oven usable as pizza oven Jan. 8, 2008
7241978 Cooking heater Jul. 10, 2007
7091458 Door assembly for microwave oven Aug. 15, 2006
6867398 Microwave oven with toaster Mar. 15, 2005
6852961 High frequency heating apparatus provided with a switch attachment mechansm capable of covering at least one switch from outside Feb. 8, 2005
6852959 Driving circuit of DC microwave oven and method of controlling the same Feb. 8, 2005
6828532 Microwave oven with microwave leak control Dec. 7, 2004
6759636 Mobile microwave oven Jul. 6, 2004
6737620 Microwave oven having a coffee maker May. 18, 2004
6730882 Child-safe door latching system for a cooking appliance May. 4, 2004
6664523 Microwave oven capable of preventing overcurrent of a microswitch for controlling a DC power source Dec. 16, 2003
6552314 Normal position detecting and latching mechanism of a functional component in a heating apparatus Apr. 22, 2003
6420972 Door monitor for a gaming machine Jul. 16, 2002
6399931 Microwave oven with door safety switch device Jun. 4, 2002
6333495 Safety device for a microwave oven Dec. 25, 2001
6331699 Microwave heating apparatus requiring reduced power in a standby state Dec. 18, 2001
6300610 Microwave oven with door latching member Oct. 9, 2001
6229129 Switch access guard May. 8, 2001
6137096 Door latching mechanism with opening delay Oct. 24, 2000
6127664 Microwave compliant automatically sealing oven door Oct. 3, 2000
6060700 Microwave oven with removable storage cassette in dashboard of motor vehicle May. 9, 2000
6043473 Self lubricating door key and door hook for high frequency heating apparatus Mar. 28, 2000
6025581 Apparatus for assembling door and main body in microwave oven Feb. 15, 2000
6002119 Control circuit for microwave oven and method of controlling microwave oven Dec. 14, 1999
5986246 Power supply cut-off apparatus of microwave oven Nov. 16, 1999
5813711 Closure device for controlling a door lock in particular for the door lock of an oven Sep. 29, 1998
5777301 Relay driving apparatus for microwave oven and method thereof Jul. 7, 1998
5616270 Microwave oven having a lamp and door-operated switch mounted on a circuit board Apr. 1, 1997
5512735 Electric cooking range having new safety features Apr. 30, 1996
5483045 Microwave power system and method with exposure protection Jan. 9, 1996
5442161 Oven having vacuum heat insulating wall and method for assembling same Aug. 15, 1995
5345068 Cooking oven with rotatable and horizontally movable turntable Sep. 6, 1994
5331128 Apparatus for driving microwave oven using both A.C. and D.C. current Jul. 19, 1994
5300745 Apparatus for placing a microwave oven in a standby condition Apr. 5, 1994
5276300 AC/DC powered microwave oven Jan. 4, 1994
5235150 Open deck removable cover microwave oven Aug. 10, 1993
5225644 Oven door opening/closing device Jul. 6, 1993
5097105 Device for controlling the power of a microwave oven Mar. 17, 1992
5040089 D.C. relay with power reducing function Aug. 13, 1991
4935593 Cabinet for cooking appliances Jun. 19, 1990
4880954 Combined refrigerator and microwave oven with timed overload protection Nov. 14, 1989
4785152 Timing control device for a microwave oven Nov. 15, 1988
4745250 Interlock switch baseplate assembly May. 17, 1988
4713514 Microwave oven having control means which reduce the risk of no-load operation Dec. 15, 1987
4703147 Probe actuated switch Oct. 27, 1987

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