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Class Information
Number: 219/541
Name: Electric heating > Heating devices > With heating unit structure > With terminal or connector means (e.g., to external circuit means)
Description: Subject matter including specific terminal or connector elements whereby an electrical connection with an external electrical circuit may be made.










Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

Patent Number Title Of Patent Date Issued
4125761 Bilateral heater unit Nov. 14, 1978
4123743 Termination for an electrical resistance element Oct. 31, 1978
4122329 Electrical air heating appliance Oct. 24, 1978
4121093 Surface heating equipment Oct. 17, 1978
4121088 Electrically heated air data sensing device Oct. 17, 1978
4112290 Evaporation vessel for use in vacuum evaporation Sep. 5, 1978
4107512 Insulated radiant heater Aug. 15, 1978
4107510 Starting aids for combustion engines Aug. 15, 1978
4107515 Compact PTC resistor Aug. 15, 1978
4100673 Method of making high temperature parallel resistance pipe heater Jul. 18, 1978
4100397 Thermostatically controlled electrical heater assembly Jul. 11, 1978
4100398 Laminated electrically heatable window with electrical connectors Jul. 11, 1978
4095088 Electrical energy supplied heat-emitting radiator Jun. 13, 1978
4091267 Self-regulating electric heater May. 23, 1978
4091262 Electrical energy supplied heat-emitting radiator May. 23, 1978
4086467 Electronic heater for high voltage applications Apr. 25, 1978
4085308 Electric water heater for showers Apr. 18, 1978
4082940 Soldering iron with replaceable heating element and a grounded handle and components thereof Apr. 4, 1978
4081659 Coffeemaker with electrical cord strain relief Mar. 28, 1978
4075459 Voltage tapping in electrical heating elements Feb. 21, 1978
4072848 Electrical heating cable with temperature self-limiting heating elements Feb. 7, 1978
4061412 Terminal for a resistance heating element Dec. 6, 1977
4058701 Glow element arrangement for electric cigarette lighters Nov. 15, 1977
4055723 Heater support element for electric furnace Oct. 25, 1977
4039778 Electric cartridge heater with a multiple thermocouple assembly Aug. 2, 1977
4037082 Positive temperature coefficient semiconductor heating device Jul. 19, 1977
4037083 High temperature parallel resistance pipe heater Jul. 19, 1977
4035613 Cylindrical ceramic heating device Jul. 12, 1977
4034206 Range top element Jul. 5, 1977
4032752 Heating elements comprising a PTC ceramic article of a honeycomb structure composed of barium titanate Jun. 28, 1977
4031356 Heat panel safety system Jun. 21, 1977
4029896 Terminal housing for an electrical resistance heater Jun. 14, 1977
4029942 Transparent prelaminate with electrical connectors Jun. 14, 1977
4021770 Electrical resistance element May. 3, 1977
4019022 Storage system for hot food trays Apr. 19, 1977
4013873 Electric heating farrowing pad with means for overhead and side shielding of electric cord Mar. 22, 1977
3996447 PTC resistance heater Dec. 7, 1976
3995141 Food warming device Nov. 30, 1976
3995142 Defogging rear window pane for motor vehicles Nov. 30, 1976
3984655 Terminal members of an electric tool for receiving detachable tips Oct. 5, 1976
3982099 Bilateral heater unit and method of construction Sep. 21, 1976
3976854 Constant-temperature heater Aug. 24, 1976
3974359 Electrically heated transparent laminated glazing unit Aug. 10, 1976
3970822 Electric cartridge heater Jul. 20, 1976
3969696 REFRACTORY RESISTOR WITH SUPPORTING TERMINAL Jul. 13, 1976
3956614 Electric current distribution means for a ceramic type of electrical resistance heater element May. 11, 1976
3956612 Radiant heating modular unit May. 11, 1976
3956613 Base element for an immersible electric coffee maker May. 11, 1976
3955064 Hair styling iron having interchangeable heating tips May. 4, 1976
3947618 Electrically heated transparent panel Mar. 30, 1976

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