Cramer Gmbh & Co. Kommanditgesellschaft

Cavagna Group Spa

Toptron Gmbh

Cramer LLC

Toptron Elektronik Gmbh & Co. Kg

Wilhelm Cramer

Gunter Krohn

Helmut Diekmann

Dietmar G Kaselow

A safety shut-off device is provided for a liquid gas system for vehicles and/or vehicle trailers, in order to avoid an inadvertent release of gas. The device includes an electromagnetic gas valve for supplying/shutting off the gas, an electronic unit for activating the electromagnetic gas valve, and a flow sensor for determining a current gas flow being discharged from a storage tank. Furthermore, the device includes an evaluation unit for comparing the current gas flow to a previous gas flow or to a gas flow which is indicated by the gas consumers and is to be expected. If, during use, the evaluation unit determines a current gas flow which differs by more than a maximum permissible rate of change from the previous gas flow or from an expected gas flow, the electromagnetic gas valve is activated via the electric unit in order to shut off the supply of gas.

Electronic flow sensor

A safety shut-off device is provided for a liquid gas system for vehicles and/or vehicle trailers, in order to avoid an inadvertent release of gas. The device includes an electromagnetic gas valve for supplying/shutting off the gas, an electronic unit for activating the electromagnetic gas valve, and a flow sensor for determining a current gas flow being discharged from a storage tank. Furthermore, the device includes an evaluation unit for comparing the current gas flow to a previous gas flow or to a gas flow which is indicated by the gas consumers and is to be expected. If, during use, the evaluation unit determines a current gas flow which differs by more than a maximum permissible rate of change from the previous gas flow or from a gas flow which is indicated by the gas consumers and is to be expected, the electromagnetic gas valve is activated via the electric unit in order to shut off the supply of gas.

A cooking assembly has a main burner, a pilot burner mounted in it and having a vent, a gas valve having separate main and pilot gas outlets, and a main-burner controller including a temperature sensor on the main burner, a control unit on the valve capable of varying gas output from the main gas outlet, and a capillary tube connected between the sensor and the control unit. This controller can vary gas flow from the main outlet in accordance with the temperature of the main burner as sensed by the sensor. An electrical igniter on the main burner can be energized by a switch on the valve. A pilot-burner controller connected to the switch includes a thermoelectric sensor in the pilot vent and blocks gas output from the gas outlets when insufficient heat is detected by its sensor and the switch is not closed. When a control knob on the valve is in a closed position no gas is supplied from the outlets to the burners, in a first open position gas is supplied only from the pilot outlet to the pilot burner, in a second open position gas is supplied from both outlets to both burners while closing the switch, and in a third open position gas is also supplied from both outlets to both burners without closing the switch and while controlling the rate of gas flow from the main outlet to the main burner in accordance with the temperature detected by the capillary sensor.

Gas-fired ceramic-cooktop burner

A cooking range in which a burner below a glass-ceramic plate is ignited with a glow igniter switched off in response to an ionization detector when combustion products are effected so as to prevent excessive heating of the glow igniter.

Cooking apparatus with at least one glass-ceramic cooking plate

A cooking unit has a ceramic cooking surface, a gas burner underneath the surface, a gas supply including a solenoid valve for feeding a combustible gas to the burner, and an electric igniter juxtaposed with the burner and electrically energizable to ignite the combustible gas issuing from the burner. An electricity supply is connected to the igniter and to the gas supply for electrically energizing the igniter whenever the valve is open and supplying gas to the burner. In addition an electronic controller connected to the valve and to the electric supply monitors current consumption of the igniter and closes the valve when the current consumption of the igniter indicates same is malfunctioning. The controller includes a digital circuit that is also typically operated by the user of the cooker to turn the burners on and off and control their temperatures and an analog circuit connected parallel to each other. At least one of these circuits controls opening and closing of the valve. One of these arrangements is provided with a temperature display.

Control system for glass-top cooking unit

A cooking unit has a housing having a front and a rear and formed at the rear with an upwardly open upright vent passage, a ceramic panel on the housing defining a plurality of cooking spots, a burner plate in the housing spaced underneath the panel and defining therewith an upper compartment opening upward into the passage, and respective gas burners supported on the plate underneath the spots. Thus the burners can heat the respective spots of the panel. An equipment plate in the housing spaced underneath the burner plate defines therewith an intermediate compartment also opening upward into the passage and defines beneath itself in the housing a lower compartment that is open to the outside at the front of the housing. Control equipment is mounted in the lower compartment of the housing along with a blower having an intake in this lower compartment and an outlet in the vent passage. This blower is powered, normally electrically, so as to draw a primary stream of air in from the front of the housing and through the lower compartment and to expel it upward into the passage. This primary current aspirates secondary streams of air from the upper and intermediate compartments by venturi action.

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Sundern, Germany

Wilhelm Cramer