"Rail travel at high speeds is not possible because passengers, unable to breathe, would die of asphyxia."
Dionysius Lardner, Professor of Natural Philosophy and Astronomy at University College, London ; 1830
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| Number | Title | Issue Date |
| 5268546 | Microwave oven with browning means, a browning plate for use in a microwave oven A microwave oven having browning means which includes a metal browning plate (10), the underside of which is provided with a layer (11) of a ferrite material. Via an input opening (6) for supplying microwaves to the oven cavity, polarized microwaves are p... | 12/07/1993 |
| 5259217 | Device for determining the type of constituent fabric of a load or clothes to be washed in a washing machine or the like A clothes washing machine comprising a device for determining the weight of a clothes load placed in the washing machine drum, a microprocessor circuit control and memory for controlling the operation of the motor for the washing machine such as to cause ... | 11/09/1993 |
| 5247146 | Method and device for determining the weight of foods contained in a microwave oven and for controlling their treatment This invention provides a method and apparatus for determining the weight of foods contained in a microwave oven and for controlling their treatment in accordance with that weight. The apparatus determines the weight by measuring the heating of a body of ... | 09/21/1993 |
| 5237139 | Microwave oven, a method for excitation of the cavity of a microwave oven, and a wave guide device for carrying out the method This invention provides a microwave oven that is supplied with microwave energy through upper and lower feed openings in a side wall of the cavity. A wave guide is provided to feed those openings and is dimensioned to provide a resonance condition in the ... | 08/17/1993 |
| 5228212 | Method and apparatus for controlling the drying stage in a clothes dryer, washing machine or the like A method for controlling the length of a cycle for drying clothes contained in the drum of a clothes dryer machine, comprising measuring the quantity of water released by the clothes within a predetermined time during their drying, a signal being provided... | 07/20/1993 |
| 5216893 | Device for controlling the operation of a refrigeration appliance, such as a domestic refrigerator, a freezer or the like A device for controlling the operation of a refrigeration appliance such as a domestic refrigerator consists of a circuit (2) comprising a plurality of resistive elements (3, 4, 5, 6) for generating reference signals (VA) to be compared in a co... | 06/08/1993 |
| 5193522 | Electric, gas, combination or similar oven provided with a door, the glass surface of which is kept at a low temperature An electric, gas combined or similiar oven (1) is provided comprising a door (3) provided with a window (4), said window having an outer (5) and an inner surface (6) and a panel (9) interposed therebetween, said panel (9) comprises at least one mobile por... | 03/16/1993 |
| 5167003 | Scanning infrared for cleaning lamp heater a food preparation oven by pyrolysis A food preparation oven includes a cooking chamber (1) in which a device (12) is provided for generating heat waves and for directing them in a suitably concentrated manner onto the surfaces (6, 7, 8, 9, 10,11) of the walls of the chamber (1); the device ... | 11/24/1992 |
| 5157940 | Refrigeration, freezer or the like with an automatically closing and opening removable container in which vacuum is produced A refrigerator, freezer or the like comprises a cabinet (1), a pump (6) for producing vacuum and, in a refrigeration compartment (10) thereof, a container (17) closable in a vacuum-tight manner and able to be moved within said compartment (10), said conta... | 10/27/1992 |
| 5149930 | Microwave oven with lamp and microwave seal A microwave oven with a lighting device for illumination of the oven cavity. The lighting device comprises a smaller hole in the cavity wall, the small dimensions of said hole substantially eliminating leak of microwave through the hole, and a light-inten... | 09/22/1992 |
| 5147993 | Electric range having a microwave trap For an electric range featuring combined heating by microwave energy, and/or thermal energy a compact and space-saving construction impervious to microwave energy is provided by the thermal-energy source being arranged in a hood which is impervious to mic... | 09/15/1992 |
| 5142125 | Double-chamber electric oven with uniform heat transfer An electric oven comprising a housing (100) enclosing a cavity (6) provided on at least one wall with an electrical resistance element (7), there being provided in said cavity (6) a metal box structure (16) defining a cooking chamber (16A) which is open o... | 08/25/1992 |
| 5136277 | Device for detecting the presence of a food cooking container on a cooking hob A device is provided for detecting the presence of a food cooking container (9) placed on a cooking hob (1), in particular of glass ceramic, provided with at least one heater element such as an electrical resistance element (2, 40, 41, 42), a gas burner (... | 08/04/1992 |
| 5079924 | Circuit for controlling a free-piston engine in particular of a refrigerator compressor A circuit for controlling a free-piston engine, particularly of a refrigerator compressor, includes a bridge circuit part (1) of H configuration, in the sides (4, 5, 6, 7) of which there are positioned electronically controlled switching elements (8). The... | 01/14/1992 |
| 5036172 | Method and device for determining when a food has thawed in a microwave oven A method and device for determining when a food (9) has thawed in a microwave oven (1) are provided. The food (9) is placed above an element (14) constructed of a microwave sensitive material and shields the element (14) from the microwaves to a different... | 07/30/1991 |
| 4998001 | Method and device for treating a frozen food in a microwave oven A method for treating, i.e. thawing, thawing and heating, or thawing and cooking, a frozen food (9) in a microwave oven (1) is provided comprising a microwave generator or magnetron (2), characterized in that the food (9) is interposed between the magnetr... | 03/05/1991 |
| 4965848 | Control circuit for a permanent magnet or constant excitation direct current motor, particularly for washing machines A motor control circuit measures the motor voltage to determine actual motor speed. This speed voltage is the sum of the back emf and armature loses. The control circuit receives a reference voltage proportional to the desired motor speed and a further si... | 10/23/1990 |
| 4945735 | Washing machine with improved pump control device for closing a valve Washing machine is provided with improved pump control device for closing a valve, in particular a flap valve, for detergent economy, and control device suited for use in a washing machine. A washing machine comprising a tub (104), a solenoid valve (3) for the... | 08/07/1990 |