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Wilhelm Jung, Karl Rau: Apparatus for capacitive filling-level measuring, particularly in a motor vehicle tank. VDO Adolf Schindling, Eric P Schellin, October 27, 1981: US04296630 (29 worldwide citation)

An apparatus for measuring the level of fluid in a container by the use of measuring electrodes forming a measuring condenser, and compensation electrodes forming a compensation condenser by which the effect of various dielectric constants of the medium upon the measuring result can be compensated i ...


2
Karl Rau, Martin Haub: Liquid-level transmitter with bell jar housing for gasoline tanks. VDO Adolf Schindling, Martin A Farber, July 30, 1985: US04532491 (25 worldwide citation)

In a liquid-level transmitter having a swingable support lever (3) which bears a float (7) and a variable electrical resistor (9) actuated thereby, the variable resistor (9) is surrounded by a bell-shaped structural part (1) which is open towards the bottom but otherwise closed. In this way, as in t ...


3
Horst Schlick, Karl Rau: Liquid level measuring device. January 22, 1980: US04184370 (18 worldwide citation)

A liquid level measuring device for measuring the liquid level in a container, includes a fastening member for holding the device in a container, and a support with a lower end portion or prop extending into engagement with the container bottom. The support carries a liquid level sensing member and ...


4
Karl Rau: Liquid level indicating device. VDO Adolf Schindling, Otto John Munz, February 13, 1979: US04139750 (16 worldwide citation)

A liquid level indicating device for indicating a predetermined liquid level in a container includes a mounting member mounted on the container, a float movable with the level of liquid in the container and actuating an electrical switch when the float is at the predetermined liquid level in the con ...


5
Horst Schlick, Karl Rau, Alfred Wipfler, Joachim Lueg Althoff: Electric door lock for motor vehicles. VDO Adolf Schindling, Otto John Munz, June 9, 1981: US04272112 (14 worldwide citation)

An apparatus is disclosed for electrically locking the doors of motor vehicles, wherein at least one motor is supported in a driver door and the motor is coupled with a lock mechanism by means of a connecting element, with a first switch coupled with the motor to be actuated thereby and a second swi ...


6
Karl Rau: Suction device. VDO Adolf Schindling, Martin A Farber, April 16, 1985: US04510968 (4 worldwide citation)

A suction device for a fuel feed unit in which the suction device has a rigid suction tube on which a suction head is arranged. The suction head is formed as a conically widening elastic bellows having a large suction opening which faces the bottom with a screen arranged in the opening. As a result ...


7
Karl Rau, Heinz Kalk, Gerhard Metzger: Apparatus for electrically measuring the level of a liquid in a container, particularly in the gasoline tank of a vehicle. VDO Adolf Schindling, Martin A Farber, January 28, 1986: US04566322 (2 worldwide citation)

In a device for the electric measurement of the level of a liquid in a container, particularly in the gasoline tank of a vehicle, a support developed as protective tube of a conductor foil is fastened for swinging against the force of a spring (14 and 21) to the top of the container. In order to be ...


8
Helmut Harth, Karl Rau, DE, Helmar R Wagner: Dental preparations containing orotic acid. Blendax Werke R Schneider & Co Mainz Federal Republic, Arthur G Connolly, Rudolf E Hutz, September 5, 1972: US3689638 (2 worldwide citation)

A dental preparation for the care of the mouth which exerts a refreshing and stimulating action on the mucous membranes of the mouth and the gum contains uracil-4-carboxylic acid and/or its inorganic and organic salts, optionally with a solubilizer. 3 Claims, No Drawings


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