21
Bellur Ashok, Boucher Val G, Creger Lisa A, Rector Stephen W: Joystick command button force reduction member. Caterpillar, December 31, 1999: FR2780547-A1 (2 worldwide citation)

The command button (30) is mounted on the joystick and has an adapter (32) mounted between it and the mounting spigot (22). A converter (28) converts the mechanical movement of the button into electrical command signals. The adapter limits the force applied to the button by acting as a blocking memb ...


22
Zhang Hong, Hacker Frank: Correcting injection time for internal combustion engine with secondary air system. Siemens, December 31, 1999: FR2780447-A1

The secondary air system blows secondary air into the exhaust system (12) before the catalyser (19) during engine (10) warm-up. The method involves correcting the injection time depending on the main air flow (MAF-KGH), the secondary air flow (SAF-KGH) and a preset value for the air ratio. The secon ...


23
Kemmner Benjamin, Frietsch Thomas, Eidloth Rainer: Pressure control method for automatic clutch on motor vehicle. Luk Getriebe Systeme, December 31, 1999: FR2780524-A1

The method involves a pressure controller generating a pilot pressure. A conduit (12) carries a liquid at constant pressure with a pilot conduit (20) coupled to it through an orifice (14). A conduit (22) tapped from the pilot conduit is connected to a return passage (24) by a controlled valve (16). ...


24
Pelkey Brian J: Lubricant system for hypodermic needles and method for its application. Becton Dickinson Co, December 31, 1999: FR2780289-A1

A lubricated hypodermic needle of the invention includes an elongate tube with an outside surface, a proximal end, a distal end and an open bore therethrough. The needle has a hub attached to the proximal end of the needle that is used to attach the needle to a fluid handling device. The invention i ...


25
Wuensch Steffen: Oscillating grinder for optimal machining of surfaces. Bosch Robert, December 31, 1999: FR2780326-A1

The grinder has a grinding plate (20) moveable in orbital motion by an eccentric journal (25) driven by a shaft (11). The shaft is rotatable in opposite directions and that the journal moves with a different amount of eccentricity when being rotated in each of these directions. Consequently the plat ...


26
Jeong Yun Cheol, Kim Chang Yeon: Liquid crystal display control method e.g. for thin-film transistor liquid crystal display. LG Electronics, December 31, 1999: FR2780541-A1

The control method has a sampling signal voltage applied to the parallel sampling lines of the liquid crystal display cell matrix and data signal voltages applied to the intersecting signal lines at a given relative time interval, for operation of the liquid crystal display cells positioned at the l ...


27
Pflueger Gerhard: Elektrische maschine, insbesondere flüssigkeitsgekühlter drehstromgenerator. Bosch Robert, December 31, 1999: FR2780576-A1

Machine électrique, en particulier alternateur à courant triphasé, caractérisé en ce que sur la face extérieure du fond (10A) qui est à l'opposé du côté de l'entraînement du carter (10) on a constitué au moins une saillie de refroidissement (30, 31) qui est balayée par la chemise de liquide (35). La ...


28
Bohner Hubert, Moser Martin, Schneckenburger Reinhold: Hydraulic power steering system for motor vehicles. Daimler Chrysler, December 31, 1999: FR2780376-A1

The system has a hydraulic servomotor (9) that steers the wheels (30) that is controlled by a servovalve (2) which is in turn operated by an actuating motor (11). A regulating circuit (16) controls the actuating motor based upon signals representative of the desired and the actual steering angle, fr ...


29
Cho Jung Hwan, Kim Dug Bong, Yi Sang Yun, Rhee Tae Hyung: Optical intensity modulator with a curved optical waveguide. Samsung Electronics, December 31, 1999: FR2780520-A1

An arc shaped optical waveguide (200,204) is formed on a substrate. An electrode (202) is formed on and in alignment with the waveguide. The refractive index of the waveguide is changed with the intensity of the electric field applied to the electrode. An optical wave passing a predetermined place i ...


30
Oehmen Wilfried, Pakula Joseph, Kraushaar Gerhard: Spanning jaw shaft. Vam Aluminium, December 31, 1999: FR2780323-A3

The jaw shaft has an outer tube (1) in which a spanning element for central gripping of bushes, pipes or other cylindrical components is situated. The outer pipe is constructed as a spanning element cage with rotationally symmetrical spanning element guides (6-8). One spanning element (2) has an ela ...



Click the thumbnails below to visualize the patent trend.