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Assignee: Regie Nationale des Usines Renault


Location: Billancourt, FR
No. of patents: 21

NumberTitleIssue Date
4651629Piston of refractory materials, particularly for compression-ignition engines
A piston (2) is of refractory materials, particularly for a compression-ignition engine of the type having a head (4), a skirt (6) and their mutual fastening means. According to the invention, this skirt (6) is formed entirely of a refractory material and...
03/24/1987
4504165Ball-and-socket joint, especially for mounting the casing of an orientable rear-view mirror
The invention provides a ball-and-socket joint comprising two joint components one of which is constituted by a ball having a convex spherical surface integrally connected to a supporting rod, while the other joint component is constituted by a socket hav...
03/12/1985
4320781Three-way electrically-actuated hydraulic distributor
A first member of a magnetic housing has a core with a central passage and contains an electrical coil, and a second member of the housing has a ball cavity which receives and guides a magnetic ball. A central conduit and peripheral conduits enter the cav...
03/23/1982
4300503Process and system for computation and adjustment of optimum ignition advance
A novel process and system for computing and adjusting the optimum ignition advance in an internal combustion engine wherein knocking is detected by means of an accelerometer rigidly fastened to the cylinder head of the engine. An output from the accelero...
11/17/1981
4184109Position servo loop for robot or automatic machine
A nonlinear servo compensator for insertion in the position servo loop of a robot or automatic machine comprising a direct path with an operational amplifier and a second amplifier for summing the direct signal and its derivative; and a shunt path with an...
01/15/1980
4174245Method of fabricating a flexible fuel tank
A method of fabricating a flexible fuel tank by firstly injecting an elastomer into a mold formed in the shape of a half-shell with a peripheral edge, cooling the peripheral edge of the injected elastomer, vulcanizing in-situ the entire half-shell except ...
11/13/1979
4172489Distribution box for low-pressure casting of foundry pieces
An arrangement for casting foundry pieces comprising a source of liquid metal under low pressure in the form of a pressurized furnace, a column of metal or any other arrangement feeding a metal-distributing chamber connected to the mold cavities by gates,...
10/30/1979
4158270Device for driving sliding windows
A device for the driving of sliding panels, especially horizontally-sliding windows in an automobile, including a crank driving a command part which transmits its movement to several panels sliding in their plane, one relative to the other and in a predet...
06/19/1979
4140333Rear-axle structure for automotive vehicles
An improved rear axle suspension system wherein independently suspended wheels are supported from an extremity of a trailing wheel arm by a wheel spindle thereof, the wheel arms having extensions aligned transversely of the vehicle and constituting semi-a...
02/20/1979
4138901Speed reducer, particularly for driving a propeller
A belt-drive speed reducer, particularly for driving an airplane propeller from a standard automobile engine, features a protective housing attached to the motor, being supported by suitable borings 22 and 40 of the shaft of a drive pulley 10, on the one ...
02/13/1979
4106827Bearing with two rows of rolling elements including method of mounting bearing
A bearing having an outer race, an inner race with a mounting flange formed thereon, two corresponding bearing grooves formed in each of the races, and two sets of rolling elements disposed in parallel relation in the bearing grooves of the inner and oute...
08/15/1978
3982430Process and device for immobilizing a mobile component of a tire testig device relative to a fixed component thereof
A mobile element of a tire testing device is immobilized relative to a bath of an eutectic alloy by cooling the eutectic alloy to a temperature below its solidus/liquidus, and the mobile element is released by reheating the eutectic alloy to above its sol...
09/28/1976
3975062Device for limiting brake pressure according to vehicle load and deceleration
A braking pressure limiter device in which an inertia responsive valve normally closes under deceleration of the vehicle but has its closing action impeded by a linkage connected to an anti-roll bar so as to be responsive to the loading of the vehicle, fo...
08/17/1976
3941273Basket for handling machine parts
The invention relates to a basket for handling delicate machine parts, such as gears in machine shops, which comprises a conventional outer body and an internal block forming a rack for separation and support of the parts. The internal block is made up of...
03/02/1976
3941409Method and apparatus for attaching the exhaust manifold
A method and apparatus for the elastic attachment of the exhaust manifold to the cylinder head of the motor wherein the manifold is pressed against a gasketed mating surface with the cylinder head by elastic means disposed between the inclined supporting ...
03/02/1976
3938288Reinforcing device for automobile body
This device for improving the safety of automotive vehicles comprises a structure adapted to be fitted in the lateral doors of the vehicle between the main panels thereof, said structure consisting of a sleeve member secured parallel to said panels in the...
02/17/1976
3937076Device for testing tyres for vehicles
A tyre testing device comprises a track and a hub mounted on a carriage which can be moved towards and away from the track. The hub can be pivoted about mutually perpendicular axes to simulate changing values of camber angle ଲ and angle of lock �...
02/10/1976
3935705Exhaust manifold for an internal combustion engine
A manifold for an internal combustion engine to serve also as an exhaust gas depollution reactor. An ante-chamber into which the gas initially flows, can be made to operate as a post-combustion chamber by introduction of excess combustion air while the en...
02/03/1976
3934963Automatic balancing machines
This automatic machine is intended for machining workpieces in order to reduce their want-of-balance, notably in the case of small or medium series of rotary parts. This machine, adapted to balance dynamically these parts, comprises a measuring station an...
01/27/1976
3931814Cylinder-induction responsive electronic fuel feed control carburetors
Electronic-control carburetor adapted to emulsify a metered amount of fuel in synchronism with the induction phases of the cylinders of an internal combustion engine, which comprises a double sonic venturi system providing a low loss of pressure and suppl...
01/13/1976
3930337Window regulators for motor vehicles
This window regulator of the parallel-motion type comprises two parallel links with a front run channel rigid with a curved guider rail reproducing the movements of the glass-supporting bottom channel, a rolling member rigid with said bottom channel engag...
01/06/1976
 
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