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Patent No. 5421089

Fork With Timer

A fork with timer for providing a cue to a user after an elapsed period of time for indicating that another bite of food using the fork may be taken.

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Assignee: TRW Fahrwerksysteme GmbH & Co. KG


Location: Dusseldorf, DE
No. of patents: 53

1    
NumberTitleIssue Date
7153055Ball-and-socket joint
The invention relates to a ball-and-socket joint which is intended especially for vehicle chassis. The inventive ball-and-socket joint comprises a joint bolt (1) which is provided with a ball joint (1.1), and a plastic joint housing (2) into whi...
12/26/2006
7096883Combined check/pressure control valve
The invention relates to a combined check and pressure control valve (10), comprising a check valve element (34) which is adjustable between an opened position and a closed position, and a pressure control valve element (42) which on exceeding a...
08/29/2006
6840697Ball-and-socket joint with bearing shell
Ball-and-socket joint includes a joint housing (1) and a ball head (2) with a ball pivot (3). A bearing shell (4) is disposed between the ball head (2), the joint housing (1), and a housing cover (5). A compressive fo...
01/11/2005
6666467Joint rod for a motor vehicle
A joint rod adapted for motor vehicles consists of a joint section having a connecting surface and a rod section having an inner surface. The joint section and the rod section being joined by positive engagement between the connecting surface and the inne...
12/23/2003
6547267Axle system for articulated arrangement of vehicle axles in motor vehicles and method for manufacturing same
The subject of the present invention is an axle system for the articulated arrangement of vehicle axles in motor vehicles, comprising an axle strut body (1) and at least one joint body (2), with said axle strut body (1) having recesses (7, 8) that are for...
04/15/2003
6514443Method for manufacturing a ball joint
A method for manufacturing a ball joint (2) consisting of a ball-ended spindle (21) and a socket (29), having no bearing shell and being already assembled during the manufacture includes, placing the ball-ended spindle (21), which comprises a ball (23) wi...
02/04/2003
6502661Steering system for a vehicle
The invention relates to a vehicle steering system comprising a steering linkage, a control hydraulic motor and a control hydraulic circuit, a steering wheel connected to the control hydraulic motor, and a control hydraulic cylinder connected to the contr...
01/07/2003
6488112Electrohydraulic steering system
An electrohydraulic steering system comprises a servo cylinder which has two chambers, an electric motor and a servo pump connected to the electric motor and being adapted to be driven in two different directions. The servo pump is directly connected to t...
12/03/2002
6394218Steering system for a vehicle
A steering system comprises a steering linkage and two positioners capable of positioning the steering linkage in unison. Each positioner comprises an electronic control circuit, a servomotor and a position sensor for sensing a position of the servomotor....
05/28/2002
6366080Sensor for sensing rotary movement including a stationary sensor unit and a rotatable sensor unit
The present invention is based on the objective of disclosing a rotary sensor arrangement in which the sensor is accessible without having to remove any assemblies, wherein said sensor arrangement also allows an economical integration into existing assemb...
04/02/2002
6338612Method for limiting the pressure provided by a hydraulic pump
A hydraulic pump system having a pump for pressurizing fluid and a hydraulic chamber for receiving fluid from the pump. An even flow of fluid is outputted from the chamber to a valve assembly. The chamber is formed from a resonator and a resonator cover t...
01/15/2002
6334620Bellows seal for pivot joints, especially in automobiles
The invention relates to a bellows seal for pivot joints, wherein a first end of the bellows is tightly and rigidly connected to the joint housing. The second end of the bellow tightly and annularly surrounds a tappet and has a radial and sealing surface....
01/01/2002
6257563Damper for vehicle components
The invention relates to a damper for vehicle components, particularly motor vehicle components such as steering tie rods and antiroll bar struts, with an elastic unit that is loaded in substantially axial direction of the component. To create a damper th...
07/10/2001
6236178Method for limiting the hydraulic maximum pressure of a power-assisted steering system
The object of the present invention is to provide a method for limiting the hydraulic maximum pressure of a power-assisted steering system, which permits effective pressure limitation and thus protects the individual elements of the power-assisted steerin...
05/22/2001
6195601Method for controlling the valve characteristic
To improve a method for controlling the valve characteristic in electrohydraulic power-assisted steering systems of motor vehicles so as to prevent any impairment of the steering precision, the invention proposes to control the speed of the electric motor...
02/27/2001
6164829Bearing shell
To provide a simple and quality improving manufacturing process for a bearing shell, particularly for rotatable and, to a limited extent, tiltable support of a ball pivot in a joint housing of a ball-and-socket joint comprising a one-piece ball socket (1)...
12/26/2000
6164927Process for venting a hydraulic assisted steering system
In order to reduce the amount of air trapped in hydraulic assisted steering systems (1), a communication (13, 14) is established between the area of the oil expanding volume (8, 10, 11), which is the top area in the mounted position, and an open system (2...
12/26/2000
6148947Power assisted steering unit for motor vehicles
To provide a particularly simple and cost effective design of a power-assisted steering unit for motor vehicles for supplying a servo-cylinder (3) with a hydraulic fluid as a function of the travelling speed and the steering rate, comprising a steering va...
11/21/2000
6145309Method for controlling the steering volume flow of a hydraulic power-assisted steering unit for motor vehicles
A apparatus for use with an open center steering valve (3) of a hydraulic power-assisted steering unit of a motor vehicle. The apparatus comprises an electric motor operated pump (5) and a hydraulic accumulator (7) for storing a pressurized quantity of hy...
11/14/2000
6138789Hydraulic rack and pinion steering
To improve a rack and pinion steering of the generic type to reduce noise development upon opening of the pressure-relief bore as well as in steady-state operation, the invention proposes that at least one filter element forming a flow resistance be inser...
10/31/2000
6139788Method for manufacturing a ball joint
The invention pertains to a method for manufacturing a ball joint composed of a ball-ended spindle (1), bearing shell (2) and socket, provided with a sealing boot (4) arranged between the socket and ball-ended spindle (1), in particular for a motor vehicl...
10/31/2000
6056292Shaft seal and method for manufacturing it
A shaft seal seals a shaft in a hydraulic steering valve. The seal is a sealing ring surrounding the shaft. The sealing ring has a sealing edge contacting the outer surface of the shaft to form a seal. The sealing edge extends circumferentially around the...
05/02/2000
6044543Method of manufacturing a joint housing
The invention concerns a method of manufacturing a joint housing, in particular for vehicle track rods, having an integral shaft with an internal thread designed to hold a longitudinal pin, the housing being produced from a blank with a ball-like enlargem...
04/04/2000
6030141Ball-and-socket joint and device for assembling a ball-and-socket joint
A ball joint, particularly a steering joint for motor vehicles, with a joint housing (1) having a spherical ring-shaped bearing surface (1b), in which a ball (2c) arranged on a ball pin (2) is seated so as to be able to rotate and tilt to a limited extent...
02/29/2000
6016837Steering valve with closed center
In order to reduce the number of components required and increase the service life by preventing friction resulting from large-diameter seals, a steering valve (1) is provided which has a closed center for supplying hydraulic pressure to an actuator and w...
01/25/2000
5975136Torsional sensor for a power-assisted steering device
A steering mechanism has an input shaft 2, a steering valve 1, an output shaft 3, and a torsionally elastic element 5. The input shaft 2 has a first longitudinal axis about which the input shaft 2 is rotatable, the input shaft 2 being rotatable about the ...
11/02/1999
5950518Rotary disk steering valve
A steering valve (30) directs hydraulic fluid from a hydraulic fluid source to a hydraulic cylinder of a steering system in a vehicle. The steering valve includes a rotatable first shaft (32) having a first face valve member (36) on an end portion of the ...
09/14/1999
5937900Rotary slide steering valve
A rotary slide steering valve (1) for supplying an actuator with hydraulic pressure, has an input shaft (2), an output shaft (3), a centering spring element (4) connected to the input shaft (2) and to the output shaft (3) and a valve element. The valve el...
08/17/1999
5876149Ball joint
A ball joint with a ball (1a) that is arranged on a gudgeon (1) and situated in a ball socket in a rotatable and tiltable fashion. The ball socket consists of plastic and is closed on one side. The ball socket is arranged in a housing (3). The ball socket...
03/02/1999
5876148Connection of an antiroll bar to a wheel suspension of a motor vehicle
An apparatus for use in a vehicle includes an antiroll bar (2) having a first opening, a vehicle part (3) having a second opening (3a), and a one-piece connecting rod (1) connecting the antiroll bar and the vehicle part. The one-piece connecting rod (1) h...
03/02/1999
5870941Steering valve with closed center
The invention concerns a steering valve with a closed center for supplying an actuator with hydraulic pressure, the steering valve comprising an input shaft, and output shaft, a torsionally resilient element which is connected at one end to the input shaf...
02/16/1999
5868216Hydraulic rack-and-pinion steering assembly
For a hydraulic rack-and-pinion steering assembly for which a working piston is guided in a hydraulic cylinder which features an end limit stop by which, in an end position of the working piston, a path for the pressure agent supplied to the working pisto...
02/09/1999
5862879Method and device for controlling the hydraulic pressure in a power steering system
The invention discloses a method for controlling the hydraulic pressure in a power steering device that serves for supplying compressed oil to the left and the right chamber of a power steering cylinder via a rotary slide valve with the aid of a pump, whe...
01/26/1999
5851006Torsional element for steering valves and spring characteristic improving process
A torsion element (1) for a steering valve is provided. The torsion element (1) comprises a torsionally elastic rod member (2) having axially opposite first and second end areas (3, 4) which are rotatable relative to one another. The rod member (2) has a ...
12/22/1998
5842537Steering gear
A vehicle steering gear for transferring rotational movement of a pinion (6) associated with a vehicle steering mechanism into axial movement of a tie rod connected with steerable wheels in the vehicle. The steering gear comprises a piston (1), first and ...
12/01/1998
5816360Method for controlling the pump speed of a hydraulic power steering device
In order to improve a method for controlling the speed of an electromotor-driven pump of a hydraulic power steering device of a motor vehicle as a function of the steering speed, so that the overall efficiency of the system is optimized in a simple manner...
10/06/1998
5813789Ball-and-socket joint
The invention pertains to a ball-and-socket joint composed of a ball pivot (1) and a joint housing (3), in which the coupling ball (1a), is supported, such that it can be twisted and tilted to a limited extent, by a plastic bearing shell (2). The bearing ...
09/29/1998
5810669Coupling spring element for interconnecting shafts
A coupling spring element is provided for which assembly without access and with no play, and a torsion-proof transmission of shaft revolutions is possible and has superior spring elastic properties to which, a plate-shaped element is provided with an ess...
09/22/1998
5797309Steering valve
In order to economize the manufacture and assembly as well as reduce the expenditure of components and functionally improve a steering valve for supplying an actuator with hydraulic pressure, comprising an input shaft 2, an output shaft 3, a torsion rod 4...
08/25/1998
5797469Steering valve
In order to additionally develop a conventional steering valve in such a way that it has a simple and economical design and is insensitive to pressure pulsations, a conventional steering valve is additionally developed by arranging at least one essentiall...
08/25/1998
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