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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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Class 104/293 - Including means to control gap


Subclass of Class 104 - Railways
Definition: Apparatus wherein means are provided to regulate that distance
No. of patents: 32
Last issue date: 08/29/2006


NumberTitleIssue Date
7097024Conveying device for conveying articles and use of such a conveying device
A conveying device for conveying articles, in particular vehicle bodies, in a known manner comprises at least one skid, which comprises two parallel skid runners and a supporting structure, which connects the skid runners to one another, for the article to be convey...
08/29/2006
6917136Synchronous machine design and manufacturing
Synchronous motors according to the invention operate at higher efficiency, with lower cost, reduced mass and reduced cogging. Magnet dimensions are selected that reduce cogging forces to a negligible amount even though there are fewer slots than normal. Optionally,...
07/12/2005
6422151Toy car with adjustable magnetic adhesion
The invention relates to a toy car with adjustable magnetic adhesion for an auto racetrack having ferromagnetic current conductors countersunk in the roadbed. The conductors are in active communication with a permanent magnet countersunk in the chassis of...
07/23/2002
6127757Levitation device
An electromagnetic levitation device comprises an electromagnet (12) which is supported by a structure (13) and is arranged to attract armature (10) carried by another structure (11). Current to the electromagnet (12) is regulated by a control device (16)...
10/03/2000
6116179Mounting of machinery within a vessel
A vessel comprises a cylindrical hull (10) containing a structure (11) carrying machinery (M) supported from the hull (10) by electromagnetic levitation means (12-17) that maintain electromagnetic forces between flux gaps (24) which are arranged to extend...
09/12/2000
5970881Linear type shuttle with movable linear motor primary
A linear-type shuttle has an air pad 4 that blows air toward a track 5, a chassis 2 that floats above the track 5 due to the air pad 4, a primary side 6a of a linear motor that is installed to be vertically movable on the chassis 2 and that drives the cha...
10/26/1999
5778796Switch system for personal rapid transit
An electromagnetic switching system for use in a Personal Rapid Transit (PRT) system having a personal rapid transit vehicle with an attached chassis operating over a network of interconnected guideways. The electromagnetic switching system comprises an e...
07/14/1998
5668090High-temperature AC superconducting magnets for a magnetic levitation system
An electromagnet for a MAGLEV system incorporates at least one superconducting coil, operating in AC mode, which surrounds a multiple-pole iron core and is constructed from a layer of epoxy-impregnated pancake coils assembled together along a common axis ...
09/16/1997
5601028Vehicle driven by a linear motor
A vehicle system for driving and supporting a vehicle by magnetic force along a vehicle travel path includes a guide rail extending along the vehicle travel path; longitudinal stators stationarily mounted along the guide rail; a vehicle including a vehicl...
02/11/1997
5551350Transporting system driven by linear motor having inductive power supply
An automated warehouse system a plurality of car passages, and a plurality of transport units, each disposed in a car passage containing parallel rails with vertical webbings, each of the transport units have a car, wheels for running on the rails, a driv...
09/03/1996
5542356Track-guided transport vehicle
A track-guided transport vehicle system for transporting high loads along a travel path contains for the drive a synchronous linear drive with a long stator along the travel path and an exciter winding on the vehicle. The long stator generates a travellin...
08/06/1996
5467718Magnetic levitation transport system with non-contact inductive power supply and battery charging
A magnetic levitation transport system includes magnetic levitation vehicles each driven by a linear motor to run along a track. Induction lines extend through predetermined blocks of the running track to transmit a high frequency sine-wave current. Each ...
11/21/1995
5215015Track system and vehicle having both magnetic and aerodynamic levitation, with wings on the vehicle carrying the whole weight at normal operating speeds
A track vehicle such as a Maglev train has a body with superconducting coils mounted thereon which superconducting coils interact with vertically extending coils on guideways of a track to generate a propulsive force. The vehicle runs on wheels at low spe...
06/01/1993
5117136Linear motor supporting apparatus for vehicles
Linear motor supporting apparatus are mounted upon the front and rear portions of each bogie of a vehicle so as to maintain the predetermined distance defined between an on-board coil and a ground stator, the on-board coil and the ground stator together c...
05/26/1992
5115173Air gap controlling system for linear motor
An air gap controlling system for a linear motor wherein a comparatively small air gap can be assured between a truck-carried element and a ground-mounted element to assure a high efficiency of the linear motor and construction for driving such ground-mou...
05/19/1992
4967670Attraction type magnetic levitating apparatus
A plurality of stators of a linear induction motor are arranged at predetermined intervals, and guide rails are mounted on an upper portion of a track frame having a U-shaped section. A levitated object is magnetically levitated below the track frame so a...
11/06/1990
4924778Attraction type magnetic levitating apparatus
A plurality of stators of a linear induction motor are arranged at predetermined intervals, and guide rails are mounted on an upper portion of a track frame having a U-shaped section. A levitated object is magnetically levitated below the track frame so a...
05/15/1990
4920893Axle with magnetic guidance for railroad vehicles
An orientable axle with independent wheels comprises a beam perpendicular the axis of the wheels. It also comprises sensors (16, 20) for measuring the position of the beam with respect to the track; a reference position with respect to the track is prede...
05/01/1990
4867070Linear motor type monorail conveying apparatus
A linear motor type monorail conveying apparatus is disclosed including a pair of carriers adapted to ride on the monorail and a load bar positioned beneath the monorail connection the pair of carriers. A linear induction motor is carried by the load bar ...
09/19/1989
4862809Supports for railway linear synchronous motor
The fixed magnetic structure of a linear synchronous motor for a railway system is supported above the tracks by steel ribs so that thermal expansion of the ribs is similar to expansion of steel vehicles on the railway. The moving parts of the linear sync...
09/05/1989
4838172Transporting system of floated carrier type
In a transporting system, four magnetic units are mounted on corners of carrier and the carrier is suspended under rails by electromagnetic attractive forces acting between the magnetic units and the bottom section of the rails. Each of the magnetic unit ...
06/13/1989
4811667Transportation system of a floated-carrier type
A transportation system of a floated-carrier type according to this invention includes a carrier capable of running along guide rails with a cargo and load carried thereon. A magnetic unit is mounted on the carrier to float the carrier from the guide rail...
03/14/1989
4793263Integrated linear synchronous unipolar motor with controlled permanent magnet bias
Disclosed is a single, integrated linear synchronous unipolar motor having high-energy permanent magnets operable along a substantially linear demagnetization curve and a polyphase coil. Collectively, the permanent magnets and polyphase coil provide for p...
12/27/1988
4768064Conveyor device for alignment
A conveyor device for alignment in which minutely displaceable members and hydraulic fluid supply pads are disposed between a slide and a guide. The relative position of the slide and the guide is adjusted by controlling the dimension of the minutely disp...
08/30/1988
4754849Control system for elevator cage guide magnets
Continuous, vertically tensioned steel cables 31, 32 or straps 39, 40, 41 mounted in an elevator shaft 2 serve as tracking standards for air gap detectors 33, 34, 35 mounted to a passanger cage 5. The detector outputs differentially control electromagnet ...
07/05/1988
4742778Floating carrier type transporting system
A floating carrier type transporting system comprises guide rails whose bottom section is formed by a ferromagnetic material, a carrier free to run along the guide rails, a magnetic supporting device for floating the carrier, a linear induction motor for ...
05/10/1988
4690066Electromagnetically floated carrier system with stopping unit
A carrier which transports semiconductor chips or the like can run along two rails made of a ferromagnetic material and extending along a running path. The carrier has four supports projecting from its bottom. Four magnets units are supported by the suppo...
09/01/1987
4641586Magnetic suspension railway
A magnetic suspension for a railway vehicle with electromagnetic carrying, guiding and driving gear, wherein the forces of the exciter and transverse flux magnets support, guide, drive and brake together with an active motor section by regulating the gap ...
02/10/1987
4603640Device for incrementally identifying the vehicle position of a magnet levitation vehicle
The incremental detection of the vehicle position of a magnetic levitation vehicle, particularly having an elongate stator motor, can occur with at least one coded measuring strip which extends in the direction of travel with a fixed positional assignment...
08/05/1986
4299173Levitation and guide mechanism for curved track in inductive repulsion type vehicle magnetic levitation and guide system
An improvement in an inductive repulsion type vehicle magnetic levitation and guide system for a curved track in which the vehicle is levitated by an electromagnetic force generated between levitation conductors having the same time constant and laid in t...
11/10/1981
4284010Conveyance system
A conveyance system having an overhead guide rail above a surface and one or more vehicles which are guided by the rail and partially supported on the surface by a wheel structure. Preferably, the guide rail includes the stator of a linear induction motor...
08/18/1981
4055123Systems for magnetically supporting a vehicle
A system for magnetically supporting a vehicle equipped with permanent magnets and propelled by a linear induction motor along a roadway defined by a stator member energized by polyphase alternating current, the system including members located on the veh...
10/25/1977
 
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