Class 294/65.5 - MAGNET

Subclass of Class 294 - Handling: hand and hoist-line implements
Definition: Devices for raising material by means of one or more magnets.
No. of patents: 242
Last issue date: 06/14/2011

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Number	Title	Issue Date
5607281	Transfer device in a press The grippers (2, 3), which are mounted on the transport bars (1), are provided with permanent magnets (6). In order to seize and transfer a workpiece (4), the two grippers are moved toward the workpiece from the outside, while the front surfaces (5) of th...	03/04/1997
5540542	HDA headload carriage tooling A tool that loads magnetic heads onto the disk of a hard disk drive. The tool has a first arm which has an alignment block and a plurality of fingers. The first arm cooperates with a second arm which has an alignment slot and a plurality of second fingers...	07/30/1996
5487576	Air management system filter removing tool and metallic debris retriever A telescoping hand tool for retrieving filters or metallic debris in the duct work of air management systems where the tool is formed from non-metallic materials and employs a hook designed to remove a filter without significantly damaging the filter fram...	01/30/1996
5472253	Welder's debris pick up tool A hand held magnetic pickup which meets both the requirements of being able to remove magnetic debris from a narrow channel or gap, and of being sufficiently strong to pick up all magnetic debris over a wide area. The invention is an elongate, rare earth ...	12/05/1995
5471186	Magnetic pencil for moving semiconductor packages A magnetic pencil for moving semiconductor devices is disclosed, which includes a tubular housing provided with two pin holes; a hollow push rod inserted into the housing, and having guide slots at positions corresponding to the pin holes of the housing, ...	11/28/1995
5449211	Grapple fixture for use with electromagnetic attachment mechanism An electromagnetic attachment mechanism for use as an end effector of a remote manipulator system. A pair of electromagnets 15A,15B, each with a U-shaped magnetic core with a pull-in coil 34 and two holding coils 35,36 are mounted by a spring suspension s...	09/12/1995
5435613	Magnetic lifting apparatus A magnetic lifting apparatus includes a plurality of magnetic substances, a plurality of pairs of first permanent magnets, a plurality of rotors having a pair of second permanent magnets, respectively, and an on/off switch handle connected to the rotors w...	07/25/1995
5433492	Ferrous chip removal tool A tool is provided for removing ferrous chips, such as those that fall into the interior of a steel pipe when an opening is drilled into the pipe. The tool has a stem arranged so that a rod can be attached to the upper end to manipulate the tool. A magnet...	07/18/1995
5430945	Manually pivotable magnetic unit on a can opener for holding and releasing the cut lid of a can The invention is a unit that is attachable to a side face of a handle of a can opener, which unit is manually operable to engage a magnet upon the lid of a can so as to magnetically hold the lid from dropping into the contents of the can as it is cut away...	07/11/1995
5429402	Magnetic broom utilizing flexible magnetic fingers Magnetic finder fingers, made of a flexible magnetic material are positioned in a holder in a manner to provide independent movement for each. The independent movement permits the fingers to be swept over a surface to retrieve metallic objects. An alterna...	07/04/1995
5411304	Grab bucket of electrohydraulic pressure type with lifting magnet The grab bucket of the present invention comprises the grabbing claws provided for opening and closing around the main body suspended from a crane, the electromagnet provided movably upward and downward from the ordinary location just underneath the main ...	05/02/1995
5395148	Magnetic rake A magnetic sweeping device includes an integral non-metallic housing with a longitudinal slot containing spaced apart magnets, the housing having a streamlined shape with rounded ends and having a non-metallic semi-circular cylindrical cuff with a diamete...	03/07/1995
5391036	Magnetic transfer device A transfer device especially suitable for transferring a minute electronic component part from a first location and position to a second location and position, the component part having critical facet sides of high integrity and at least one non-critical ...	02/21/1995
5381319	Telescopic shaft magnetic retriever with illuminating means A telescopic shaft magnetic retriever includes a telescopic shaft having a battery holder at the tip thereof to hold an insulative socket and a battery, a lamp holder fastened to the battery holder to hold a lamp, and a transparent tube fastened to the la...	01/10/1995
5372063	Press for forcing liquid from canned solid foods A body member of a press has a peripheral imperforate side wall and an imperforate end wall, the end opposite from the imperforate wall being open. The press has a lid-engaging portion capable of abutting a severed but remaining lid of a can and utilizing...	12/13/1994
5348359	Retriever tool with interchangeable accessories An electromagnetic pick-up retriever tool having a number of interchangeable accessories to assist in locating, illuminating, viewing and retrieving both magnetic and non-magnetic objects such as small mechanical parts. The tool has a pistol-like handle w...	09/20/1994
5339473	Tapping chip extractor tool A tool includes an elongate shank having an extractor threaded screw member, including a barbed projection extending therefrom to secure chips within a priorly tapped blind bore. The barbed tip is of magnetic material to enhance securement of chips relati...	08/23/1994
5310304	Load-lifting device A load-lifting device includes a load carrying beam at whose underside are arranged load-lifting magnets and which has on both sides vertical support columns, wherein securing arms of a load securing device are arranged on the vertical support columns so ...	05/10/1994
5295432	Can drainer including magnetized plate and splash guard A hand utensil for draining liquid from canned foods, or for removing can lids after opening and of the type have a receiver base unit (30) with a fixed handle (36) which contains a pass through shaft (32, 34) containing a spring (18) in which the T shape...	03/22/1994
5294162	Grabber apparatus A new and improved grabber apparatus includes first and second clamping arms having clamping fingers, a pivot for the clamping arms permitting them to move back and forth from a clamping to a non-clamping orientation, a spring for biasing the clamping arm...	03/15/1994
5288119	Battery replacement and magnetic pickup apparatus An apparatus for removing and replacing small batteries in electronic devices such as hearing aids or handling small magnetic parts has a housing in which a reciprocating shaft is placed having a magnet at one end. When the reciprocating shaft is placed i...	02/22/1994
5265887	Magnetic pickup tool A magnetic pickup tool including a length of highly flexible tubing with a permanent magnet secured to one end of the tubing. Removably positioned within the interior of the flexible tube is a [stiffening means] stiffener such as a length of iron wire of ...	11/30/1993
5261714	Electromagnetic pickup tool A magnetic pickup tool includes an elongated, flexible, tubular, conductive shaft connected to a handle at one end and to an electromagnet at the other end. The handle is an electrically conductive tube housing batteries and a push-button switch for conne...	11/16/1993
5249832	Magnetized opener/closer for zippers This invention is a magnetized opener/closure for zipper-type slide closures and includes an elongated handle with a 90° bend or elbow at one end thereof. A magnetized disk with a hook extending outwardly from the center thereof is mounted on the outer e...	10/05/1993
5232256	Can pickup apparatus An elongate shaft has a support plate cooperative with bifurcated legs to secure a can therebetween, with the legs operative through an actuator handle mounted at an upper end of the shaft structure to include a pistol handle having a cable directed throu...	08/03/1993
5205702	Device for introducing rolled-steel sections into a cold shear Apparatus for introducing rolled steel into the entrance of a processing machine such as a cold shear or straightening machine including a roller path for carrying the steel sections at a speed of transport in a direction of transport toward one of the sh...	04/27/1993
5169193	Magnetic pickup tool A magnetic pickup tool including a length of highly flexible tubing with a permanent magnet secured to one end of the tubing. Removably positioned within the interior of the flexible tube is a stiffening member such as a length of iron wire of about the s...	12/08/1992
5159739	Sanitary equipment handler having magnetically held, detachable handle A device to allow health practitioners' cabinet drawers to be opened and operating lights and other movable operating equipment to be repositioned as he works, without the need to grasp, and thereby contaminate, the existing handles. The device comprises ...	11/03/1992
5152031	Non-contaminating handler A device to allow health practitioners' cabinet drawers to be opened and operating lights and other moveable operating equipment to be repositioned as he works, without the need to grasp, and thereby contaminate, their handles. The device comprises magnet...	10/06/1992
5145227	Electromagnetic attachment mechanism An electromagnetic attachment mechanism for use as an end effector of a remote manipulator system. A pair of electromagnets 15A, 15B, each with a U-shaped magnetic core with a pull-in coil 34 and two holding coils 35,36 are mounted by a spring suspension ...	09/08/1992
5125601	Payload retention device A payload retention device (10) for grappling and retaining a payload (14) in docked position on a supporting structure (18) in the cargo bay of a space vehicle. The device comprises a two-fault tolerant electromagnetic grappling system comprising electro...	06/30/1992
5074742	Parts feeding method and apparatus A method and apparatus are described for conveying and supplying a part, such as a projection nut, to a predetermined point in space. The apparatus comprises a telescopic supply rod including an outer and inner shaft, two magnets being associated with a p...	12/24/1991
5070563	Tool bearing rings A device in the form of a ring for wearing on a finger bears a variety of implements including a magnetic pick-up for engaging ferromagnetic objects. It may include other tools such as screwdriver blades, line cutters, prying claws, glass cutters and the ...	12/10/1991
5067763	Parts supplying apparatus A parts supplying apparatus for carrying and supplying a part such as a projection nut to a predetermined point in space comprises a telescopic supply rod including an outer and inner shaft, and a magnet being fixed to a proximal end of one of the two sha...	11/26/1991
5065537	Changeable letter sign system A changeable letter sign system including a plurality of panels, each bearing a letter, character or other suitable indicia and combinable on an overhead readerboard to display a message thereon, each of the panels having magnetically attractive material ...	11/19/1991
5062855	Artifical limb with movement controlled by reversing electromagnet polarity A material handling system in the form of a grappling device or of a robotic or prosthetic limb is provided which can function for performing work. The system includes a plurality of magnets including at least one electromagnet. In preferred embodiments t...	11/05/1991
5062672	Copy machine remover of paper clips and staples A copy machine paperclip and staple retrieval device with a rigid longitudinally-extending elongated member having a cross-sectional area extending transversely across its longitudinal axis with its cross-sectional area diminished toward its distal end, a...	11/05/1991
5038128	Magnetic gripper A magnetic gripper avoiding the disadvantages of the well-known devices of reduced lifting capacity, increased electric power consumption and small gripping force finds application in mechanical engineering for the transportation of ferromagnetic material...	08/06/1991
5020964	Method and apparatus for robotic transfer of workpieces A robotic apparatus for positioning a tool or work hand that incorporates a compliant wrist effective to adjust to delicate but misaligned portions of the workpiece, comprising (a) structure for magnetically supporting a positioning member carrying a grip...	06/04/1991
4965695	Permanent magnetic retaining device to move, affix or carry ferromagnetic parts or loads with electronic switching of the magnetic flux to release the carried load Permanent magnetic retaining device to move, affix or carry ferromagnetic parts or load with electronic switching of the magnetic flux to release the carried load includes a central iron core enclosed by a pair of magnet blocks secured by iron shoes, late...	10/23/1990

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Class 294/65.5 - MAGNET