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
6957838	Truss lift stiffener A stiffener device for use in moving a truss is disclosed. A crane lift cable is attached to a spreader bar. Two lines from the spreader bar attach to the truss to move the truss using a crane. A stiffener body attachable to the truss by brackets allows the stiffene...	10/25/2005
6951224	Walking support having shoehorn/gripper and magnet accessories A walking stick or cane comprises a support having a foot at one end thereof and a handle at the other. A gripper device adjacent the foot includes a shoehorn assembly pivoted to the support for movement toward and away from the foot for grasping objects between the...	10/04/2005
6931704	Engine valve lifter lifting tool An engine valve lifter lifting tool for lifting valves to clear a camshaft such that the camshaft is replaceable without having to remove the intake manifold includes a plate having a plurality of rods each snugly inserted through a respective alignment tube to perm...	08/23/2005
6920807	Crowbar tool A crowbar tool is disclosed for construction use and particularly for carpentry and roofing work. The crowbar tool has an elongated metal bar with a plurality of extraction teeth at one end of the metal bar and a handle to which the opposite end of the metal bar is ...	07/26/2005
6908759	Method of manufacturing kit for isolation nucleic acids or biological materials The present invention relates to a method of manufacturing a kit for isolating and purifying nucleic acids, or various biological materials, a kit manufactured by the method, and an apparatus using the kit. The method of manufacturing a kit for isolating or p...	06/21/2005
6854777	Magnetic lifting machine using neodymium magnets A magnetic lifting machine according to the present invention is to prevent an antioxidant film on the surface of neodymium magnets from exfoliation, by having the neodymium magnets not be in direct contact with a pair of polarity plates of the machine but via anti-...	02/15/2005
6848143	Scavenging metallic debris from buried metal pipelines A metal-debris magnetic scavenging tool useable inside a buried, horizontal metallic pipeline through an access opening which has been cut into the upper wall portion of the pipeline overhead where the resulting debris has collected. A raiseable/lowerable and rotata...	02/01/2005
6781493	Magnet assembly A magnet assembly for attaching to nails, bolts, metal shavings and other magnetic-conducting objects. The magnet assembly includes an elongate housing having side and end walls, and also having openings in the end walls; and also includes an assembly of producing m...	08/24/2004
6767177	Magnetic lifting system A magnetic lifting system for converting a skid loader into a magnetic lifting apparatus for transporting ferrous metals. The magnetic lifting system includes a platform attachable to a loader of a tractor, an arm member attached to the platform, and a magnet attach...	07/27/2004
6760941	Accessory attachment for magnetic retrieval tool An accessory attachment device for a magnetic retrieval tool includes a ferrous base member having a substantially flat surface for magnetically securing to a magnetic tool and an accessory attachment member extending from the surface; and an accessory member connec...	07/13/2004
6746063	Device for separating, lifting and moving aluminium sheets or other non-ferromagnetic material Device for separating, lifting and transporting sheets of aluminium or other non-ferromagnetic material consisting of a spider attraction assembly provided with a series of blocks of magnets and with contact electrodes, which by way of the effects produced by Lorent...	06/08/2004
6739826	Slab transfer handling system A system for transferring a steel slab from a first roller table to a second roller table by lifting the top slab from a stack of slabs on the first table, and then transferring and lowering the slab onto the second table. Specifically, a gantry-type bridge trolley ...	05/25/2004
6683521	Self-packaged magnetic hand tool assembly A self-packaged magnetic tool assembly has protective components which also serve as retail packaging, to facilitate retail sales without the need for any extraneous or temporary packaging. The magnetic tool assembly has a permanently charged elongated re...	01/27/2004
6677845	Magnetic pick-up tool A magnetic pick-up tool, which preferably features a magnet retained on its non-exposed sides within a ferrous-containing carrier. The ferrous-containing carrier redirects the magnetic forces issuing from the magnet toward the exposed surface area, signif...	01/13/2004
6677846	Modular magnetic tool system A modular magnetic tool system utilizes one or more magnet modules and attachable components to enable selective assembly of a wide variety of magnetic tools. Channels of the magnet modules are connectable in series and in parallel, either by integral con...	01/13/2004
6669024	Sweeper magnet A sweeper magnet for attracting magnetic debris from a pick-up surface includes a base assembly and a magnet having a first surface supported by the base assembly and a second surface. A cover extends over the magnet second surface and includes a projecti...	12/30/2003
6666115	Magnetic driving tool having a telescopic pipe A screwdriver comprises a handle, a hollow outer sleeve, at least an inner pipe, and a bit. The rear end of the outer sleeve connects to the handle. The inner pipe is inserted in the interior of the outer sleeve via the front opening of the outer sleeve. ...	12/23/2003
6663154	Servocontrolled magnetic gripping device A magnetic gripping device having a magnetic assembly in turn having an outer magnetic core, and an inner magnetic core mounted inside the outer magnetic core so as to rotate, about a given axis of rotation, between a first operating position, in which th...	12/16/2003
6663153	Removable attachment device for tape measure A compact, lightweight and small removable device enhances the operation and utility of a tape measure when measuring metallic or nonmetallic structures. The device comprises a flat base, a small, powerful rare earth magnet secured to one side of the base...	12/16/2003
6636153	Sensing system for magnetic clamping devices A sensor system for determining acceptable magnetization between a magnetic clamp and a mold patent for a quick mold change system on an injection molding machine includes secondary sensing coils magnetically coupled with a switchable magnet in the clamp ...	10/21/2003
6592161	Magnetic sweeper with tool receiving space A magnetic sweeper includes an elongated mounting frame, a pair of rotating wheels, and a universal caster. The frame includes a barrier wall disposed behind a guide wall so as to define an axial hole therebetween, and a bottom plate. At least one magneti...	07/15/2003
6538544	Pneumatically actuated magnetic workpiece holder A pneumatically actuated magnetic workpiece holder comprising a housing having a contact surface for contacting a workpiece to be held, and a magnet assembly translationally disposed in the housing, the magnet assembly comprising a plurality of permanent ...	03/25/2003
6537013	Picking mechanism with ventilation system for automated library of memory storage units One embodiment of a picking tool for an automated library of disk drives has an electromagnet, a tapered hole, and a ventilation system. The ventilation system has a box fan with an impeller for moving air through ducting located within the picking tool. ...	03/25/2003
6533638	System and method for engaging a finger board An amusement system that includes a miniature toy skateboard and the mechanism for engaging and lifting the miniature toy skateboard. The miniature toy skateboard is less than six inches long and is referred to as a finger board in the toy industry. The f...	03/18/2003
6511112	Magnetic remote-retrieval device A device (20) for the retrieval of a ferromagnetic object (22) from a remote area is provided. The device (20) contains a retractable tape measure (24) and a magnetic gripping head (26). The tape measure (24) has a blade (30) with a first end (64), an opp...	01/28/2003
6471273	Lifting magnet with roller cam release mechanism The invention is a magnetic lifting device having a lever-operated cam and roller combination, which facilitates removal of the magnetic lifting device from a workpiece, wherein the cam-mounted roller is free to rotate, eliminating the potential for marri...	10/29/2002
6453543	Transport and transfer device Disclosed is a workpiece conveyor and delivery device for a vacuum processing plant. Workpieces are delivered from one device to another, both devices being located opposite each other and moving in relation to each other. A controllable magnet arrangemen...	09/24/2002
6448092	Separation device for microparticles involving a magnetic rod The invention relates to a means for separating magnetic particles from a composition. The means comprises an elongated protective cover (1) that comprises a recess (2) extending from the upper end towards the lower end thereof, the recess comprising a mo...	09/10/2002
6412837	Grapple A grapple provides a body and a tine. The tine has first and second ends and a plurality of arms located at the first end. The arms are separated by a pair of outer slots and at least one inner slot. The inner slot extends further into the tine relative t...	07/02/2002
6403038	Magnetic pin for concentrating and separating particles The invention relates to a magnetic pin (8, 22) for concentrating particles, containing (a) a grip adapter (2, 14), (b) a connecting pin (4, 16) with dents (3, 15), (c) at least one magnet (7, 20) and (d) a sheath (5, 18)....	06/11/2002
6402212	Magnetic sweeper A magnetic sweeper includes a mounting frame with left and right side walls, a rotating shaft with ends journalled in the left and right side walls, and a cylindrical body rotated with and surrounding the rotating shaft. A plurality of permanent magnets a...	06/11/2002
6394519	Adjustable pick-and-place tool for an automated robotic device or the like Provided is a fully adjustable pick-and-place tool for an automated robotic device or the like which is capable of picking and placing various kinds of parts. The tool includes a plate and a magnet movably attached to the plate to pick-and-place parts hav...	05/28/2002
6392517	Magnetic retrieval tool with increased flux A magnetic retrieval tool, includes a magnet holder having a cylindrical wall having a rear portion and a front portion, the wall defining a space for holding a magnet, the wall decreasing in thickness from the rear portion toward the front portion, and a...	05/21/2002
6354791	Water lift mechanism with electrostatic pickup and method for transferring a workpiece A method and apparatus for transferring a semiconductor wafer in both a theta axis and a z-axis is provided. The apparatus is able to maintain maximum process and wafer throughput while minimizing the footprint of the processing machine by utilizing the c...	03/12/2002
6331810	Magnetic lifting apparatus A magnetic lifting apparatus by using neodymium magnets, incorporating a plurality of polarity plates (10) disposed with a predetermined interval and having non-magnetic medium (11) in the longitudinal center; a plurality of interval members (20) disposed...	12/18/2001
6325433	Magnetic metal object retriever with cover A magnetic metal object retriever 10 with cover 20 having a magnet 140 for attracting metal objects 250. The magnet 140 is connected to an extendable handle 40 and covered by a cover 20. The magnetic metal object retriever 10 with cover 20 is used to gath...	12/04/2001
6321626	Magnetic driving tool having a telescopic pipe A driving tool includes a barrel and a handle secured to one end of the barrel for rotating the barrel. The barrel includes an engaging opening formed in the other end for engaging with a tool bit and a fastener. A telescopic pipe is engaged in the bore o...	11/27/2001
6315340	Multifunctional pick-up tool A multifunctional pick-up tool comprises: a central shaft disposed in a tubular body; a battery chamber jointed with the tubular body for storing a battery pack; at least a bulb located at the bottom end of the tubular body; a bundle of conductive cords a...	11/13/2001
6312138	Lighted magnetic retrieval tool A lighted magnetic retrieval tool includes a magnet member having a pickup surface and an opening in the pickup surface; and a light member for directing light through the opening whereby light can be directed at objects to be retrieved with the pickup su...	11/06/2001
6292078	Manually controlled magnetic anchoring device A manual magnetic anchoring device includes a monolithic ferromagnetic block, whereon a housing for stator magnets, a housing for a rotor core, a ferromagnetic crown for short circuiting of the magnetic flux during deactivation of the anchoring device, an...	09/18/2001

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Class 294/65.5 - MAGNET