Magnetic Patents (Class 220/230)
  • Patent number: 5456373
    Abstract: A cover plate assembly for a wall box mounted in an opening in a wall, the wall box having at least one pair of tabs provided with threaded holes on standard centers adapted to receive screws mounting at least one electrical circuit device within the wall box. The assembly includes a frame situated to overlie the wall surrounding the opening in which the wall box is mounted, the frame having an inside perimeter dimensioned to surround the wall box, and inwardly projecting flanges having openings to overlie the threaded electrical device mounting holes for engagement by the electrical circuit device mounting screws. The assembly also includes a safety plate overlying and fixed to each electrical circuit device, each safety plate having an outer edge dimensioned vertically to overlie the frame inwardly projecting flanges and dimensioned horizontally to cover the space occupied by the electrical circuit device to which each safety place is fixed.
    Type: Grant
    Filed: August 23, 1993
    Date of Patent: October 10, 1995
    Assignee: DS Inc.
    Inventor: Douglas K. Ford
  • Patent number: 5409275
    Abstract: A retaining device for an electronic apparatus comprising a plurality of cases respectively containing individual component mechanisms of a small electronic apparatus, a magnet disposed in a recess formed in a surface of a first case among the plurality of cases; and a magnetic member provided on a second case among the plurality of cases. In this device, the magnet attracts the magnetic member to fix the respective positions of the first case and the second case relative to each other when the first case and the second case are set contiguously with the magnet and the magnetic member disposed opposite to each other.
    Type: Grant
    Filed: March 1, 1994
    Date of Patent: April 25, 1995
    Assignee: Fujitsu Isotec Limited
    Inventors: Norihiro Yoshida, Yukio Saito, Tomoyuki Nagamine, Takumi Kawamura, Masaki Okuyama
  • Patent number: 5405037
    Abstract: A container closure and locking system, for selectively allowing access to a container having a lip, comprising a container cap, and a key. The key further comprises a magnet. The container cap further comprises an upper cap, a lower cap, a latch mounted between the upper cap and lower cap, and a center spring. The upper cap and lower cap are rigidly attached to one another. The latch has a lower latch, which grasps the lower cap and the lip. The latch has an upper latch and a fulcrum. The fulcrum attaches to a pivot point on the upper cap. The center spring is mounted between the upper cap and lower cap. The center spring presses against the upper latch, to bias the fulcrum against the pivot point, to maintain the lower latch in position grasping the lip. The magnet acts upon the latch, pulling the lower latch away from the lip to release the container cap from the container.
    Type: Grant
    Filed: March 14, 1994
    Date of Patent: April 11, 1995
    Inventor: Ludwig A. Piron
  • Patent number: 5363745
    Abstract: A teapot or other beverage vessel has an internal rim at the top supporting a filter cup which grips onto the rim. A magnetic lid fits onto the rim of the filter cup. Tea leaves and other particles are thus confined within the filter cup and the lid is held magnetically in place.
    Type: Grant
    Filed: November 30, 1993
    Date of Patent: November 15, 1994
    Inventor: Hsiang-Cheng Lin
  • Patent number: 5361555
    Abstract: A device for patching chemical tanks or tank cars comprised of a housing, at least a pair of electromagnets, and a seal which is secured to a pressure system which is secured to the housing, wherein the pressure system permits the seal to be extended from the housing against the surface of a tank or tank car.
    Type: Grant
    Filed: May 3, 1993
    Date of Patent: November 8, 1994
    Inventor: Jack Walker
  • Patent number: 5351812
    Abstract: A palette case is provided with a gasket and magnets to create a controlled humidity environment for the temporary storage of wet paints and other materials on a palette. First and second case portions form an enclosure for storage of the palette when the case is closed. A gasket is disposed between the first and second case portions around the entire periphery of the enclosure, and two magnets, or a magnet and ferric metal, are disposed on the first and second case portions, respectively, around the periphery of the enclosure. The case may be provided with one or more storage compartments for brushes, paint tubes, and other supplies. These storage compartments are covered by the stored palette.
    Type: Grant
    Filed: October 6, 1992
    Date of Patent: October 4, 1994
    Inventor: Colleen M. Eagon
  • Patent number: 5339952
    Abstract: Disclosed is a transfer container for carrying circuit panels in and between substantially contaminant free environments. The walls of the transfer container are fabricated out of substantially particulate free, unfilled polymers, such as polycarbonate. One of the end walls is an access wall. The access wall has an opening surrounded by a ferromagnetic gasket. This gasketed opening is adapted to receive a ferromagnetic door panel. The side walls, and the top and bottom walls may extend beyond the access wall, with the ends of said walls defining a plane, so that the access wall is recessed with respect to the plane defined by the said extensions. Each of the side walls have co-planar bracket pairs for holding circuit panels. Either one of, or preferably both brackets of a bracket pair have pyramidal or conical positioning pins. These pins extend upwardly from the brackets and are adapted to receive and hold a workpiece in place.
    Type: Grant
    Filed: June 19, 1992
    Date of Patent: August 23, 1994
    Assignee: International Business Machines Corporation
    Inventors: Lewis C. Hecht, Merritt P. Sulger, deceased, Ernst E. Thiele, Mark V. Pierson, Lawrence E. Williams
  • Patent number: 5249702
    Abstract: A beverage container includes a cylindrical container formed with a mounting bracket fixedly secured to a wall of the container for securement to a support plate portion, with the support plate portion including a mounting head received within the bracket. A modification of the invention includes a lid structure arranged to receive the cylinder formed with a matrix of apertures directed therethrough, with a saturated sponge including a nutrient fluid contained therewithin to permit the nutrient fluid to be directed into a surrounding drinking fluid within the container. A plurality of such nutrient cylinders are arranged for mounting within an associated support container arranged for transport by an individual in association with the drinking container of the invention.
    Type: Grant
    Filed: January 24, 1992
    Date of Patent: October 5, 1993
    Inventors: Kathy R. Topp, W. Lawrence Topp
  • Patent number: 5224620
    Abstract: A magnetic fuel tank cap is provided for closing off the filling inlet tube of a motor vehicle which consists of an externally threaded cylindrical shank, which threadably engages with the filling inlet tube of the motor vehicle. A head is secured to the shank and is larger than the shank. When the head is turned to drive the shank into the filling inlet tube, the head will seal the filling inlet tube. A magnet is on top of the head for releasably connecting the head, when inverted, to a metallic part of the motor vehicle after the shank is removed from the filling inlet tube. In other embodiments adaptors are provided to releasably connect the head of a conventional fuel tank cap to the metallic part of the motor vehicle.
    Type: Grant
    Filed: June 12, 1992
    Date of Patent: July 6, 1993
    Inventors: Sahr A. A. Nyorkor, George Spector
  • Patent number: 5135012
    Abstract: A compact case has a lid which forms a joint with an associated base when the lid is in its closed position relative to the base. A magnetic sealing mechanism positively seals substantially the entire length of the joint. The magnetic sealing mechanism can also function to releasably and moveably secure cosmetic product containers and cosmetic implements and accessories to the compact case.
    Type: Grant
    Filed: April 9, 1991
    Date of Patent: August 4, 1992
    Assignee: Revlon, Inc.
    Inventors: Melvin Kamen, Philip Bernstein
  • Patent number: 5102003
    Abstract: An automotive crankcase drain plug retainer is formed by placing a relatively thin washer around the drain plug, between its head and the adjacent surface of the crankcase.A permanent magnet mounted in a casing is connected with a radial tab on the washer by a flexible element. The casing magnetically contacts a crankcase to be drained, having the washer previously installed on its drain plug. The flexible element suspends the drain plug and washer when removed from the crankcase.
    Type: Grant
    Filed: August 6, 1990
    Date of Patent: April 7, 1992
    Inventors: John T. Oswald, Sarah Oswald, Clarence E. Poister
  • Patent number: 5067625
    Abstract: A device for opening and closing a lid of a box consisting of a housing and the lid includes a first link having one end linked to the housing at the edge of the opening and the other end linked to the lid and a second link extending parallel to the first link and having one end like the aforesaid one end of the first link linked to the lid and the other end linked to the housing at the edge of the opening. The lid is supported such that it can be opened and closed in two directions about the links.
    Type: Grant
    Filed: June 1, 1990
    Date of Patent: November 26, 1991
    Assignee: Nifco Inc.
    Inventor: Masanori Numata
  • Patent number: 5065867
    Abstract: This invention pertains to an insulated lunch box that is able to maintain different items such as food and drink at different temperatures. It is composed of two compartments or sections, each able to maintain its contents hot or cold. The lunch box is intended for use when traveling in a vehicle such as an automobile, truck or RV. It is able to use the vehicle's warm hood to heat food. This lunch box can also be used to protect the locks of a vehicle from freezing rain and ice storm by covering and insulating them.
    Type: Grant
    Filed: October 9, 1990
    Date of Patent: November 19, 1991
    Inventor: Henry M. Alfredson
  • Patent number: 5027966
    Abstract: A removable cap for use with a test tube or the like has metallic characteristics associated therewith, in order to facilitate the handling of the test tubes in hostile environments. The cap has a recess provided therein which extends from a first surface toward a second surface. A metallic member is positioned in the recess and a second cap member is positioned over the recess, the second cap member cooperating with the recess to maintain the metallic member in position in the recess. The cap is attached to the test tube, so that when a magnetic rod is position over the removable cap, the metallic member is attracted to the magnetic rod, causing the cap and test tube to be moved.
    Type: Grant
    Filed: September 12, 1989
    Date of Patent: July 2, 1991
    Inventor: David J. Yadock
  • Patent number: 4858454
    Abstract: A vehicle lock protecting device particularly for protecting automobile door lock, which device comprises a base secured about the lock, the base having a hinged cover and characterized by an opening which fits about the lock. A resilient material, such as a compressible fiber or a foam material within the cover, is placed in a compressive sealing relationship with the face of the lock and across the lock key entrance when the cover is in a closed position. A latch mechanism or permanent magnets in the cover permit opening of the cover for use of the lock and provide the fiber or foam material to be held in a sealing compressible position against the lock surface when the lock is not in use and the cover is in a closed position.
    Type: Grant
    Filed: January 21, 1988
    Date of Patent: August 22, 1989
    Inventor: Frederick J. McAnulty, III
  • Patent number: 4820086
    Abstract: A pneumatic tube carrier system (10) includes a first carrier receiving and sending terminal (11) and a second carrier receiving and sending terminal (13). A carrier (20) is transported back and forth between the terminals (11,13) through a pneumatic tube (12) interconnecting the first and second terminals. Means are operatively associated with at least one of the first and second terminals for automatically removing contents from the carrier at the at least one terminal before returning the carrier to the other terminal. A cover (30) is held on the carrier by magnetic attraction and without hinges or latches.
    Type: Grant
    Filed: January 6, 1987
    Date of Patent: April 11, 1989
    Assignee: Donald R. Gilreath
    Inventor: John P. Kieronski
  • Patent number: 4787488
    Abstract: A piece of luggage is disclosed which consists of a case in the shape of a flat parallelepiped comprising two greater rigid lateral walls and a rigid quadrangular frame with an upper side provided with a curved handle, a base side and end sides. At least one of its lateral walls is movable, being provided with a rigid perimetral edge which slides telescopically within the frame. Displacement of this lateral wall occurs in a direction perpendicular to its plane between a retracted position in which it is located in the plane of the corresponding edge of the frame and a projecting position. The result is that the internal volume of the case is increased.
    Type: Grant
    Filed: May 11, 1987
    Date of Patent: November 29, 1988
    Inventor: Giorgio Campanini
  • Patent number: 4727984
    Abstract: Impregnable locking system of the fastening of display-boxes called "blisters", consisting of a box in two articulated halves having on the side opposite their hinge fastening flaps destined to be held one against the other by this system, characterized in that it consists of a clip destined to cover these two flaps, and between which is attached a transverse shaft, a vertical notch made in the flaps allowing this shaft to go through when the clip is put into place, two gears which being slid onto this shaft, between the outer side of each flap and the corresponding side of the clip. A device is provided so that these gears are constantly pushed towards each other, and once this clip is placed on the flaps, the gears come to rest in lodgings made in the outer sides of the flaps, thereby immobilizing the clip onto the flaps.
    Type: Grant
    Filed: February 18, 1986
    Date of Patent: March 1, 1988
    Assignee: Microtechnic S.A.M
    Inventor: Gilbert Bennardo
  • Patent number: 4706834
    Abstract: An apparatus for protecting the open end of the female half of a metallic hydraulic line coupler when the female half is not coupled to the male half of the coupler is provided. The apparatus includes a magnetic cover member releasably attachable to the female half of the coupler by the exertion of magnetic force thereon. The cover member has a first surface which completely covers the open end of the female half of the coupler when the cover member is magnetically attached thereto. Magnetic force deflecting means are attached to the magnetic cover member for redirecting at least a substantial portion of any of the magnetic force directed away from the female half of the coupler toward the female half of the coupler.
    Type: Grant
    Filed: February 6, 1987
    Date of Patent: November 17, 1987
    Inventors: Michael K. Farney, Jackson Kile
  • Patent number: 4634512
    Abstract: A carrier is provided to hold a central apertured disk while magnetic material is plated simultaneously on the annular surfaces on both sides of the disk. The carrier contains a first opening substantially the same diameter as the disk and a second opening formed about a center line offset from the center line of the first opening so as to form a recess around a portion of the edge of the first opening. The disk is inserted into the first opening and recess to block the flow of plasma and impurities from one side of the disk to the other during the disk surface coating. A two-part plug is provided for placement in and sealing the center aperture of the disk. One plug part contains a spring or magnetic means for holding the two parts together within the disk. The plug includes a knob for handling, carrying and mounting or removing the disk from the carrier.
    Type: Grant
    Filed: November 15, 1985
    Date of Patent: January 6, 1987
    Assignee: Komag, Inc.
    Inventors: Ronald Allen, Tu Chen
  • Patent number: 4577750
    Abstract: Impregnable locking system of the fastening of display-boxes called "blisters", consisting in a box in two articulated halves having on the side opposite their hinge fastening flaps destined to be held one against the other by this system, characterized in that it consists in a clip destined to cover these two flaps, and between which is attached a transversal shaft, a vertical notch made in the flaps allowing this shaft to go through when the clip is put into place, two gears being slid onto this shaft, between the outer side of each flap and the corresponding side of the clip, the means being provided so that these gears are constantly pushed towards each other, and once this clip placed on the flaps, the gears come to rest in the lodgings made in the outer sides of the flaps, therefore immobilizing the clip onto the flaps, external means being provided to push the gears in the opposite direction to take them out of the lodgings to allow the extraction of the clip and to free the flaps of the blister to all
    Type: Grant
    Filed: July 15, 1985
    Date of Patent: March 25, 1986
    Assignee: S.A.M. Microtechnic
    Inventor: Gilbert Bennardo
  • Patent number: 4542545
    Abstract: A generally rectangular open topped vessel with vertical walls around the periphery of a floor consisting of two integrally formed levels, the lower level being at one end providing a footwell and having a drain therein. Near the end of one side wall, in the area where the footwell is located, is a door opening. This door opening has a ferromagnetic faced door stop around the edge. A door is hingedly attached to the edge of the opening such that it swings horizontally inward towards the nearest adjacent end wall. The door has a flange along its two vertical edges and along its bottom horizontal edge. Mounted concentrically on the flange are two magnetic gaskets such that when the door is closed the gakets force a water tight seal with the ferromagnetic plate on the door stop. A second drain is located in the surface of the bottom door stop such that when the door is closed water in the vessel cannot reach the drain due to the sealing of the outer gasket.
    Type: Grant
    Filed: March 12, 1984
    Date of Patent: September 24, 1985
    Inventors: Richard L. Johnson, Carl J. Johnson
  • Patent number: 4451321
    Abstract: A flexible vacuum bag for use in the lamination of glass sheets with an interposed layer of thermoplastic material, said bag having one initially open edge through which the laminations are introduced, and magnetic means for sealing said open edge to render the bag airtight during the laminating process.
    Type: Grant
    Filed: February 16, 1983
    Date of Patent: May 29, 1984
    Assignee: Shatterproof Glass Corporation
    Inventor: Harold E. McKelvey
  • Patent number: 4442962
    Abstract: A cartridge magazine hanger adapted for quick removal of a magazine therefrom using only one hand. The magazine is supported by engagement of at least one of its feed lips with a support on the hanger. The hanger can be attached to the clothing or equipment of the user or it can be mounted on a firearm, a vehicle, a boat, an aircraft, or a stationary structure. The hanger is also capable of serving as a cover to protect the feed mouth of the magazine against entry of extraneous matter, or against damage.
    Type: Grant
    Filed: February 18, 1981
    Date of Patent: April 17, 1984
    Inventor: Daniel D. Musgrave
  • Patent number: 4223799
    Abstract: The present invention pertains to releasable locking mechanism for a hollow circular member such as a fill pipe for an oil tank and cup-shaped closure cap of non-magnetic material which is connectable to the hollow circular member, in combination with a locking member of ferrous material supported by said cap for axial movement vertically relative to the cap and hollow circular member but non-rotatable relative to the cap, one end of the locking member having a configuration that is engageable with the hollow circular member in non-rotatable relationship to prevent rotation of the cap with respect to the hollow circular member when the locking member is in the latter position, the locking member being adapted to be raised from said locking engagement with the hollow circular member by a magnet which may be mounted within a wrench for use with the cap to remove the same from the hollow circular member.
    Type: Grant
    Filed: June 11, 1979
    Date of Patent: September 23, 1980
    Assignee: Time Saving Falls, Inc.
    Inventors: Charles G. Eyster, Holbrook C. Bissell
  • Patent number: 4207982
    Abstract: This invention relates to a pivotal closure for a container. The closure structure includes a collar defining an opening, and associated with the opening is a lid mounted for rotation about an axis generally coaxial with this opening. This lid is further mounted for pivoting about an axis normal to the axis of rotation between a closed position in which the lid closes the opening and an open position in which an aperture defined by the lid and/or the collar allows access through the opening. The rotation of the lid is governed by a cam mechanism operable by pivoting movement of the lid. The can mechanism is, generally, a saw-tooth cam surface associated with either the collar or the lid and a cam follower associated with either the collar or the lid, so that pivoting the lid from a closed position through an open position and back to a closed position causes the lid to rotate about the axis of the opening by an amount determined by the cam surface.
    Type: Grant
    Filed: May 3, 1979
    Date of Patent: June 17, 1980
    Assignee: Sterling Drug Inc.
    Inventors: Donald J. Maxwell, David J. Crisp
  • Patent number: 4202574
    Abstract: This invention relates to a catch or lock mechanism used between a refuse or garbage can and the lid therefor. A substantially U-shaped bracket has the inner curve between its legs slidingly engaged with the undersurface of the lid bead carried by the lower edge of the lid. This may be by a threaded screw engaging with one leg of the U-shaped bracket and extending between the legs thereof to thereby form a sleeve sliding engaging the lid bead. Also, the U-shaped bracket may be movably carried by the U-shaped bracket or the can lid by the use of magnetic means. The U-shaped bracket preferably has a longer inner leg which is urged by spring or magnetic means into engagement under the bead at the top of the refuse can. The other leg of the U-shaped bracket is shorter and preferably terminates in an outwardly and horizontally extending portion for finger engagement thereof for releasing the lid from the can.
    Type: Grant
    Filed: January 15, 1979
    Date of Patent: May 13, 1980
    Inventor: William L. Redmayne
  • Patent number: 4168129
    Abstract: A closure cap which is held on writing instruments by a permanent magnet connected to the cap. The permanent magnet is arranged near the closed end of the cap, has a nearly cylindrical cross section, and has pole shoes on its pole faces, the free ends of the pole faces engaging ferro-magnetic annular parts of the writing instrument when the cap is placed on the latter.
    Type: Grant
    Filed: February 22, 1977
    Date of Patent: September 18, 1979
    Assignee: Montblanc-Simplo GmbH
    Inventor: Gunther Herrnring
  • Patent number: 4110552
    Abstract: An enclosure to ensure EMI and RFI shielding for electronic components and/or protective shielding for mechanical components is disclosed. The enclosure comprises a housing having a bottom, side walls connected to the bottom in a shielding relationship to the components and an opening opposite the bottom. Magnetic means detachably secures a cover to the side walls adjacent the opening to close the opening to complete the shielding of the components. A seal associated with the cover and the magnetic means provides an environmental seal for the opening and enhances the EMI and RFI shielding of the components.
    Type: Grant
    Filed: March 18, 1977
    Date of Patent: August 29, 1978
    Assignee: International Telephone & Telegraph Corporation
    Inventor: Anthony J. Lombardi
  • Patent number: 4060100
    Abstract: A closure for covering and providing access to the interior of a cylindrical pipe or the like is disclosed. The closure has a cap portion and a cover portion, the cap portion being secured to the end of a pipe to which access is desired and the cover is adapted to be releasably attached to cover the aperture in the cap portion. By removing the cover, special tools or the like can be inserted through the aperture of the cap portion for the intended purpose. The closure is preferably made of a nonmetallic material and has a ferromagnetic member attached to the interior of one of the cap and cover portions to enable a metal detector to find the same when the closure is applied below grade.
    Type: Grant
    Filed: May 10, 1976
    Date of Patent: November 29, 1977
    Inventors: Gerald V. Miller, David W. Zeh
  • Patent number: 4045291
    Abstract: A tissue specimen container for pathological use consists of a hollow cylindrical body member which comprises a permanent magnet and ferro-magnetic end closures which are magnetically held against the end faces of the body member to complete the container. At least one of the end closures includes a screen portion for admitting treating fluid to the interior of the container.
    Type: Grant
    Filed: July 15, 1976
    Date of Patent: August 30, 1977
    Inventor: Jacob E. Berger
  • Patent number: 3961721
    Abstract: A removable flexible cover for a metal container with magnetic means incorporated within the cover to secure it in place, while providing hinge means so that the cover may be swung out of position but retained on the container.
    Type: Grant
    Filed: November 28, 1975
    Date of Patent: June 8, 1976
    Inventors: Edwin J. Gordon, Adam I. Gordon