Patents Examined by David A. Tone
  • Patent number: 4888449
    Abstract: A semiconductor package for an electrical component which has a metal or metal alloy leadframe with first and second surface, which leadframe is adapted to have an electrical component connected thereto. The leadframe is bonded by means of a polymer to a copper or copper alloy base member. The leadframe is also bonded by means of a polymer to a copper or copper alloy cap member. The cap and base members have coated to their inside surfaces a metal or metal alloy. The coating improves the polymer bond between the leadframe and the base and cap members. The surface area of the base member is increased to transfer more heat from the silicon chip in the semiconductor package and to reduce the thermal stresses between the silicon chip and the base member.
    Type: Grant
    Filed: January 4, 1988
    Date of Patent: December 19, 1989
    Assignee: Olin Corporation
    Inventors: Jacob Crane, Barry C. Johnson, Deepak Mahulikar, Sheldon H. Butt
  • Patent number: 4885429
    Abstract: A connector for metal clad cable that is easily made up and disassembled and is readily reusable. The connector includes a tubular body, a split grounding ring with straight and angled leading tines and angled trailing tabs slidably received in the body, an annular rubber grommet engaging the tabs on the grounding ring and received in the body, and a tubular closure threaded to the body for maintaining the grounding ring and grommet therein. The metal clad cable can be easily coupled to the connector by merely inserting an end of the cable through the closure, grommet and grounding ring, the angled leading tines and grommet engaging the outer surface of the cable. The cable can be easily uncoupled from the connector by unthreading the closure, pulling the cable out of the tubular body with the grounding ring and grommet attached thereto, and removing the ring and grommet from the cable. Since the grounding ring is split, it is readily removed from the cable and can be reused.
    Type: Grant
    Filed: January 10, 1989
    Date of Patent: December 5, 1989
    Assignee: Hubbell Incorporated
    Inventor: William E. Schnittker
  • Patent number: 4883924
    Abstract: An electrical outlet fitting for electrical raceways which are buried in concrete floors. The fitting includes an attaching ring assembly for securing the fitting to the top of the raceway, an adjusting ring assembly to ensure proper alignment with the floor surface, and a closure assembly which provides for the passage of electrical conductors.
    Type: Grant
    Filed: July 20, 1988
    Date of Patent: November 28, 1989
    Assignee: Butler Manufacuting Company
    Inventor: Robert W. Hadfield
  • Patent number: 4882453
    Abstract: A wire management assembly for mounting on a wall or panel of a work station or office for supporting and concealing communication wires, power plug-in cords and extension cords of electrical equipment and devices. It consists of an extruded aluminum housing having a downwardly facing opening for receiving wires to be supported in the housing. Metal clips connect to the aluminum housing and in turn are connected to brackets which mount in slots formed in standards located at the ends of the panels. A cover is provided for mounting on the aluminum housing and to extend downwardly to the work surface to conceal wires and equipment located on the work surface below the aluminum housing. The cover has a hook that fits into a groove formed in the aluminum housing to hingedly lock the cover to the housing.
    Type: Grant
    Filed: October 5, 1988
    Date of Patent: November 21, 1989
    Assignee: The Shaw-Walker Company
    Inventor: Daniel B. Chelsea
  • Patent number: 4879435
    Abstract: A fitting mounted on the bottom of a cell in a cellular raceway. A hollow cylindrical member engages and is secured to the bottom of the cell in alignment with a bore in the bottom. A junction box is mounted on the lower end of the cylindrical member and has an opening aligned with the member. Intumescent wafers are inside of the cylindrical member and are formed to permit passage of conductors. Discs restrain the intumescent wafers from expanding into the cell and junction box. Electrical conductors can extend from the junction box to the cell.
    Type: Grant
    Filed: August 9, 1988
    Date of Patent: November 7, 1989
    Assignee: Butler Manufacturing Company
    Inventor: Charles N. Domigan
  • Patent number: 4874904
    Abstract: An outlet box having a frontal opening and faceplate assembly including an insert received within the outlet box and defining a forwardly opening bore and a faceplate mounted on the outlet box and forming a closure for the frontal opening. A fiber optic bulkhead connector is mounted on the faceplate for coupling to an elongated optical fiber, a portion of which is stored in coiled condition within the bore. When the faceplate is removed from the outlet box, the coiled portion of the fiber allows the faceplate to be moved a substantial distance from the outlet box for access to the coupled connection between the optical fiber and the bulkhead connector without subjecting the fiber to excessive bending stress.
    Type: Grant
    Filed: April 14, 1988
    Date of Patent: October 17, 1989
    Assignee: Brintec Corporation
    Inventor: Raymond J. DeSanti
  • Patent number: 4874905
    Abstract: An electrical ceiling box has an entrance port which is substantially closed by a cable clamp including an elongated tab hingedly connected at one end to a wall of the box. Near the other end of the tab is an arcuate wall extending from the inner surface of the tab. The wall has a concave surface facing toward the distal end of the tab. The concave surface is shaped and dimensioned to receive the end of a finger so that the installer can engage the tab to swing into the box and insert a cable through the port. At the base of the concave surface is a recess shaped and dimensioned to receive the end of a screwdriver blade to allow a screwdriver to be used for opening the port.
    Type: Grant
    Filed: October 31, 1988
    Date of Patent: October 17, 1989
    Assignee: Hubbell Incorporated
    Inventors: Kenneth R. Schnell, Gregory J. Kesler
  • Patent number: 4874906
    Abstract: A weatherproof outlet cover fits over an outdoor electric outlet and includes a mounting plate demountably secured to the outlet housing in place of a conventional face plate and a lid member demountably and pivotably mounted over the mounting plate, accommodates at least one electrical plug plugged into a receptacle in the outlet. At least one access slot is provided in the bottom of the lid member for enabling a corresponding number of electrical cords from the plugged in plugs to be extended therethrough. A first sealing member is disposed between the mounting plate and the wall surrounding the outlet housing and a second sealing member is disposed between the lid member and the mounting plate to prevent foreign matter from entering the outlet.
    Type: Grant
    Filed: December 14, 1988
    Date of Patent: October 17, 1989
    Inventor: Michael J. Shotey
  • Patent number: 4873396
    Abstract: A cover plate having a back surface defining a covered M groove is presented. The cover plate M groove is hooked over one screw of an electrical wiring device. The second screw then screws into the cover plate and sits deep in the cover plate screw groove. A decorative cover or plug then covers the second screw, so that no screw shows on the front surface farthest from the wall after installation and the cover plate is securely coupled to the wall by the installation of only one mounting screws, rather than two as required by prior art cover plates.
    Type: Grant
    Filed: April 21, 1988
    Date of Patent: October 10, 1989
    Assignee: Texim International
    Inventor: Hossein F. Guity-Mehr
  • Patent number: 4873395
    Abstract: A personal computer CPU chassis (10) is sealed from the emission of radio frequency (RF) through the expansion slots (24) in the rear panel (18). An expansion slot seal (37) is dimensioned to fit over the edges or strips (32-34) of the slots (24) and is held in place by a slot cover (26). The seal (37) has a flat portion (46) for direct contact with the strips (32-34) and an angled portion (48) for direct contact with the cover (26). The cover (26) is held in place by a screw (54) and a retaining device (60) which forces the cover (26) into the seal (37). Thus a metal-to-metal seal is formed around the expansion slots (24) to inhibit the emission of RF therefrom.
    Type: Grant
    Filed: November 14, 1988
    Date of Patent: October 10, 1989
    Assignee: CompuAdd Corporation
    Inventor: Thomas R. Mast
  • Patent number: 4871884
    Abstract: An electrical connecting box having improved water discharging properties. The connecting box includes a box body and a bus bar circuit board. The bus bar circuit board is sloped to defined a sloped surface having a predefined angle of inclination from a horizontal plane. This may be done either by mounting the box body at an inclined angle, or by inclining the bus bar circuit board with respect to the box body. A water discharge hole is formed in a bottom plate of the box body.
    Type: Grant
    Filed: April 20, 1988
    Date of Patent: October 3, 1989
    Assignee: Yazaki Corporation
    Inventor: Hideharu Hayashi
  • Patent number: 4868349
    Abstract: A molded pin-grid-array package includes a heat sink available at the face opposite to the pins. The heat sink is secured to a printed wiring board that has plated through holes therein that form the desired pin-grip-array and wires are secured in the holes to form the package pins. The heat sink covers an aperture in the board and the semiconductor die is secured to the heat sink inside the cavity thereby formed. After the semiconductor die is attached and the bonding pads connected to the metal traces on the board, the assembly is placed in a transfer mold. Plastic encapsulant is then transfer molded to encapsulate the semiconductor die and to extend flush with the heat sink to form a skirt around the periphery of the board. This leaves the molded package with an available heat sink face for efficient cooling after the package is mounted for ultimate use.
    Type: Grant
    Filed: May 9, 1988
    Date of Patent: September 19, 1989
    Assignee: National Semiconductor Corporation
    Inventor: Chok J. Chia
  • Patent number: 4864080
    Abstract: A terminator fitting useful for connecting corrugated tubing to an electrical outlet box and including a cylindrical collar having first and second ends and a rib projecting radially inwardly from the collar for engaging an external rib on corrugated tubing placed within the collar. The collar carries circumferentially-spaced, axially projecting projections on one of its ends, with each such projection including a wedge-shaped free end portion. Each wedge-shaped end portion is joined to the first end of the collar by a web portion. The web portion, free end portion and collar define a groove for engaging the side wall of an outlet box when the arcuate projections are forced through an opening in the box to secure the fitting in the box. A plurality of blocking flanges are included in the terminator fitting with each blocking flange extending in a circumferential direction from a lateral edge of one of the wedge-shaped free end portions.
    Type: Grant
    Filed: June 1, 1987
    Date of Patent: September 5, 1989
    Assignee: The Carlon Company
    Inventors: Helmut P. Fochler, Joseph Urkewich, Daryl J. Sauerbrei
  • Patent number: 4864076
    Abstract: An electromagnetic shielding and environmental sealing device includes an elastomer strip that is attached to a metal strip. The metal strip includes a base member and a plurality of fingers that extend from one edge of the base member at an angle. The elastomer strip includes a base portion, an extension portion that is attached to one edge of the base portion and extends at an angle with respect to the base portion and a sealing portion that is attached to the opposite edge of the base portion. The base member of the metal strip has a plurality of cut-out areas positioned therein that define contact tabs. The contact tabs are capable of deflecting out of the plane defined by immediately adjoining areas of the base member when a force is applied to the device. In that way, proper electrical contact is maintained with respect to the device and the surface to which it is attached.
    Type: Grant
    Filed: October 24, 1988
    Date of Patent: September 5, 1989
    Assignee: Instrument Specialties Co., Inc.
    Inventor: William H. Stickney
  • Patent number: 4861943
    Abstract: An electrically insulated enclosure for a thermal protector to be used in a lighting fixture includes a body having openings at both ends with a trench therein for guiding the thermal protector through the body. A resilient tab extending from the interior top surface of the body and stops disposed within and near the front of the body lockingly secure the protector to the body. An arm and a pair of legs extending from the bottom of the body serve as fasteners to clip the body to a flat plate stamped within the lighting fixture.
    Type: Grant
    Filed: November 12, 1987
    Date of Patent: August 29, 1989
    Assignee: Triboro Electric Corporation
    Inventor: Martin J. Yarmark
  • Patent number: 4857669
    Abstract: A wall bracket for mounting wiring devices comprises a flat frame having first and second jambs which define therebetween an opening for receiving the body portions of the wiring devices. The wiring device has a strap having mounting ears projecting on either side of the device and is attached to the frame with the mounting ears engaged into first and second slots formed in the frame. The first slots are formed in the first jamb and open to the opening for receiving the mounting ears on one side of the device. The second slots for receiving the mounting ears on the other side of the device are formed in a resilient strip extending along the second jamb in spaced relation outwardly thereof.
    Type: Grant
    Filed: May 4, 1988
    Date of Patent: August 15, 1989
    Assignee: Matsushita Electric Works, Ltd.
    Inventors: Masuo Kitamura, Mitsuhiro Takagi, Masaaki Nakamura
  • Patent number: 4855535
    Abstract: A container for housing electrical apparatus is described. The container has a front panel with affixation means and handles that can be secured for transportation. The front panel can also be opened for access to the internal apparati. The side panels are integrated and reinforced to protect the internal apparati. A connection board is provided to aid in inter connecting the internal apparati. A hinge means is disclosed that allows for self-alignment of the affixation means. Hanger bars are provided for mounting the container on mounting frames. A back panel can also be used during transportation to protect the connection board.
    Type: Grant
    Filed: January 15, 1988
    Date of Patent: August 8, 1989
    Assignee: Autek Systems Corporation
    Inventor: Robert Pereyda
  • Patent number: 4851608
    Abstract: An electromagnetic shielding media and a method for fabricating the same including a honeycomb layer composed of relatively conductive strips continuous in only one direction, adjacent "flat" of the continuous strips being mechanically joined by a substantially non-conductive material, the edges of the respective conductive strip where mechanically joined by the substantially non-conductive being flame spray coated with a relatively electrically conductive material to provide an electrically conductive path between adjacent strips.
    Type: Grant
    Filed: May 8, 1987
    Date of Patent: July 25, 1989
    Assignee: Technical Wire Products, Inc.
    Inventor: Donald P. Seip
  • Patent number: 4851612
    Abstract: A protective enclosure assembly for an electrical outlet having plug receptacles, having a baseplate which fits around the receptacles. The baseplate has a peripheral edge with notches arranged into two of the opposing edges. A transparent housing fits over the baseplate. The housing has a set of full tabs extending from one lower edge thereof, and a main locking and two small tabs extending from its opposite edge.A set of slots are disposed through the housing wall, one slot between adjacent tabs on the multiple tab wall. The housing covers the receptacles when the housing walls are "pinched" so as to flex inwardly the walls, enabling the multiple tabs to mate with the notches on one edge of the baseplate, and enabling the one tab on the opposing wall of the housing to scamp into a notch on the opposing edge of the baseplate edge.The baseplate then safely encloses any electrical cords plugged into the plug receptacles, the cords extending through the slots in one of the sidewalls of the housing.
    Type: Grant
    Filed: September 8, 1987
    Date of Patent: July 25, 1989
    Inventor: Albert E. Peckham
  • Patent number: 4851611
    Abstract: A device for the external connection of electrical cables electrically connected to component elements disposed within a container body comprising ordered housing means through which pass these cables which extend out of the container body.
    Type: Grant
    Filed: April 22, 1987
    Date of Patent: July 25, 1989
    Assignee: Weber S.r.l.
    Inventors: Roberto De Concini, Gianni Fargnoli