With Sealing To Panel Patents (Class 439/548)
  • Patent number: 9222658
    Abstract: The present invention relates to a hybrid socket for a single-filament or dual-filament bulb consisting of a body made of an insulating material, exhibiting a front cavity for introducing the bulb, of substantially rectangular shape, complementary to the exterior shape of the base. It comprises at least one stopper of complementary cross section to that of the cavity of circular cross section, each traversed by a supply wire crimped onto a metallic contact of a first type, and a third stopper of complementary cross section to that of the cavity of oblong cross section, crimped onto an earth metallic contact. The socket furthermore comprises a locking hook for the bulb. Application: socket for type T20 blinking indicator lights or side lights.
    Type: Grant
    Filed: June 29, 2012
    Date of Patent: December 29, 2015
    Assignee: TBI
    Inventors: Olivier Midy, Nicolas Pasquier
  • Patent number: 9130298
    Abstract: A vehicle includes a body panel defining a pass-through, a grommet sealed against the body panel, an electrical connector having a surface defining a sleeve and a tab, and a walled retainer in the grommet and seated within the pass-through. The walled retainer has a prong formed thereon. The prong is configured to slidably receive the sleeve orienting the electrical connector within the pass-through. The prong further defines a channel terminating a ledge. The channel, ledge, and tab are arranged such that the channel and ledge cooperate to retain the tab to prevent movement of the connector relative to the walled retainer.
    Type: Grant
    Filed: February 19, 2014
    Date of Patent: September 8, 2015
    Assignee: Ford Global Technologies, LLC
    Inventor: Mohammed Michael Baydoun
  • Patent number: 8992249
    Abstract: A shielded connector includes device-side connector which is fixed to a shield case and a cable-side connector which is attached to an end of an external cable and is fitted to the device-side connector. The device-side connector includes a device-side connection terminal, a device-side resin housing, and a device-side shield shell. The device-side shield shell includes a mating shell fixing part which electrically connects the device-side shield shell and a cable-side shield shell.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: March 31, 2015
    Assignee: Yazaki Corporation
    Inventors: Masaki Kobayashi, Norio Sugiyama
  • Patent number: 8317538
    Abstract: Disclosed is a terminating connector comprising a terminating connector housing, fastening means that are embodied monolithically with the connector housing and are used for fixing the terminating connector to a socket, and an insulating member which is rotatably mounted in the terminating connector housing and is used for retaining contact elements that can engage with corresponding contact elements in a socket insulating member.
    Type: Grant
    Filed: October 6, 2006
    Date of Patent: November 27, 2012
    Inventors: Michael Carle, Jörg Zenkner
  • Patent number: 8007314
    Abstract: A compression connector for smooth walled, corrugated, and spiral corrugated coaxial cable includes an insulator disposed within the body, wherein the insulator contains a central opening therein which is dimensioned smaller than a collet portion which seizes a center conductor of the coaxial cable. The connector also includes a clamp disposed inside the body as well as a compression sleeve assembly. An intermediate connector element includes a transitional surface which interacts with the clamp. When an axial force is applied to the compression sleeve, the clamp is forced by the transitional surface into the body, causing the clamp to squeeze onto an outer conductor layer of the coaxial cable. At approximately the same time, the collet portion is forced through the central opening of the insulator, causing the collet portion to squeeze onto the center conductor.
    Type: Grant
    Filed: May 20, 2009
    Date of Patent: August 30, 2011
    Assignee: John Mezzalingua Associates, Inc.
    Inventors: Shawn Chawgo, Noah Montena, Eric Purdy, Danial Robb
  • Patent number: 7727009
    Abstract: A light emitting element assembly for mounting to a panel. The assembly includes a housing configured to receive a light emitting element therein. In addition, the assembly includes a bezel having at least one latch arm extending from a surface of the bezel, wherein the bezel is configured to detachably engage a surface within the housing. The bezel is further configured to retain the assembly in a position relative to the panel. The assembly also includes a mounting structure having the light emitting element operably mounted therein.
    Type: Grant
    Filed: August 1, 2007
    Date of Patent: June 1, 2010
    Assignee: Tyco Electronics Canada ULC
    Inventor: Kazuhiro Goto
  • Patent number: 7658641
    Abstract: The present invention provides a barrel clamp apparatus integrated with an electrical contact, which, with the application of a mating compression nut provides a method of clamping the contact to an electrical cable. In some embodiments the electrical contact is configured to mate with a tapered battery post and in others the electrical contact is a pin or socket arrangement whose wire receiving end has been configured with a barrel clamp configuration. In one embodiment the barrel clamp has been integrated into a band clamp battery connector assembly. In all embodiments this device provides a positive means of securing an electrical cable to an electrical contact, maximizing the conductive potential and clamping force to ensure the best electrical and physical connection is made.
    Type: Grant
    Filed: September 10, 2007
    Date of Patent: February 9, 2010
    Assignee: Mechanical Answers LLC
    Inventors: Scott D. Maxwell, Raymond Q. Draggie, Marian D. Maxwell, Charles A. Lemaire
  • Patent number: 7521692
    Abstract: An electron beam apparatus comprises a TDI sensor 64 and a feed-through device 50. The feed-through device has a socket contact 54 for interconnecting a pin 52 attached to a flanged 51 for separating different environments and the other pin 53 making a pair with the pin 52, in which the pin 52, the other pin 53 and the socket contact 54 together construct a connecting block, and the socket contact 54 has an elastic member 61. Accordingly, even if a large number of connecting blocks are provided, the connecting force may be kept to such a low level as to prevent the breakage in the sensor. The pin 53 is connected with the TDI sensor 64, in which a pixel array has been adaptively configured based on the optical characteristic of an image projecting optical system. That sensor has a number of integration stages that can reduce the field of view of the image projecting optical system to as small as possible so that a maximal acceptable distortion within the field of view may be set larger.
    Type: Grant
    Filed: September 4, 2007
    Date of Patent: April 21, 2009
    Assignee: Ebara Corporation
    Inventors: Masahiro Hatakeyama, Tohru Satake, Takeshi Murakami, Kenji Watanabe, Nobuharu Noji
  • Patent number: 7285010
    Abstract: An electron beam apparatus comprises a TDI sensor (64) and a feed-through device (50). The feed-through device has a socket contact (54) for interconnecting a pin (52) attached to a flanged (51) for separating different environments. The other pin (53) making a pair with the pin (52) and the socket contact (54) together construct a connecting block, and the socket contact (54) has an elastic member (61). The pin (53) is connected with the TDI sensor (64), in which a pixel array has been adaptively configured based on the optical characteristic of an image projecting optical system. That sensor has a number of integration stages that can reduce the field of view of the image projecting optical system. Further, the number of integration stage may be determined such that the data rate of the TDI sensor would not be reduced but the number of pins would not be increased as much as possible. Preferably, the number of line count may be almost equal to the number of integration stages.
    Type: Grant
    Filed: May 14, 2002
    Date of Patent: October 23, 2007
    Assignee: Ebara Corporation
    Inventors: Masahiro Hatakeyama, Tohru Satake, Takeshi Murakami, Kenji Watanabe, Nobuharu Noji
  • Patent number: 7147521
    Abstract: A wiring junction block, e.g. for taillamp pigtails in a vehicle lighting system. The wiring junction block includes a body having an input end including a first set of electrical terminals for receiving electrical power from a vehicle wiring harness. The body also has an output end including a second set of electrical terminals for supplying the received electrical power to one or more vehicle lamps. The second set of terminals includes at least one group of two or more terminals that are electrically shorted to each other. The number of terminals in the first set is less than the number of terminals in the second set. A mounting feature is located on the body and is adapted to enable mounting of the body to a vehicle support structure, e.g. apertured panel. The input and output terminals may be electrically connected by stamped circuit traces or a printed circuit board.
    Type: Grant
    Filed: January 10, 2005
    Date of Patent: December 12, 2006
    Assignee: Federal Mogul World Wide, Inc.
    Inventors: Mark Christopher Molinaro, John Andrew Forish
  • Patent number: 7021952
    Abstract: An electrical plug connector includes a housing having at least one receiver for an electrical contact, a second latching element which can be moved with respect to the housing from a pre-assembly position, in which the electrical contact can be inserted into the receiver, into an end position, in which the contact is secured in the receiver by the second latching arrangement, and a seal mounted on a spigot-like housing section. Considered in the plug-in direction, guide ribs for the seal are provided between the region of the spigot-like housing section designed to receive the seal and the second latching element adopting its pre-assembly position in order also to support the seal in the intermediate region in the event of a possible shift in the direction of the second latching element.
    Type: Grant
    Filed: January 28, 2005
    Date of Patent: April 4, 2006
    Assignee: Delphi Technologies, Inc.
    Inventor: Thomas Drescher
  • Patent number: 6942520
    Abstract: A plug connection for a line with a tubular shaped metal bush and an also tubular shaped plug part wherein a metal sleeve of the plug part is supported in the metal bush and wherein at least one snap in hook of the plug part engages into a catch recess of the metal bush in the coupling state.
    Type: Grant
    Filed: April 9, 2002
    Date of Patent: September 13, 2005
    Assignee: Componenten und Systeme GmbH
    Inventors: Reinhold Barlian, Thomas Michelbach, Hans-Martin Lösch, Rainer Lang
  • Patent number: 6652289
    Abstract: A vehicle door connector structure, in which the connector structure is easily and firmly coupled to a vehicle body to secure a tight sealing and prevent water leakage between the vehicle body and the connector structure. The connector structure also prevents vibration and noise, improves assembly efficiency and maintenance of associated components. Furthermore, the connector structure reduces the possibility of door wires being exposed to any sharp structural objects causing a short circuit.
    Type: Grant
    Filed: December 18, 2002
    Date of Patent: November 25, 2003
    Assignee: Hyundai Motor Company
    Inventor: Hyun-Cheol Bae
  • Patent number: 6540385
    Abstract: A vehicular headlamp in which a light source and an actuator are connected to a power source using the minimum number of parts, lamp body waterproofing and dustproofing are assured, and each connector is firmly secured to the lamp body of the headlamp. The headlamp includes the actuator for operating a light distribution changing device that changes the distribution of light emitted from the light source. A hookup connector which is provided with a connection portion connected to a power side connector provided on a power cord connected to a vehicle power source at one end thereof and a connection portion connected to the light source side connector and the actuator side connector at the other end thereof is mounted in a hole formed in the lamp body. The hookup connector has a flange which covers the periphery of the opening.
    Type: Grant
    Filed: November 28, 2001
    Date of Patent: April 1, 2003
    Assignee: Koito Manufacturing Co., Ltd.
    Inventors: Yoshimi Ikeda, Kazuhiro Hanamori
  • Patent number: 6508666
    Abstract: A pass-thru electrical connector assembly is an integral part of a barrier wall which separates a harsh environment from a controlled environment. A connector body having a staged position and a locked position on the barrier wall has a flange which extends radially outward from one end of an axial projecting portion. Via rotation of the connector body from the staged position to the locked position, the projecting portion of the connector body moves axially forward through a hole of the barrier wall as a ring seal is preferably axially compressed between the flange and one side of the barrier wall. Axial movement of the connector body is achieved via a plurality of locking lugs which protrude radially outward from and are spaced circumferentially about the projecting portion of the connector body. The lugs are aligned circumferentially with a plurality of slots spaced about and communicating with the hole of the barrier wall when the connector body is in the staged position.
    Type: Grant
    Filed: February 8, 2002
    Date of Patent: January 21, 2003
    Assignee: Delphi Technologies, Inc.
    Inventor: Michael E. Francis
  • Patent number: 6383003
    Abstract: An environmentally sealed electrical connector system for connector boxes used in the proximity of water includes an anchored connector which mounts into the face plate of the box from the rear, to facilitate making wiring connections in the box before installing the face plate. A mating plug-in connector forms an environmental seal around the connector contacts when mated with the anchored connector, and locking arms secure the plug-in connector to the face plate when mated. A two-piece construction allows the plug-in connector to have hard portions for locking, and soft portions for sealing.
    Type: Grant
    Filed: December 1, 1999
    Date of Patent: May 7, 2002
    Inventor: Sergio Corona
  • Patent number: 6280208
    Abstract: A shield member is closely contacted with a first seal member 3 projecting in the axial direction of a housing, and a second seal member is closely contacted with the outside thereof. A hole at the housing side is communicated with a long hole of a shield member in the movable range of a projecting portion and an engaging portion. The housing can be conductive. The housing and the shield member can be provided integrally. The housing includes a flange portion and ring walls. The ring wall fitted in a first stage ring portion of the shield member is contacted with a hole portion, the seal member is fitted with the outside of the seal member fitted with a second stage ring portion, and a shield electric wire is connected with a third stage ring portion by a shield sleeve. The ring portions can be provided in two steps, with a large diameter portion of a first seal member fitted into a first stage ring portion, and a second seal member provided at the opening end of the hole portion.
    Type: Grant
    Filed: April 4, 2000
    Date of Patent: August 28, 2001
    Assignee: Yazaki Corporation
    Inventors: Satoki Masuda, Shigemi Hashizawa, Kazuhisa Ishizaki
  • Patent number: 6217340
    Abstract: A connector assembly 40 mounts a light bulb 20 to a fixture 22. The fixture 22 has an interior surface 24, an exterior surface 26, and an opening 28. The opening 28 defines a peripheral surface interconnecting the interior and exterior surfaces 24, 26. The connector assembly 40 includes a housing 42, at least one tab 44, and a flange 48. The housing 42 supports the light bulb 20 and has an axis 50, a first portion 52, and a second portion 54 spaced axially from the first portion 52. The tab 44 extends radially from the first portion 52 of the housing 42 and includes a first pair of electrical contacts 60, 62 for engaging a second corresponding pair of electrical contacts 30, 32 on the interior surface 24 of the fixture 22 as the first portion 52 of the housing 42 is axially inserted through the opening 28 in the fixture 22 and rotated about the axis 50 of the housing 42.
    Type: Grant
    Filed: February 24, 2000
    Date of Patent: April 17, 2001
    Assignee: TRW Inc.
    Inventor: Gary G. Gordon
  • Patent number: 6133528
    Abstract: A cable manager grommet insertable into a cutout in a furniture panel, the cutout having an edge surface with a slot formed therein, the grommet having a transverse collar and a ridge extending therefrom, wherein the transverse collar lines the cutout edge surface, with the ridge inserted into the slot.
    Type: Grant
    Filed: July 7, 1998
    Date of Patent: October 17, 2000
    Assignee: Kimball International, Inc.
    Inventors: Jay M. Henriott, Grover L. Miller, Chad M. Schnell
  • Patent number: 6083040
    Abstract: An electrical connector is disclosed in which a mounting flange, for mounting the connector on a panel, is releasably secured to the connector body while simultaneously providing a seal between the flange and the body. The seal is preferably in the form of an O-ring which cooperates with locking pins on the flange and matching recesses on the connector body to provide a detent mechanism that permits the releasable locking of the flange onto the body.
    Type: Grant
    Filed: July 25, 1997
    Date of Patent: July 4, 2000
    Assignee: ITT Manufacturing Enterprises, Inc.
    Inventor: Rene Augusto Mosquera
  • Patent number: 5775830
    Abstract: Disclosed is a connector casing made watertight by the addition of a seal. It is made up of a first casing element (1) mating with a second casing element (2). The first casing element is designed with a hook (3) which retains a stop (4) integral with the casing element (2) which is equipped with a lip seal (5) of asymmetrical section and prevented from rotating by an indexing lug (6). The front of the casing element (1) has a change of level (6) which partially embeds the lip seal.
    Type: Grant
    Filed: January 19, 1996
    Date of Patent: July 7, 1998
    Assignee: Blue Moon WW
    Inventor: Bertrand Courtaigne
  • Patent number: 5759064
    Abstract: A waterproof lamp socket structure includes a bayonet lamp socket structure having lock engagement hooks and a flange, an attachment panel, which the lamp socket is fastened to and which has a cylindrical rib, and an annular gasket supported between the lock engagement hooks and the flange by the attachment panel. The annular gasket is provided with an outer sealing engagement rim forming an airtight engagement with an inner cylindrical surface of the cylindrical rib.
    Type: Grant
    Filed: July 12, 1996
    Date of Patent: June 2, 1998
    Assignee: Yazaki Corporation
    Inventor: Norio Sugiyama
  • Patent number: 5630729
    Abstract: A seal lamp socket arrangement for mounting a W-2 type bulb is provided including a housing with a collar opening and a base with a bore with opposed inwardly projecting tabs; a retainer cap with a diameter generally aligned with the housing bore with twist lock slots allowing for insertion through the housing opening past the housing opening opposed tabs and for connection with the housing upon rotation, the retainer having at least one internal ledge; a socket base with a flange for maintaining seal position, the socket base having a seal mounting portion to position a seal in sealing contact with the housing collar, the socket base also having at least two bores with an area reduction to entrap a spring terminal, and the socket base having two compliant tabs for capture of a W-2 type bulb and at least one ledge to connect the retainer whereby the retainer retains a seal within the collar; and a spring terminal held in position in reduced diameter portion of the socket base.
    Type: Grant
    Filed: December 26, 1995
    Date of Patent: May 20, 1997
    Assignee: General Motors Corporation
    Inventor: Michael E. Francis
  • Patent number: 5577929
    Abstract: A bulb socket mounted on a partition wall of a lamp house through an elastic gasket, for receiving a bulb and electric terminals, comprises a front casing and a rear casing. The front casing which is receiving a proximal end portion of the bulb has engagement projections on an outer periphery thereof. The rear casing has a mounting flange on an outer periphery thereof for holding the partition wall of the lamp house with the engagement projections of the front casing. The rear casing is molded separately from the front casing by a mold which allows the rear casing to be removed therefrom in an axial direction. The front casing and the rear casing are integrally joined at their open end surfaces.
    Type: Grant
    Filed: October 19, 1994
    Date of Patent: November 26, 1996
    Assignee: Sumitomo Wiring Systems, Ltd.
    Inventor: Hisashi Sawada
  • Patent number: 5518419
    Abstract: A sepreable low profile connector for a transmission includes a first elongated receptacle aligned with a central axis. The first receptacle has a flange portion, a first cylindrical portion and a first terminal housing portion. The first cylindrical portion and the first terminal housing portion are sized to be received within the bore, whereas the flange portion is sized larger than the bore. The first cylindrical portion is adjacent the flange and has a diameter smaller than the bore. The first receptacle has longitudinal openings extending through the flange portion, the first cylindrical portion and the first terminal housing portion. Electrically conductive terminals are located within the longitudinal openings in the first terminal housing portion and are juxtaposed to the inner wall of the bore. At least one seal is located on the cylindrical portion adjacent the bore. A second receptacle has a second cylindrical portion, and a second terminal portion.
    Type: Grant
    Filed: November 28, 1994
    Date of Patent: May 21, 1996
    Assignee: Ford Motor Company
    Inventors: Gary J. Denyer, Kenneth G. Walega
  • Patent number: 5375046
    Abstract: An apparatus for holding a rubber or elastic cover covering a bulb exchange opening of a lamp assembly of a vehicle, comprises a holder defining the bulb exchange opening and having a plurality of outer engagement claws formed at predetermined intervals in the circumferential direction of the holder, and a cap retaining the cover together with the holder. The cap has a plurality of hooks engaging the claws when the cap is rotated for engaging the holder. At least one cap abutment is provided on the holder at a circumferential position of the holder between adjacent two claws, which provides interference in the direction of engagement between the cap and the cap abutment when the cap is mounted on the holder, so that a sensible physical response is given to an operator for confirming the correct right engagement of the cover, the cap and the holder, to reliably enhance the holding function.
    Type: Grant
    Filed: August 4, 1993
    Date of Patent: December 20, 1994
    Assignee: Stanley Electric Co., Ltd.
    Inventors: Yoshitaka Narumi, Ryoji Ito
  • Patent number: 5234221
    Abstract: An elastomer seal is described which is useful for forming a sealed, flat mounting surface on a curved housing. The elastomer seal has a flat sealing face opposite a curved sealing surface. An angled transition surface is adjacent to the curved sealing surface forming a bevel. The bevel assists the seal in properly deforming so that a sealing area is formed across the curved housing. This seal provides peripheral and central contact so that the distribution of compressed seal material is well spread over the surface of the sealed area. The elastomer seal is able to effectively seal housings with radii of curvature from 1 to 6.4 times the curvature radius of the curved sealing surface.
    Type: Grant
    Filed: February 22, 1990
    Date of Patent: August 10, 1993
    Assignee: Richard Hirschmann Radiotechnisches Werk
    Inventor: Walter Freisleben
  • Patent number: 5044986
    Abstract: A sealing device is provided for closing an opening in a panel which accommodated an electrical connector. The device includes a body positionable about the connector. A sealing flang on the body establishes sealing engagement with the panel about the opening. A positive lock is provided between the body and the connector for holding the sealing device in position with the sealing flange in sealing engagement with the panel.
    Type: Grant
    Filed: June 29, 1990
    Date of Patent: September 3, 1991
    Assignee: Molex Incorporated
    Inventor: Bruno Baumanis
  • Patent number: 4967328
    Abstract: A rubber ring disposed snugly over the glass envelope of a lamp and slid against a larger cylindrical lamp body centers and spaces the lamp within a reflector hole by positioning the ring within a counterbore recess in a back surface of the reflector concentric with the hole. The height of the ring is greater than the depth of the counterbore recess to space the lamp body away from the back surface of the reflector. A rubber strip is disposed between the opposite end of the lamp body and a housing member, the strip and ring being compressed in assembly to resiliently support the lamp, absorbing vibration and shock forces imparted to the lamp through the housing.
    Type: Grant
    Filed: March 22, 1990
    Date of Patent: October 30, 1990
    Assignee: Eaton Corporation
    Inventor: Vanacan Tatavoosian
  • Patent number: 4957455
    Abstract: A connector socket for a wedge-base lamp is improved by socket structures which aid in leading the base end of the bulb into alignment with the insertion channel and at the same time prevent contact between the base end and the top ends of the socket terminals in a way which might lead to wrenching or deformation of the terminals.
    Type: Grant
    Filed: April 18, 1989
    Date of Patent: September 18, 1990
    Assignees: Sumitomo Wiring Systems, Limited, Koito Manufacturing Co., Ltd.
    Inventors: Kazuya Horiuchi, Kihachiro Uchida, Tadashi Harada, Takeshi Izawa
  • Patent number: 4940422
    Abstract: This invention pertains to a lamp socket assembly for use in automotive applications and the like. The assembly includes a housing, a contact insert, and a body. The contact insert is captured in the cavity of the housing by the body. The body is welded to the housing. Lugs on the body secure the assembly to a panel. A seal is placed between a flange on the housing and the panel to seal the assembly to the panel. Contacts are retained in the contact insert by engagement of U-shaped portions in slots of the contact inserts. Blade terminals are inserted through windows in the housing, contact insert, and contacts to interlock the terminals with the contacts and to keep the contacts secured in their positions. A socket connector is sealingly secured to the housing and prevents moisture from entering the housing. In an alternative embodiment, no socket connector is provided but the blade terminals are crimped to wires for connecting the socket assembly to a source of electric power.
    Type: Grant
    Filed: May 17, 1989
    Date of Patent: July 10, 1990
    Assignee: Zanxx, Inc.
    Inventors: John A. Forish, John J. Rogers
  • Patent number: 4869679
    Abstract: A connector assembly for connecting a cable to an externally threaded port comprising a tubular connector body with an internally threaded connector element thereon, a resiliently deformable sealing element having a first portion tightly encircling the port and a second portion tightly encircling the connector element, the diameters of the two portions defining to provide a stepped internal shoulder, the internal shoulder including a truncated conical surface defining a circular internal sealing lip being deformably engaged by the end of the connector elememt and axially compressed between the connector element and a port abutment surface.
    Type: Grant
    Filed: July 1, 1988
    Date of Patent: September 26, 1989
    Assignee: John Messalingua Assoc. Inc.
    Inventor: Andrew Szegda
  • Patent number: 4717355
    Abstract: A plug for sealing an end of a coupling assembly secured to an end of a coaxial cable includes a flange having an end face which has a cross-sectional area substantially less than a cross-sectional area of a threaded portion of the plug, the end face being urged against an end face of the coupling assembly to form a seal therewith.
    Type: Grant
    Filed: October 24, 1986
    Date of Patent: January 5, 1988
    Assignee: Raychem Corp.
    Inventor: John S. Mattis
  • Patent number: 4702710
    Abstract: A waterproof seal assembly for electrical connectors is disclosed having an elastomeric sleeve which encircles a portion of the cable and the plug end of the electrical connector. An adaptor, used to secure the receiving jack, extends from the securing point to meet the sleeve, thereby completely encircling the connection. A sealing bead may be provided on the inner surface of the sleeve to engage the adaptor and seal out moisture, dust, and other corrosive contaminants.
    Type: Grant
    Filed: June 20, 1986
    Date of Patent: October 27, 1987
    Assignee: Georgia Tech Research Corporation
    Inventors: William J. Dittman, Luther S. Ward