Helically Coiled Spring Forms Securing Part Patents (Class 439/840)
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Patent number: 7489140Abstract: Apparatus, methods, and systems improve spark testing of insulated cables. According to embodiments described herein, a spark tester includes a conductive housing having an entryway, an exit, and a test chamber therebetween. The spark tester utilizes spring electrodes connected to an adjustment ring at one end of the housing and to a fixed structure at the opposite end of the housing. The adjustment ring is rotated such that the spring electrodes wrap around the test cable, contacting the test cable on all sides throughout the test chamber. The housing also includes an electrical contact for receiving and distributing a voltage across the housing and the spring electrodes. As the test cable is drawn through the spring electrodes, the grounded conductors within the test cable are monitored for a voltage spike, indicating an insulation defect that allowed a discharge from the spring electrodes to a test cable conductor.Type: GrantFiled: November 5, 2007Date of Patent: February 10, 2009Assignee: Southwire CompanyInventors: Cyrus Scott Butterworth, Wilber Freeman Powers, Jr.
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Publication number: 20090011662Abstract: A surface mount contact member includes a metal base and a conductive coil spring. The metal base is provided with a nozzle suction surface to be sucked by a suction nozzle and a soldering surface that can be soldered. The soldering surface is faced downward when the nozzle suction surface is faced upward. The conductive coil spring is attached to the metal base in an electrically conductive manner with the nozzle suction surface being exposed to an inner peripheral side of the coil spring.Type: ApplicationFiled: July 3, 2008Publication date: January 8, 2009Applicant: KITAGAWA INDUSTRIES CO., LTD.Inventors: Hideo YUMI, Kenji KONDA
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Patent number: 7458862Abstract: The present invention provides an electrical power system comprising a plurality of battery modules in series connection between adjacent battery modules, wherein each of the battery modules comprises a positive male terminal, a negative male terminal, and a socket corresponding to each of the positive male terminals and the negative male terminals. The connectors connecting the adjacent battery modules include a sequence tab that provides an irreversible engagement sequence of the connectors into the sockets of the adjacent battery modules. The irreversible engagement sequence positions an insulating portion of the connectors housing on each positive male terminal of the battery modules that are in series connection in order to isolate the positive male terminals from human contact. The present invention also provides a female terminal including a canted coil spring positioned within a stamped groove that may be housed within the above-described connectors.Type: GrantFiled: June 11, 2007Date of Patent: December 2, 2008Assignee: Alcoa Fujikura Ltd.Inventors: Weiping Zhao, Stefano Spadoni, Ankoor Bagchi
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Patent number: 7429198Abstract: A laser block assembly (LBA) gas fill process device with improved cathode electrode connectors. An example device includes a gas fill component that attaches to an LBA under test and electrical connectors that receive a voltage bias from a voltage source and apply the voltage bias to cathodes of the LBA. The electrical connectors include an end having a torsion spring that is sized based on the cathodes of the LBA. Also, the electrical connectors may include a strain relief spring.Type: GrantFiled: June 8, 2007Date of Patent: September 30, 2008Assignee: Honeywell International Inc.Inventors: James K. Baxter, Robert M. Bowman, Kenneth W. Lillemo, Lloyd C. Meissner
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Patent number: 7316593Abstract: A female electrical connector and method of using same includes a body having a bore therethrough for receiving electrical plug and a helical groove formed in the bore. A canted coil spring is disposed in the helical groove and protrudes therefrom for providing both electrical connection to the plug and retention of the plug within the bore and a connecting lug embedded into the body, surrounding the bore and interconnected with the spring includes a wire segment extending exterior to the body.Type: GrantFiled: May 16, 2006Date of Patent: January 8, 2008Assignee: Bal Seal Engineering Co., Inc.Inventor: Peter J. Balsells
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Patent number: 7274964Abstract: A medically implantable electrical connector includes a housing having a bore with an internal groove therein along with a pin sized for insertion into the housing bore. A film removing spring is disposed in the housing groove dynamic loading of the spring in the groove by the pin causing scraping of film from the groove and pin surfaces to provide lowered electrical resistance therebetween.Type: GrantFiled: April 13, 2005Date of Patent: September 25, 2007Assignee: Bal Seal Engineering Co., Inc.Inventor: Peter J. Balsells
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Patent number: 7229327Abstract: The present invention provides an electrical power system comprising a plurality of battery modules in series connection between adjacent battery modules, wherein each of the battery modules comprises a positive male terminal, a negative male terminal, and a socket corresponding to each of the positive male terminals and the negative male terminals. The connectors connecting the adjacent battery modules include a sequence tab that provides an irreversible engagement sequence of the connectors into the sockets of the adjacent battery modules. The irreversible engagement sequence positions an insulating portion of the connectors housing on each positive male terminal of the battery modules that are in series connection in order to isolate the positive male terminals from human contact. The present invention also provides a female terminal including a canted coil spring positioned within a stamped groove that may be housed within the above-described connectors.Type: GrantFiled: May 25, 2005Date of Patent: June 12, 2007Assignee: Alcoa Fujikura LimitedInventors: Weiping Zhao, Stefano Spadoni, Ankoor Bagchi
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Patent number: 7033232Abstract: An electric plug connector has two separate contact members. Each of the contact members has a first pair of parallel elongate webs spaced from each other and a second pair of elongate webs that extend in the same plane perpendicular to the first pair of webs. The first and second contact members are assembled so that the first pairs of webs of both contact members are aligned to define a first flat plug-in channel and the second pairs of webs of both contact members are spaced from each other and face each other to define a second flat plug-in channel perpendicular to and crossing the first plug-in channel. The two separate contact members are held in an assembled condition by a holding member tightly surrounding the contact members.Type: GrantFiled: October 28, 2004Date of Patent: April 25, 2006Assignee: TRW Automotive Electronics & Components GmbH & Co. KGInventors: Joachim Korherr, Karl Friedrich Brodbeck
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Patent number: 6966802Abstract: The invention is embodied in a plug connector having first and second plug contacts, a conductive connecting member and a receiving element. The conductive connecting member is formed as a spring and is positioned between the first and second plug contacts to form an electrical contact between an inner surface of the first plug contact and an outer surface of the second plug contact. The receiving element houses the connecting member between the first and second plug contacts.Type: GrantFiled: February 10, 2004Date of Patent: November 22, 2005Assignee: Tyco Electroncis AMP GmbHInventors: Brigitte Hielscher, Rolf Jetter, Alexander Schmid
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Patent number: 6887085Abstract: The present invention relates to a terminal for a spiral contactor performing an electrical connection with an electronic component. The terminal is constituted including a peripheral frame and a contact portion contacting a connection end terminal. One end of the contact portion is fixed on the peripheral frame and the other end of the contact portion is provided spirally extended toward a center of an opening of the peripheral frame so as to universally move in a perpendicular direction for an opening face of the peripheral frame. And a thickness of the contact portion becomes thinner as the contact portion proceeds from one end toward the other end.Type: GrantFiled: June 9, 2003Date of Patent: May 3, 2005Assignee: Advanced Systems Japan, Inc.Inventor: Yukihiro Hirai
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Patent number: 6817893Abstract: The invention relates to a plug connector for making an electrical connection with a battery terminal. The plug connector comprises a housing formed by joining an upper shell and a lower shell with a contact lying within the housing. The contact has a helical spring contact and a contact strip bent to form a cylindrical region. The upper shell and the lower shell each have a holding element extending within the cylindrical region formed by the contact strip, in order to form a recess for holding the helical spring contact.Type: GrantFiled: January 16, 2004Date of Patent: November 16, 2004Assignee: Tyco Electronics AMP GmbHInventors: Alexander Schmid, Rolf Jetter, Antonio Lehner
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Patent number: 6773312Abstract: An electrical pressure contact includes a housing sleeve with an end facing the contact and an end facing away from the contact, a contact pin axially slidably supported in the housing sleeve, which pin extends out of the housing sleeve at the side facing the contact, which pin is a pushable into the housing sleeve against the biasing force of the a biasing element arranged in the housing sleeve, and through the conductive body of which pin the electrical contact is made, a terminal piece for fastening to an electrical supply conductor at the end of the housing facing away from the contact, and an axially flexible electrical conductor arranged in the housing sleeve between the terminal piece and the contact pin. The flexible electrical conductor is at its end facing the contact clamped into an axial bore formed in the end of the contact pin facing away from the contact and at its end facing away from the contact is clamped in an axial bore formed in the end of the terminal piece facing the contact.Type: GrantFiled: August 23, 2002Date of Patent: August 10, 2004Assignee: era-contact GmbHInventors: Monika Bauer, Frank Moskob, Robert Dost, Bernd Schumann, Andreas Kainz, Jürgen Veit
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Patent number: 6749358Abstract: A tooless electrical connector includes a housing having a bore with a groove disposed on an inside surface of the bore with the groove establishing a shoulder between a groove bottom and a bore inside surface. A flat spring is provided and disposed in the groove for defining a spring cavity between the flat spring and the shoulder and a circular canted coil spring is disposed in the spring cavity. A pin having a circumferential groove is provided for receiving the coil spring upon insertion of the pin into the bore and a plurality of primary radial fingers formed in the flat spring retain the coil spring in the cavity before insertion of the pin. A plurality of secondary radial fingers formed in the flat spring prevent axial movement between the housing and the pin with the coil spring within the pin groove.Type: GrantFiled: November 19, 2002Date of Patent: June 15, 2004Assignee: Bal Seal Engineering Co., Inc.Inventor: Peter J. Balsells
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Patent number: 6666690Abstract: A coil spring contact connector (C) includes a plurality of coil spring contacts (1) and an insulating holder (2) holding the coil spring contacts arranged at intervals. Each coil spring contact has a pair of end contact coils (10) to be brought into contact with a terminal electrode (6c), and middle contact coils (12) radially offset relative to the end contact coils (10) so as to be brought into contact with another terminal electrode (5c). The holder is provided with openings through which contact parts of the end and the middle contact coils project outside, respectively, restrains each coil spring contact (1) from axial deformation and axial movement, and allows each coil spring contact (1) to be deformed in an offset direction thereof.Type: GrantFiled: September 23, 2002Date of Patent: December 23, 2003Assignee: Yokowo Co., Ltd.Inventors: Shinichi Ishizuka, Kenji Endo
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Patent number: 6659778Abstract: The present invention provides an electrical contact comprising a first member having spring properties and a second member wrapped around at least a portion of the first member wherein the second member has a greater electrical conductivity than the first member. In one embodiment, a conductor is wrapped around at least a portion of a spring. In another embodiment, the spring is formed into a coil or helix with a wire wrapped around at least a portion of the helical spring. In one form of this embodiment, the spring has a plurality of turns and the wire is wrapped around at least two of the turns. In another form of this embodiment, the spring has a plurality of turns and the wire is wrapped around all of the turns. An interposer connector is also provided having a frame including a top surface and a bottom surface and a plurality of apertures arranged in a pattern and opening onto the top and bottom surfaces of the frame.Type: GrantFiled: August 1, 2002Date of Patent: December 9, 2003Assignee: High Connection Density, IncInventor: Che-Yu Li
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Publication number: 20030157846Abstract: A medically implantable electrical connector includes a housing having a bore with an internal V-groove or a flat bottom groove therein along with radial garter spring disposed in the V-groove or an axial garter spring disposed in the flat bottom groove. A pin is provided and sized for insertion in the housing bore. The housing, spring and pin are formed from a combination of medically implantable materials in order to control electrical resistivity between the housing, the garter spring and the pin.Type: ApplicationFiled: February 14, 2003Publication date: August 21, 2003Inventors: Daniel Poon, Peter J. Balsells
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Patent number: 6565395Abstract: An electrical connection between a vibratory rotation sensor and a hermetic header which makes use of a local interference fit to provide a high degree of mechanical isolation between the sensor and the header. The electrical connection includes an electrical pin extending from the header which is connected to the sensor through a coil spring. The pin includes an enlarged portion having a maximal dimension greater than an inner diameter of the coil spring to provide an interference fit between the coil spring and the pin. The degree of interference is variable controlled by selecting the dimensions of the enlarged portion of the pin and the coil spring. The degree of mechanical isolation between the header and sensor can also be chosen by selecting the location of the enlarged portion along a length of the pin. This provides a reliable electrical connection which maintains a high degree of mechanical isolation.Type: GrantFiled: December 21, 2001Date of Patent: May 20, 2003Assignee: Northrop Grumman CorporationInventor: Robert Schwarz
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Publication number: 20030049974Abstract: An electrical pressure contact includes a housing sleeve with an end facing the contact and an end facing away from the contact, a contact pin axially slidably supported in the housing sleeve, which pin extends out of the housing sleeve at the side facing the contact, which pin is a pushable into the housing sleeve against the biasing force of the a biasing element arranged in the housing sleeve, and through the conductive body of which pin the electrical contact is made, a terminal piece for fastening to an electrical supply conductor at the end of the housing facing away from the contact, and an axially flexible electrical conductor arranged in the housing sleeve between the terminal piece and the contact pin. The flexible electrical conductor is at its end facing the contact clamped into an axial bore formed in the end of the contact pin facing away from the contact and at its end facing away from the contact is clamped in an axial bore formed in the end of the terminal piece facing the contact.Type: ApplicationFiled: August 23, 2002Publication date: March 13, 2003Inventors: Monika Bauer, Frank Moskob, Robert Dost, Bernd Schumann, Andreas Kainz, Jurgen Veit
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Patent number: 6472599Abstract: An electrical interface arrangement includes a buss bar having a longitudinal edge that is substantially smooth and free of conductive tabs. A conductive member is arranged adjacent to the longitudinal edge of the buss bar, and contacts the buss bar with at least 40 A-spots per inch, along substantially an entire length of the buss bar. A circuit board having a plurality of internal planes is provided, with at least one of the internal planes being an internal power plane, and with at least another one of the internal planes being an internal wiring plane having a plurality of conductive wirings. The circuit board further has an arrangement for electrically connecting the conductive member to the internal power plane without interfering with a placement of the conductive wirings, so that the circuit board and the buss bar are in electrical communication.Type: GrantFiled: February 9, 2001Date of Patent: October 29, 2002Assignee: International Business Machines CorporationInventor: Barry Lee Shepherd
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Patent number: 6439894Abstract: The present invention provides an electrical contact comprising a first member having spring properties and a second member wrapped around at least a portion of the first member wherein the second member has a greater electrical conductivity than the first member. In one embodiment, a conductor is wrapped around at least a portion of a spring. In another embodiment, the spring is formed into a coil or helix with a wire wrapped around at least a portion of the helical spring. In one form of this embodiment, the spring has a plurality of turns and the wire is wrapped around at least two of the turns. In another form of this embodiment, the spring has a plurality of turns and the wire is wrapped around all of the turns. An interposer connector is also provided having a frame including a top surface and a bottom surface and a plurality of apertures arranged in a pattern and opening onto the top and bottom surfaces of the frame.Type: GrantFiled: January 31, 2001Date of Patent: August 27, 2002Assignee: High Connection Density, Inc.Inventor: Che-Yu Li
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Patent number: 6416330Abstract: A canted coiled spring is used as a highly conductive, high current electrode between a printed circuit board and a conductive strip connected to a selected voltage. A conductive channel member has fixed therein a coil spring made of a highly conductive, metallic material. The canted coiled spring is fixed at each end so that it may be easily slid along an adjacent electrode of the power strip. The channel member holding the canted coiled spring is coupled to a printed circuit board with a clamped, highly conductive contact surface. The use of the coil spring in a channel member connected to a printed circuit board permits the printed circuit board to be easily slid into, and out of electrical contact with power carrying electrodes.Type: GrantFiled: July 17, 2000Date of Patent: July 9, 2002Assignee: Cray Inc.Inventors: Alexander I. Yatskov, Stephen V. R. Hellriegel, Richard K. Kunze
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Patent number: 6388885Abstract: A user-friendly controller provides a special dynamic interconnect which reliably connects terminals of electronic device, such as solenoids, to a circuit board to enhance vehicle performance and help obtain a smoother more comfortable ride. The special interconnect comprises a coil spring contact. The coiled spring contact can have an enlarged head which can be soldered to a contact on the circuit board. The central portion of the spring contact provides a terminal-receiving opening to slidably receive the terminal of the electronic device. The smaller end portion of the spring contact can compressively engage and dynamically contact the terminal of the electronic device. A cover can be provided to environmentally protect and cover the circuitry and circuit board. The cover can have chambers for receiving and engaging the spring contacts.Type: GrantFiled: August 22, 2000Date of Patent: May 14, 2002Assignee: Motorola, Inc.Inventors: Andrew D. Alexander, Heather L. Havlicsek, Kevin C. Loewe, Donald J. Zito
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Patent number: 5990458Abstract: An electrical contact assembly for a roller (10) having at least one single-bevel end portion (13) has a first electrical contact formed by a thermally sprayed band (29) of a nickel alloy, a second electrical contact (30) formed by an annular contact structure (57, 37, 38, 30) assembled to the roller (10) and a bridging contact formed by an extension coil spring (33) which extends around the tapered end (24) of the roller (10) in a location where it will make bridging contact between the first electrical contact (29) and the second electrical contact (30) and provide spring pressure to maintain such contact.Type: GrantFiled: March 3, 1998Date of Patent: November 23, 1999Assignee: American Roller CompanyInventors: Bruce E. Hyllberg, Robert G. Langley
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Patent number: 5941739Abstract: An electrical connection system for electrically connecting a full erase head assembly to a power source in a video cassette recorder includes a main printed circuit board having a terminal connected to the power source, conductive connecting members for electrically connecting the full erase head assembly to the terminal, and a base for fixing the full erase head assembly to the deck, the base having at least a connecting hole for permitting the conductive connecting members to reach the terminal. The connecting members may comprise conductive and elastic springs.Type: GrantFiled: September 22, 1997Date of Patent: August 24, 1999Assignee: Daewoo Electronics Co., LtdInventor: Hyo-Jong Yoo
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Patent number: 5708234Abstract: An insulating outer shell includes structure forming a first opening in a first end of the outer shell, and structure forming a second opening in a second end of the outer shell. A conductive inner shell having a closed end and an open end is fitted inside the outer shell such that the closed end is oriented toward the first end of the outer shell and the open end is oriented toward the second end of the outer shell. A first conductor extends through the first opening of the outer shell. One end of the first conductor is welded to the closed end of the inner shell. The first conductor has a free end. A spring for engaging at least one second conductor within the inner shell is welded to the inside of the inner shell.Type: GrantFiled: February 27, 1996Date of Patent: January 13, 1998Inventor: Joseph Frontierro
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Patent number: 5584723Abstract: The invention provides a connection assembly for a rechargeable battery, including a connector and connector receptacle assembly to connect the battery to the device. The connection assembly allows a battery to be inserted and removed from the device with minimal effort for recharging or use. The connector includes an insulator block with positive and negative electrical contact plates mounted therein, which contact the respective positive and negative contact plates of the connector receptacle. The connector is mounted to a battery, and the connector receptacle is mounted to an electrical device, such as a lawn mower or a charge unit if recharging is desired.Type: GrantFiled: November 17, 1993Date of Patent: December 17, 1996Assignee: Trim-a-Lawn CorporationInventors: James W. Sutliff, Dallas W. Jones
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Patent number: 5531618Abstract: The invention relates to a method and apparatus for connecting and terminating electrical conductors. The apparatus provides an electrical connector-terminal, which includes a conductive coiled spring construction that is adapted for selectively retaining and releasing a wire lead arrangement. The electrical connector-terminal further includes a terminal arrangement that is constructed and arranged for selective engagement with an electrical terminal. The method relates to a method of connecting and terminating a conductor element or wire lead arrangement to an electrical device.Type: GrantFiled: June 4, 1993Date of Patent: July 2, 1996Inventor: Roger A. Market
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Patent number: 5468164Abstract: A female contact, in particular for a high tension section switch, the female contact comprising two interleaved thimbles, a metal first thimble made by extruding a block of metal and then machining it, said first thimble having metal contact fingers designed for co-operating electrically with a male contact, the other thimble including fingers of an insulating material, the insulating fingers limiting the displacement of the metal contact fingers in a radial direction and in a lateral direction to predetermined values that are less than the elastic limit of deformation of the metal contact fingers, and serving in particular to prevent contact between the metal contact fingers.Type: GrantFiled: August 19, 1994Date of Patent: November 21, 1995Assignee: GEC Alsthom T & D, Inc.Inventor: Daniel Demissy
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Patent number: 5468153Abstract: A rotatable electrical connector or swivel is used in a substantially vertical subterranean portion of a drill string within a drill pipe. The swivel has an enclosed oil filled chamber having a first shaft concentrically mounted therein. The first shaft protrudes from the chamber and is electrically connected to one end of a wireline which is used for electrical connection between the surface and instruments located downhole. Within the interior of the oil filled chamber the first shaft is attached to a first member disposed within the complementary surface of a second member concentrically aligned with the first member. The second member includes a second shaft which protrudes from the oil filled chamber and is connected to the other end of the wireline. One of the two shafts is rotatably mounted in bearing within the chamber so that the complementary surfaces of the first and second members are in the relationship of a rotor and stator.Type: GrantFiled: December 15, 1993Date of Patent: November 21, 1995Assignee: Drilling Measurements, Inc.Inventors: Robert L. Brown, John D. Holodnak, Gene McBride, Demmie L. Mosley
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Patent number: 5454735Abstract: Male and female radio frequency cable connectors 64 and 13 have corresponding circumferential grooves 80 and 44 which are aligned and face each other when the connectors 64 and 13 are in a connected state so as to form a channel. The connectors 64 and 13 are held together by a canted-coil spring 11 residing in the channel formed by the two aligned and facing circumferential grooves 80 and 44. Deformation of the canted-coil spring 11 residing in the channel allows the male and female counterpart RF cable connectors 64 and 13 to resist separation as well as provide a primary electrical contact between the two connectors. If a substantial tensile force is placed on the cables 12 and 85, the spring 11 will deform sufficiently to allow separation of the two connectors 64 and 13.Type: GrantFiled: April 19, 1994Date of Patent: October 3, 1995Assignee: Radio Frequency Systems, Inc.Inventor: James W. Nelson
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Patent number: 5439393Abstract: A coupler of the zero insertion force (ZIF) type for connecting two coaxial cables. A first embodiment includes a pair of opposed (inner) cylindrical receptacles, electrically connected, each formed from two lengths of helically coiled, interleaved wire, which each receive and grip a cable center-conductor. A pair of opposed (outer) cylindrical receptacles, electrically connected, each formed from two lengths of helically coiled, interleaved wire ribbon, each receive, contact, and grip a cable outer-conductor. The first embodiment further includes means for concurrently enlarging or contracting each (inner, outer) receptacle pair, and means for maintaining receptacle contraction. A second embodiment includes a pair of opposed (inner) cylindrical receptacles, electrically connected, each formed from a length of helically coiled wire, which each receive, contact and grip a cable center-conductor.Type: GrantFiled: April 18, 1994Date of Patent: August 8, 1995Inventor: Troy M. Watson
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Patent number: 5383798Abstract: A VCR terminal connector which includes a metal contact casing connected to the outside conductor of a coaxial cable by punching, a shell covered around the metal contact casing, a coil spring retained to the shell around the coaxial cable, a metal contact center rod retained inside the metal contact casing by insulator bushings and connected to the central conductor of the coaxial cable by punching, and a layer of insulating shield formed through an injection molding process and covered over the metal contact casing and the central conductor and outside conductor of the coaxial cable and filled up the gaps between the metal contact center rod and the metal contact casing to protect the connector against moisture and dust.Type: GrantFiled: August 16, 1993Date of Patent: January 24, 1995Inventor: Lark Lin
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Patent number: 5368491Abstract: This invention hereof is directed to a high density electrical connector utilizing a flexible film having etched circuitry thereon for electrically interconnecting to conductive traces or pads on at least a pair of planar electronic devices. The connector includes a pair of opposed housing members, where each housing member comprises a plurality of aligned housing segments. The segments are characterized by a pair of end walls and at least a pair of planar sides containing plural, parallel grooves for receiving coiled springs therein, where the springs are positioned to apply a normal force to the overlying flexible film.Type: GrantFiled: December 17, 1993Date of Patent: November 29, 1994Assignee: The Whitaker CorporationInventor: Ronald P. Locati
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Patent number: 5342225Abstract: An improved electrical connector for use in pyrotechnic displays. The connector uses a single piece conductor pin, a clamp and a spring. Wires from a pyrotechnic projectile are attached to the connector by pushing down on the clamp and compressing the spring, providing an opening in which bare wire may be placed. Releasing the clamp causes the spring to extend, thereby securing the wire between the head of the conductor pin and the clamp by spring tension. After the projectile has been launched, a wire may simply be pulled out by the operator without pushing down on the clamp. The improved connector is especially useful where the pyrotechnic devices and associated electric circuitry are mounted on or near the water. Because of its primarily stainless steel structure, the connector is corrosion-resistant. It also provides a watertight seal, preventing the introduction of water to the firing control system circuitry.Type: GrantFiled: June 2, 1993Date of Patent: August 30, 1994Assignee: The Walt Disney CompanyInventor: Raymond C. Farr
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Patent number: 5340323Abstract: In an insertion and engagement operation of a coil spring into the high tension terminal, the insertion end portion of the coil spring is inclined so that the projection portions may be located at upper and lower positions, and the outer diameter of the projection portions is approximately the same diameter as the outer diameter of the coil spring. The engagement portion of the high tension terminal includes an engagement hole, so that it can be visually confirmed that the insertion terminal portion of the coil spring has been engaged, the insertion end portion of the coil spring having been inclined in advance.Type: GrantFiled: January 21, 1993Date of Patent: August 23, 1994Assignee: Sumitomo Wiring Systems, Ltd.Inventors: Hisao Imanishi, Keiichi Nakajima
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Patent number: 5328393Abstract: The present invention relates to an electrical contact system, in particular for a circuit-breaker, for establishing electrical contact between the respective ends of two conductive tubes (1) and (3) by fitting them together so that the end of one tube is inserted into the end of the other tube. According to the invention, one of the tubes (1), (3) includes a cavity (4) at its end, the cavity having an opening facing the other tube (3), (1) over at least a portion of the periphery of the tube, and a conductive component (2) is held in said cavity (4) which component is in part deformable radially relative to the tube, the conductive component coming into contact with the bottom of the cavity, and projecting out from the opening in the cavity.Type: GrantFiled: March 5, 1993Date of Patent: July 12, 1994Assignee: GEC Alsthom T & D SAInventors: Michel Perret, Renaud David
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Patent number: 5322454Abstract: A connector for connecting to helically corrugated conduit comprises a bolt member having a passageway therethrough and a connector body having a hollow end portion that receives the bolt member. The connector includes a collet clamp within the passageway that has a grooved gripping surface adapted to be received within the helical corrugations of the conduit. The collet clamp includes a plurality of fingers each having a radially inward directing gripping surface and a wedge-shaped outer surface. A bushing having a frustoconically shaped bore is advanced over the fingers of the collet clamp when the bolt member is attached to the connector body in order to force the fingers radially inward into gripping contact with the corrugated conduit.Type: GrantFiled: December 15, 1992Date of Patent: June 21, 1994Assignee: Specialty Connector Company, Inc.Inventor: Robert L. Thommen
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Patent number: 5310359Abstract: A connector backshell assembly is provided for strain relief mounting to an electrical cable. The assembly includes a backshell having forward and rearward ends and an axially extending cable-receiving aperture therethrough. A toroidally configured, radially compressible strain relief coil spring surrounds the cable and is disposed near the rearward end of the backshell. A compression nut is engageable with the backshell for selective rotational and axial movement relative thereto. The compression nut includes a forwardly facing concave cam surface for engaging and radially compressing the coil spring into strain relief engagement with the cable. An interference surface is operatively associated with the backshell and non-rotatably engageable with the strain relief coil spring to prevent rotation of the coil spring with the compression nut relative to the backshell.Type: GrantFiled: June 10, 1993Date of Patent: May 10, 1994Assignee: Molex IncorporatedInventors: Richard Chadbourne, Scott D. Magovern, Robert A. Miller
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Patent number: 5260534Abstract: A rocker switch includes a casing composed of a lower base and an upper cover, an input terminal and an output terminal, respectively connected with an input electrical cord and an output electrical cord, and embedded in two sockets disposed in two opposite sides in the lower base, a pair of electrically conductive helical springs each spring retained in each socket for resiliently clamping either input or output cord with either spring and either terminal and for resiliently retaining each terminal in each socket, and an electrical insulative rocker switching device seesawly mounted in the casing for operatively separating two contactor blades respectively protruded from the two terminals for disconnecting a power supply, or for contacting the two contactor blades of the two terminals for connecting the power supply.Type: GrantFiled: December 21, 1992Date of Patent: November 9, 1993Inventor: Chien-Lin Chung
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Patent number: 5211566Abstract: A docking assembly including a guide housing (2) and camming assembly (38, 54 and 40) for mechanically interfacing a modular component (46) with a circuit board to thereby complete and protect multiple electrical connections therebetween. An interfacing connector (80) is also disclosed for providing an electrical and mechanical interface between a circuit board and a disk drive (82). The interfacing connector (80) allows high-density multiple electrical interconnections to the circuit board by the use of canted coil springs (100) for direct electrical contact with individual traces and/or contact pads on the circuit board. The interfacing connector (80) may also include a docking assembly (130) with guide channels (136) for guiding insertion of a circuit board to thereby insure the integrity of the electrical interconnections therebetween.Type: GrantFiled: August 11, 1992Date of Patent: May 18, 1993Assignee: AMP IncorporatedInventors: Warren A. Bates, Frederick R. Deak, David C. Johnson, Robert M. Renn, Keith L. Volz
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Patent number: 5207599Abstract: An electric socket comprises an insulative housing having two cavities formed therein, an elongate generally pantile shaped terminal plate in each cavity, and a helical spring element secured snugly against each terminal plate. The prongs of an electrical plug can be inserted between the terminal plates and spring elements in respective cavities, wherein the blade type prongs are firmly wedged between associated spring elements and terminal plates so as to be in reliable electrical communication therewith. The housing can be further provided with a third, central cavity having a similar spring element disposed therein and a grounding plate of conforming curvature secured to a lower portion of the spring element. An additional rod type prong on an electrical plug can be inserted into the central cavity between adjacent turns of the spring element whose pitch distance is less than the diameter of the prong and received through a cooperating aperture on the grounding plate.Type: GrantFiled: June 26, 1992Date of Patent: May 4, 1993Inventor: Chien-Lin Chung
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Patent number: 5174763Abstract: A contact assembly is provided for connecting pairs of terminals of two circuits, which allows terminals to be positioned at high densities with minimum crosstalk, selected impedances, and minimum inductances for fast pulse rise times. The apparatus includes a dielectric frame (30, FIG. 2) having multiple miniature cavities (46), and an extendable contact assembly (26) lying in each cavity and having a pair of probes (32, 34) projecting from opposite faces of the frame. The two probes of each contact assembly are slideably engaged and are biased apart by a spring (70), the spring being constructed of dielectric material to avoid inductances and to allow for a high characteristic impedance. The frame can include a body (104, FIG. 6) having multiple plated through holes or cavities (106), and end wall structures (114) having dielectric bushings (122) shorter than the body holes and fitting into the body cavities.Type: GrantFiled: December 16, 1991Date of Patent: December 29, 1992Assignee: ITT CorporationInventor: Albert H. Wilson
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Patent number: 5158357Abstract: A battery powered pocket flashlight has a noncorrosive and electrically nonconductive case containing a restrictive aperture for the projection of light from the lamp source and a resilient color filter attached externally upon the end of the case by integral stub axles extending inward into the case for an axis of rotation intersecting perpendicular to the longitudinal axis of the flashlight for operation by the user in the selection of unfiltered light of the lamp source or a light at a color of the visible spectrum of colors. The filter is secured to the case by resilience of the filter material and by its shape in the form of an acute sector of a sphere. The electrical subsystem is completely removable from the case for servicing.Type: GrantFiled: September 13, 1991Date of Patent: October 27, 1992Inventor: Kevin McDermott
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Patent number: 5061191Abstract: An interposing connector for interconnecting a pattern of conductive areas of opposing spaced apart surfaces. The connector includes a housing having one or more openings therethrough. A plurality of canted coil springs are positioned within the housing so that outer coil portions are exposed to engage the conductive areas of the opposing surfaces to thereby establish the electrical interconnection. The canted coil springs are secured to the housing by retaining means, such as a retainer strip extending through the springs and secured to the housing. The springs may also be secured by heat staking or laser welding a portion thereof to the housing. The canted coil springs have a relatively constant compliance over a range of radial deflection. The springs also produce contact wipe over the conductive areas and establish redundant contact points therewith.Type: GrantFiled: December 21, 1990Date of Patent: October 29, 1991Assignee: AMP IncorporatedInventors: Albert Casciotti, Frederick R. Deak, Ronald A. Dery, David B. Wrisley, Jr.
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Patent number: 5059143Abstract: The present disclosure sets forth a unique contact structure for a separable electrical connector for carrying relatively high levels of current at high frequency in a high temperature environment. The contact utilizes a high loading spring design which permits a relatively low resistance and low inductance contact element. The contact element takes either of two forms. One form being a multiple wire spring formed in an open helical pattern and the other being a number of c-shaped contact elements arranged in concentric circles on a thin disk.Type: GrantFiled: September 8, 1988Date of Patent: October 22, 1991Assignee: AMP IncorporatedInventor: Dimitry G. Grabbe
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Patent number: 5030109Abstract: An area array connector (10) for electrically interconnecting circuit pads (18,20) on spaced apart, substrates (22,24) is disclosed. The connector (10) includes a carrier plate (12) having canted coil spring contacts (16) positioned in openings (14) for electrically interconnecting corresponding circuit pads (18,20) on the respective substrates (22,24) between which the connector (10) is placed.Type: GrantFiled: August 24, 1990Date of Patent: July 9, 1991Assignee: AMP IncorporatedInventor: Ronald A. Dery
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Patent number: 4998182Abstract: A connector is provided for a highly miniaturized integrated circuit imager that is supported in a sealed package that has a transparent distal plate and a plurality of connector pins that extend proximally from the package. The connector pins are trimmed short and metal coil springs are disposed on each of these pins. The connector includes tubular sockets mounted onto an elongated ceramic capacitor which serves to smooth power that is applied between the power and ground pins of the imager. A canister is situated over the imager to retain the same with the springs compressed against their respective sockets. Deflectable legs that extend proximally from the canister are bent inward and bound with a coil of fishline or other suitable cord to retain the canister in place.Type: GrantFiled: February 8, 1990Date of Patent: March 5, 1991Assignee: Welch Allyn, Inc.Inventors: Allan I. Krauter, Robert L. Vivenzio
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Patent number: 4966564Abstract: Electrical connection is established between the lead electrodes and the pacemaker terminals whereby a straight length of coil spring is placed within a hole transverse to the lead hole. A portion of the transverse hole intersects the lead hole so that a portion of coil spring extends transversely into the lead hole. The ends of the coil spring section are welded on opposite sides of the terminal. Electrical connection is made as the spring contacts the ring electrode on the lead.Type: GrantFiled: September 9, 1988Date of Patent: October 30, 1990Assignee: Telectronics, N.V.Inventor: Roger M. L. Foote
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Patent number: 4948224Abstract: A spirally wound resilient cylindrical or tubular connecting element adapted to connect or terminate pressure sensitive or brittle elongated conducting elements in either supporting or end-to-end conductive relationship. In one embodiment, the connecting element is comprised of a generally resilient cylindrical member having a hollow internal passageway therethrough adapted to receive said conducting elements in end-to-end relationship, said cylindrical member having integrally associated therewith a second, smaller, cylindrical member defining a second hollow passageway therethrough, said second hollow passageway adapted to receive an expansion strand or rip wire, said expansion strand having an outside diameter slightly larger than the internal diameter of said second hollow cylindrical passageway, wherein when said expansion strand is disposed within said second hollow cylindrical passageway the internal diameter of said first hollow cylindrical passageway is expanded beyond its equilibrium diameter.Type: GrantFiled: February 21, 1989Date of Patent: August 14, 1990Inventor: Henry J. Modrey
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Patent number: 4911367Abstract: A continuous electrical connection between a high voltage power source and a paint charging electrode in an electrostatic spray gun. The electrode is mounted on a valve needle which is reciprocated by a trigger mechanism as the spray gun is operated. A novel spring establishes and maintains the electrical connection from a stationary contact on the gun barrel to the moving valve needle. The spring may be mounted on a spacer tube mounted coaxially about the valve needle. The spacer tube can move in an axial direction to exert a force on a seal between the barrel and the valve needle without affecting the electrical connection.Type: GrantFiled: March 29, 1989Date of Patent: March 27, 1990Assignee: The DeVilbiss CompanyInventor: Charles T. Lasley