Patents Examined by Laramie E. Askin
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Patent number: 4797781Abstract: To install a high voltage device, particularly a high voltage breaker having two interrupting chambers and a high voltage insulator in a simple earthquake resistant manner, an end flange of the high voltage insulator on the ground potential side is rotatably suspended from the support beam of a steel frame. A vibration damper is preferably provided between the high voltage breaker and its suspension device. The vibration damper is attached to a ball received in a socket which is mounted on the support beam. The two interrupting chambers which are connected to one another in a V-shape, are connected to high voltage lines. This inverted suspension is also suitable for current and voltage transformers and overvoltage arresters.Type: GrantFiled: October 19, 1987Date of Patent: January 10, 1989Assignee: BBC Brown Boveri AGInventor: Dietrich Kluge
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Patent number: 4797513Abstract: To improve noise prevention and waterproof effects and simultaneously wiring workability of a funnel-shaped grommet used for wiring a wire bundle or a cable through a panel, a sealing material is put into the grommet from above to fill a space between a small-diameter cylindrical portion of the grommet and the wire bundle and gaps between wires. The sealing material is a two-liquid polyurethane resin based bonding agent or a nitrile rubber based bonding agent.Type: GrantFiled: November 25, 1987Date of Patent: January 10, 1989Assignee: Yazaki CorporationInventors: Mamoru Ono, Kohji Naruse, Toshio Okazaki
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Patent number: 4795856Abstract: A bracket useful for supporting and holding fiber optic or other cable to a utility pole, or the like, including the bracket having a base member, a shank portion extending integrally therefrom, being curved so as to center the bracket and held cable over its base member, the upper end of the shank portion being bifurcated, integrally formed into a pair of arms, that extend outwardly into the formation of cradle members that support the cable thereon. Tie members in combination with grommets are useful for holding the cable onto the bracket, at each cradle, and at that location between the pair of bracket arms at the location where they are integrally formed extending from the bracket shank portion.Type: GrantFiled: March 4, 1987Date of Patent: January 3, 1989Assignee: Aluma-Form, Inc.Inventor: Marion R. Farmer
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Patent number: 4795857Abstract: A waterproof housing which is intended to be buried in the ground, and which serves to protect the splices of buried electrical cables such as are used, for example, in irrigation control systems. The housing is formed of two identical half-sections configured to snap together around the crimped splice of two or more cables. Each half-section is pre-filled with a plastic insulating gel which becomes adhesively attached to the crimping sleeve of the splice and which forms a perimeter seal around the splice. Troughs are provided at one end of each section as a means of entry for wires to be spliced. Thin frangible dams are molded onto the outer ends of the troughs to maintain the gel in the half-sections during filling, and which are crushed by the cables when the two half-sections are pressed together.Type: GrantFiled: January 29, 1988Date of Patent: January 3, 1989Assignee: GardenAmerica CorporationInventor: Patrick M. McInnis
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Patent number: 4792647Abstract: The disclosed insulator has an insulating member with a cylindrical core, a metal cap with a central hole of inside diameter D so that the core of the member is cemented to the central hole of the metal cap, and a metal pin cemented to the inside of the core of the member. The metal pin has a cemented rod portion with a diameter d.sub.1 and a large-diameter portion with an outside diameter d.sub.2 at an end buried in the core of the member. The diameters satisfy the conditions of(d.sub.2 -d.sub.1)/d.sub.1 .ltoreq.0.5(D-d.sub.2)/d.sub.2 .ltoreq.1.8.Type: GrantFiled: April 15, 1988Date of Patent: December 20, 1988Assignee: NGK Insulators, Ltd.Inventors: Akihiro Watanabe, Hiroshi Nozaki, Mitsuharu Okamoto
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Patent number: 4791243Abstract: A compact device for absorbing kinetic energy generated by, for example, broken electric power lines on electric power transmission towers. The device consists of a non-spring helix, or in or out of plane flat coils that are placed between an electric transmission tower and the conductor insulator. The device deforms by plastically uncoiling in response to forces greater than a predetermined force. The device is a single-event device, designed to be replaced after one extraordinary dynamic event. The device can also be used in other structures or machinery requiring compact long stroke energy absorption.Type: GrantFiled: February 4, 1987Date of Patent: December 13, 1988Assignee: Anco Engineers, Inc.Inventors: Paul Ibanez, Kelvin L. Merz
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Patent number: 4791242Abstract: Line for transmitting electric energy, with bundle conductors enclosing into the bundle a metal or dielectric cable incorporating optic fibers for telecommuniation. The cable, in correspondence of each spacer of the bundle, is supported in a position placed on the vertical led through the barycenter of the bundle and at a distance from said barycenter included in a range of .+-.35% of the diameter of the bundle (i.e. the diameter of the circumference defined by the barycenters of the subconductors; + for positions above the barycenter, --for positions below the barycenter). The spacers are set at a mutual distance included between 30 m and 85 m. The optic fibres cable is clamped onto each spacer either by means of bolt clamps forming part of said spacer, or by means of helical armor rods wound around the optic fibres cable and around a cable positioning clamp fixedly connected to said spacer.Type: GrantFiled: December 14, 1987Date of Patent: December 13, 1988Assignee: Ente Nazionale Per L'Energia ElecttricaInventor: Marco Gatti
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Patent number: 4791245Abstract: The termination of a high voltage electric cable includes a rigid heat shrinkable tube that extends between the cable jacket and a connector mounted on the cable conductor. The tube is made from an engineering plastic material and has a Flexural Modulus and a Young's Modulus high enough so as to ensure that the termination is self supporting. The termination may be used in the transmission of power from one carriage to another of an electric train.Type: GrantFiled: March 10, 1988Date of Patent: December 13, 1988Assignee: Raychem LimitedInventor: David W. M. Thornley
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Patent number: 4791237Abstract: A grounding mechanism adapted for use with a support assembly suspending an overhead linear member. The grounding mechanism includes first and second leg portions disposed generally perpendicular to each other. The first leg portion has a generally arcuate conformation over its axial length. The second leg portion is angularly disposed relative to the longitudinal axis of the first leg portion so as to extend outwardly from the support assembly through gaps defined between helical rods gripping the linear member. The arcuate conformation of the first leg portion increases in dimension as it extends from a first distal end toward the second leg portion. Reinforcing ribs are disposed at the juncture of the first and second leg portions to strengthen the grounding mechanism. The new grounding mechanism is mounted between the helical rods and the cable within the support assembly.Type: GrantFiled: November 18, 1987Date of Patent: December 13, 1988Assignee: Preformed Line Products CompanyInventor: Thomas E. Sherman
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Patent number: 4786761Abstract: A gas insulated electrical apparatus comprises a hermetic sheath having a plurality of electrically conductive sheath sections each including flanged ends and a fastening device for fastening the flanged ends of the sheath sections together. A high voltage conductor is electrically insulatably supported within the sheath sections by an electrically insulating spacer which has a substantially uniform circumferential flange portion and is hermetically and securely held at the outer periphery thereof between the flanged ends of the sheath sections. An electrically insulating gas is disposed within the hermetic sheath. An electrically insulating member is interposed between at least one of the flanged ends of the sheath sections and the circumferential flange portion of the insulating spacer such that one portion of the electrically insulating member is exposed inwardly with respect to the hermetic sheath.Type: GrantFiled: June 29, 1987Date of Patent: November 22, 1988Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Hiroyuki Hama, Hiroshi Yamamoto
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Patent number: 4786759Abstract: This articulated cable head includes a universal joint whose support (4) and ring (5) are made of fiber and epoxy resin laminates obtained by winding threads. The universal joint head (6) is spherical in shape and is made, together with an oscillating arm (7) which extends therefrom, as a single piece of cuproberyllium alloy. The oscillating arm (7) carries a tubular stop part (8) made of fiber and epoxy resin laminate obtained by winding threads, which is surrounded by a rubber sleeve (80, 81, 82) providing a transition in diameter, and which is hollowed out by a cavity serving as a housing for an anchor part (9) attached to the end of a line cable (2).Type: GrantFiled: November 12, 1987Date of Patent: November 22, 1988Assignee: Les Cables de LyonInventor: Jean-Pierre Gouverneur
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Patent number: 4786762Abstract: A hermetic terminal assembly for a motor unit housing including a cup-shaped body, the bottom of which has a rim and at least one hole defining an annular sealing lip extending in the same direction therefrom through which hole an electrical connection pin extends in sealed relation thereto with the pin insulated by a protective insulating extension sleeve bonded to a sealing insulator, the extension sleeve being formed relative the sealing insulator member and lip extremity to contact the outer periphery of the lip to remove possible sealing insulator cracking to a position removed from the pin.Type: GrantFiled: March 3, 1988Date of Patent: November 22, 1988Assignee: Emerson Electric Co.Inventors: Benjamin Bowsky, Larry G. Burrows, Glenn A. Honkomp
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Patent number: 4786757Abstract: A flexible electromagnetic pulse shielding conduit for electrical conductors which is constructed of a backshell to which is secured a flexible, sheet material tube and an electrically conductive metallic braid. The braid is located about the tube with both the braid and the tube being secured to the backshell through the use of a metallic band which is shrunk concentrically through the technique of magnetic pulse forming which thereby makes a positive secure connection between the backshell, the braid and the tube. A rubber sleeve is located about the braid which is also secured to the backshell through the technique of magnetic pulse forming which shrinks a second metallic band. The second metallic band overlaps the first metallic band.Type: GrantFiled: November 23, 1987Date of Patent: November 22, 1988Assignee: 501 Fleetwood Electronics, Inc.Inventors: Max T. Owensby, Richard J. Van Ness, Richard J. Delahunty
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Patent number: 4785139Abstract: A flexible, high pressure housing is included in an equipment encloure between sections of a signal communication cable. The housing includes an axially compressed length of corrugated tubing in which the corrugations have been collapsed against the another. Housing ends are sealed to maintain a predetermined interior pressure in spite of variations in pressure outside the housing. Also included in the enclosure are structures for applying the outside pressure to the housing so that it is resiliently transversely flexible in response to similar outside and inside pressures but rigid in response to outside pressures much greater than inside pressures.Type: GrantFiled: May 30, 1986Date of Patent: November 15, 1988Assignee: American Telephone and Telegraph Company, AT&T Bell LaboratoriesInventors: John F. Lynch, Michel Y. Rondeau
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Patent number: 4785376Abstract: A utility pedestal primarily designed as a marina power pedestal but useful in connection with recreational vehicles and other power consuming units. Twin half shell housing members joined by an anodized aluminum strip closure member forms an upper pedestal. The strip closure member has an inner extending flange to which a central divider is secured to divide the upper pedestal into two substantially symmetrical compartments, one for high voltage and one for low voltage such as telephones and cable television. An open bottom base pedestal supports the upper pedestal and is secured to the dock pier. It contains the water utilities and is provided with a slotted top to introduce high voltage cables into the high voltage compartment of the upper pedestal.Type: GrantFiled: April 14, 1987Date of Patent: November 15, 1988Inventor: Robert C. Dively
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Patent number: 4782197Abstract: An electrical bushing for use in connection with an electrical apparatus which includes a replaceable stud connector. The replaceable stud has a pair of axially aligned threaded shanks on each side of a flange. The flange on the replaceable stud engages a flange on an electrical conductor in the bushing when one of the threaded shanks of the replaceable stud is threaded into a threaded bore in the electrical conductor, whereby any breakage of the replaceable stud will tend to occur in the other threaded shank.Type: GrantFiled: March 21, 1988Date of Patent: November 1, 1988Assignee: Westinghouse Electric Corp.Inventors: Joseph M. Stunzi, Donald J. Ristuccia
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Patent number: 4781255Abstract: A conduit system for cables adapted for mounting in a vehicle including constant cross-sectional elongate conduit elements 1 having one or more channels 3 formed therein and retention and locking members for holding the cables within the or each channel at intervals along their lengths. The conduit system may comprise a plurality of straight conduit elements 1 connected end to end, for example in an aircraft fuselage. Alternatively, where a change of direction and/or elevation is necessary, the straight conduit elements may be interconnected by curved joining conduit elements 2.Type: GrantFiled: December 6, 1985Date of Patent: November 1, 1988Assignee: British Aerospace Public Limited CompanyInventors: Stanley A. Lock, Brian E. Mills
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Patent number: 4782199Abstract: A high voltage porcelain insulator having a glaze applied to at least a head portion of the insulator which head portion is covered by a metal fitting and a cement. The glaze essentially consists of, in terms of weight, from 64.0 to 68.0% of SiO.sub.2, from 17.5 to 19.0% of Al.sub.2 O.sub.3, from 5.0 to 6.5% of MgO, not more than 3.0% of CaO, from 2.0 to 2.8% of K.sub.2 O and Na.sub.2 O in a total amount, and from 3.0 to 9.0%, when calculated as MnO, a compound which is converted to MnO and or MnO.sub.2 after being fired at a temperature range suitable for firing porcelain.Type: GrantFiled: October 26, 1987Date of Patent: November 1, 1988Assignee: NGK Insulators, Ltd.Inventors: Shoji Seike, Takao Totoki, Toshiyuki Mima
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Patent number: 4782198Abstract: A suspension insulator includes a compressive strain of more than 60.times.10.sup.-6 in the ceramic insulator body at least in the circumferential direction in the vicinity of the shed root of the ceramic head portion of the suspension insulator, whereby a suspension insulator causes no accidents such as separation of cap and pin of suspension insulator, line drop of power transmission lines and the like, even when shot by a rifle.Type: GrantFiled: February 25, 1987Date of Patent: November 1, 1988Assignee: NGK Insulators, Ltd.Inventors: Tsutomu Moriya, Hiroyuki Shinokubo
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Patent number: RE32820Abstract: There is provided an electric cord holder assembly composed of a connecting element for interconnecting the adjacent ends of two electric cord holders to present an aesthetically pleasing continuous electric cord holder. The connecting element is provided with a dome-shaped configuration corresponding with the dome-shaped configuration of the electric cord holders and is further provided with bosses on the ends thereof which engage with the ends of the dome-shape of the electric cord holders. When in place, the connecting elements engage with the electric cord holders at their adjacent ends to cover any space therebetween.Type: GrantFiled: September 21, 1987Date of Patent: January 3, 1989Inventor: Ronald M. Pollack
