Towers, Poles Or Posts Patents (Class 174/45R)
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Patent number: 6143980Abstract: An assembly for clamping and retaining a cable in attached relation to a utility pole. The assembly generally includes a block portion and clamping member pivotally and slidably connected thereto. The block member includes a rear end having a bored hole formed therein, a recessed portion formed in its upwardly facing surface, and a pair of spaced apart tongues vertically spaced from the recessed portion. The clamping member includes a body portion and a pair of spaced apart forks extending downwardly therefrom which are movable between engaged and disengaged relation to the recessed portion. A pivot pin passes through the body of the clamping member and the tongues of the block member. The hole formed through the clamping member's body is oval in shape so as to permit not only pivotal movement thereof with respect to the block member, but also sliding movement. The forks and tongues are shaped so as to receive and clamp a cable thereinbetween.Type: GrantFiled: August 13, 1998Date of Patent: November 7, 2000Inventor: Douglas Blanding
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Patent number: 6127625Abstract: A tubular channeling unit including a grounded external metal sheathing and an internal longitudinal cavity, and method for laying such a tubular channeling unit by suspension on a high voltage aerial power line system including at least two towers supporting a set of high voltage electrical conductors suspended from the towers at a specified height above the ground and at a minimum predetermined safety level.Type: GrantFiled: April 16, 1998Date of Patent: October 3, 2000Assignee: Professional Communications, S.A.Inventor: Ruben Carlos Castano
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Patent number: 6078008Abstract: A load-breaking and load-returning apparatus and method of breaking and returning a load are provided for quickly breaking and returning a load to portions of a power line. The apparatus preferably includes at least one power line jumper cable including first and second cable ends and a first connector connected to the first cable end of the at least one power line jumper cable for connecting the at least one power line jumper cable to a portion of a power line. A load-breaking and load-returning device is preferably connected to the second cable end of the at least one power line jumper cable for quickly breaking and returning a load to portions of a power line responsive to a user thereof. The load-breaking and load-returning device preferably includes a second connector for connecting the load-breaking and load-returning device to a portion of a power line.Type: GrantFiled: September 30, 1997Date of Patent: June 20, 2000Assignee: Utility Solutions, Inc.Inventors: Eugene H. Wood, Michael G. Nolte, David A. Franklin
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Patent number: 6070316Abstract: In order to fit an optical cable to a cable of an overhead line, a lashing apparatus is provided which runs along the cable of the overhead line. A pylon bypass for the lashing apparatus of the optical cable is fitted to a line pylon and is designed such that the lashing apparatus is diverted from the respective cable in the region of the pylon and is passed around the pylon by the pylon bypass.Type: GrantFiled: October 8, 1998Date of Patent: June 6, 2000Assignee: Siemens AktiengesellschaftInventors: Gunter Einsle, Dieter Kreutz
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Patent number: 6057508Abstract: The invention uses one or more scissor devices, or disks, or cogs such that the axial thermal expansion of a coupling member is amplified such that this amplified movement is used to automatically mitigate the sag of a suspended line; the same ambient temperature change that causes the line to sag concomitantly causes the coupling member to expand, so that sag mitigation is passive and automatic. The invention includes a device for automatically mitigating thermal expansion sag in suspended lines comprising a coupling member or actuator rod (140) that expands axially with increasing temperature and that is mounted between the proximal arms (110) of a reverse-scissor component (60), said reverse-scissor component having first arms (70) and second arms (80) and a hinge (90) and the arms having distal ends (100) longer than proximal ends (110). The distal arms are insulated by insulators (130). The reverse hinge acts such that when the proximal arms are moved apart, the distal arms are brought together.Type: GrantFiled: August 7, 1998Date of Patent: May 2, 2000Inventor: Manuchehr Shirmohamadi
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Patent number: 5983591Abstract: A solid wooden pole (1) for use as a lighting pole or as a decoration pole. To improve the versatility of the pole, the center part (2) of the pole is provided with a bore (3) extending longitudinally through the pole. An electrical cable may be provided in the bore to provide a durable structure which is significantly less expensive to manufacture than a metal or plastic pole.Type: GrantFiled: August 27, 1997Date of Patent: November 16, 1999Assignee: Luxi Wood OYInventor: Harri Stigell
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Patent number: 5969291Abstract: An overhead-line mast includes a bar-shaped and insulated mast head, current-carrying conductors fastened to insulators of the insulated mast head and a ground conductor disposed on a mast tip of the insulated mast head. The ground conductor is connected electrically to a neutral point on a mast base by a ground conductor connection extending in the interior of the overhead-line mast. The ground conductor connection is sheathed by an insulating layer. The insulating layer is covered in each case by an insulating cone at the level of the current-carrying conductors. An annular electrode extends in or on each insulating cone. An insulating filler is inserted between the insulating layer and the insulating cones on one hand and the insulators of the insulated mast head on the other hand.Type: GrantFiled: January 21, 1998Date of Patent: October 19, 1999Assignee: ABB Research LTDInventors: Arnaldo Bertazzi, Helmut Bohme, Johannes Kaumanns, Karl-Bernhard Muller, Gernot Schlayer, Andrea Catenacci
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Patent number: 5880404Abstract: Supports for power transmission lines are made of inductively transparent, inorganic cement composite materials. Separate parts of the structure are provided with mating surfaces and are secured together by expanding grout. When the structure is in the form of a pole, the bottom of the pole can be attached to a base by sleeves secured to the pole.Type: GrantFiled: June 26, 1997Date of Patent: March 9, 1999Assignee: Advanced Metals Technology CorporationInventors: Earl K. Stanley, John R. Mott
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Patent number: 5847318Abstract: A reinforcement assembly for use in the hand access hole of a tubular shaft. In one embodiment, the assembly includes a pair of units placed opposing each other with one being inside the shaft and the other being outside the shaft. Each unit has a plurality of tenons that mate with open spaces of the opposing unit, and each has a flange surrounding the tenons that contact the shaft in the area immediately surrounding the hand hole. The two units are attached to each other and to the shaft by bolts or other suitable fastening devices. In another embodiment of this invention, the pair of units are positioned one inside the other with at least one mating mortise and tenon union for securely linking the units. A typical application of the assembly is reinforcement of the area surrounding the hand hole of a utility pole.Type: GrantFiled: October 17, 1996Date of Patent: December 8, 1998Inventor: William A. Chapman
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Patent number: 5820255Abstract: A lighting-fixture support pole includes an interior cavity and a hand-hole opening having a length and a width. The improvement comprises a mounting plate having an interior surface and a sealing member compressed between such surface and the pole. The sealing member has an aperture therethrough with dimensions about equal to the length and width, respectively, of the hand-hole opening. A termination box extends from the mounting plate into the cavity and a receptacle is on the exterior surface of the mounting plate. The improved support pole permits a customer to opt for a blank plate or for a plate-mounted receptacle to close the opening. No opening other than the hand-hole opening need be provided in the pole.Type: GrantFiled: February 14, 1997Date of Patent: October 13, 1998Assignee: Ruud Lighting, Inc.Inventors: James S. Carrington, Donald Wandler
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Patent number: 5796034Abstract: A wire protecting shield including an oblongated sheet metal plate having an upper surface, a lower surface, a right side, a left side, a right edge, a left edge, a first end, a second end, and having a midline axis; the right and left sides of the sheet metal plate being under-folded so that the right and left edges of the sheet metal plate are positioned substantially parallel with the midline axis, and respectively below and to the right and left of the midline axis, the sheet metal plate forming a wire protecting channel having a pair of sidewalls and a ceiling, the sidewalls including the right and left edges of the sheet metal plate, and the ceiling including the lower surface of the sheet metal plate.Type: GrantFiled: April 2, 1997Date of Patent: August 18, 1998Inventor: Britt Pate
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Patent number: 5777272Abstract: A color banded jacket assembly is disclosed for use in combination with an antenna feed cable. The assembly includes a plurality of generally tubular first and second jacket segments, each having a split formed longitudinally therein. The antenna feed cable is selectively introduced into and removed from the jacket segments through the splits. Each jacket segment is sufficiently large to wrap at least partially about the periphery of a cable that is introduced into the jacket segment. A plurality of distinct first and second color bands are formed circumferentially about the first and second jacket segments, respectively. The first and second jacket segments are arranged longitudinally on the cable to mark the cable in an alternating color pattern. A method of marking an antenna feed cable through the use of such a color banded jacket is also disclosed.Type: GrantFiled: November 12, 1996Date of Patent: July 7, 1998Inventor: Nick Rouskey
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Patent number: 5772158Abstract: A combination of apparatus for laterally offsetting power lines from a utility pole, and maintaining the utility pole in an essentially vertical orientation and statically balanced condition. A truss assembly is pivotally mounted to a utility pole adjacent the top thereof. The truss includes a tubular member which extends in laterally spaced, parallel relation to a utility pole, and which receives therethrough an elongated rod adapted to securely receive and support several types of power lines. The elongated rod includes several insulated candlesticks, or wire receiving members, on its top end, and includes several, longitudinally spaced holes formed transversely therethrough, each one of which operably receives an insulated, wire receiving bolt. To counter-act the unbalanced load placed on the utility pole by the laterally offset power lines, a guy wire is attached at its ends to the upper and lower ends of the utility pole.Type: GrantFiled: December 2, 1996Date of Patent: June 30, 1998Inventor: Douglas Blanding
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Patent number: 5749198Abstract: A high voltage electrical transmission line support structure is constructed virtually completely from glass reinforced composites, comprised of vertical ribs, reinforcing cross bracing members and a skin composed of composite panels, enabling the reduction in elevation and closer spacing of conductors, and the creation of a smaller support structure weighing half or less the weight of a steel tower of the same power rating. The resulting structure requires substantially less ground right-of-way, and EMF radiation is attenuated in the immediate tower area due to the closer phase spacing.Type: GrantFiled: September 28, 1993Date of Patent: May 12, 1998Assignee: Ebert Composites CorporationInventor: David W. Johnson
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Patent number: 5726507Abstract: An electrical interface provides a permanent electrical facility electrically connected to a temporary electrical facility which provides electrical utilities to construction sites which can be activated by a non-utility qualified individual. The electrical interface generally comprises (a) permanent electrical facilities that provide electrical power to a residential neighborhood; and (b) temporary electrical facility electrically connected to the permanent electrical facilities. The temporary electrical facility provide electrical utilities to construction sites which can be activated by a non-utility qualified individual(s). The temporary electrical facility further comprises a non-conductive housing and a base, electrical connectors, and a electrical converter. The nonconductive housing fits over and doses the base. Alternate temporary electrical facilities comprise a pole, electrical connectors, and an electrical converter.Type: GrantFiled: January 19, 1996Date of Patent: March 10, 1998Assignee: Basic Resources, Inc.Inventor: James D. Tipton
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Patent number: 5641939Abstract: An access door cover system for an access port of a utility pole. The cover system includes a removable cover which has grooves for receiving straps. The straps engage the cover along the grooves of the cover and surround the utility pole when the cover is applied to the access port in front of the pole. The straps are secured in a tight bands by locking clips.Type: GrantFiled: January 11, 1996Date of Patent: June 24, 1997Assignee: Angel Guard Products, Inc.Inventor: Paul T. Tourigny
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Patent number: 5605017Abstract: A utility line support structure for use as a tangent crossarm or deadend including a hollow fiber reinforced beam with a bushing inserted into a transverse hole in the beam. Bushing includes a hollow inner member for receiving a bolt and a pair of integral washers arranged on opposite ends of inner member and against an outer surface of the beam. The hollow inner member and the integral washers cooperate to support axial loads applied by the bolt. End caps extend over opposite ends of the beam to seal the beam so as to prevent moisture from entering the beam. Also, a method for adapting a non-standard-sized utility line support beam to be compatible with standard-sized tooling.Type: GrantFiled: January 13, 1994Date of Patent: February 25, 1997Assignee: PUPI Enterprises L.L.C.Inventors: Conrad F. Fingerson, William J. O'Brien
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Patent number: 5550708Abstract: Remote access disconnect and fusing arrangement including an assembly having a housing with at least one wall panel; an arrangement for ducting ac-power into the housing; the ac-power including at least two non-grounded hot conductors, a disconnect arrangement in the housing connected in series with the hot conductors; a distribution terminal assembly having a plurality of input terminals each connected to a respective one of the hot conductors, and a plurality of groups of output terminals, each group of output terminals connected in parallel to a respective one of the input terminals; a plurality of current limiting elements each having an element input connected to a respective one of the output terminals and an element output; and at least one female plug connector mounted on the wall panel, having a plurality of female receive terminals, each female receive terminal connected to a respective element output.Type: GrantFiled: January 23, 1995Date of Patent: August 27, 1996Inventor: Steven L. Siems
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Patent number: 5524411Abstract: A cover for a handhole of a utility pole is provided. The cover includes a plate with a bolt passing therethrough and a back bracket threaded to the bolt. The back bracket is configured to engage an inwardly extending lip formed on a periphery of the handhole opening. A plate includes a recess which is directed inward towards the back bracket. The bolt passes through a hole in a floor of the recess. The recess inhibits unauthorized access to a head of the bolt. A spring is interposed between a head of the bolt and the floor which biases the back bracket toward the cover. The back bracket remains in contact with the inwardly extending lip of the handhole opening unless the head of the bolt is depressed, compressing the spring to allow the back bracket to be rotated.Type: GrantFiled: November 24, 1993Date of Patent: June 11, 1996Inventor: Robert G. Crossman
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Patent number: 5483019Abstract: A utility structure having a utility pole and a closure apparatus for the access port of the utility pole. The closure apparatus includes a removable cover which has grooves for receiving straps. The straps engage the cover along the grooves of the cover and surround the utility pole when the cover is applied to the utility port in front of the access opening of the pole. The straps are secured in a tight bands by locking clips.Type: GrantFiled: September 13, 1993Date of Patent: January 9, 1996Assignee: Angel Guard Products, Inc.Inventor: Paul T. Tourigny
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Patent number: 5452871Abstract: An improved support bracket which is adapted to be mounted on a utility pole for supporting communication cable which is an integrally formed pair of arms in a generally V shape having outer ends terminating in a pair of reversely curved diverging mounting flanges that receive fastening means for attaching to the pole and the apex portion of the arms has first and second transverse clamping members, one of the clamping members being fixed to the arms and the other clamping member being adjustably movable to form a jaw for holding and clamping a cable between the clamping members. The clamping members are preferably held in pre-assembled form with screw fasteners for ease of use and time savings by installers. An elongated extension arm bracket is reversibly securable to the fixed one of the clamping members and receives a similar movable clamping member at its free end to hold a cable.Type: GrantFiled: March 30, 1994Date of Patent: September 26, 1995Inventor: Charles J. Sauber
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Patent number: 5445348Abstract: An auxiliary cable mounting attachment is disclosed which allows mounting a third communication cable at a position displaced from superjacent power lines and existing communication cables. The attachment clamps to an existing support bar without modification thereto and extends outwardly therefrom to support a clamp engagement for the auxiliary cable.Type: GrantFiled: September 12, 1994Date of Patent: August 29, 1995Assignee: Reliable Bethea Power Products, Inc.Inventors: William D. Caldwell, Wei-Chung Lin
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Patent number: 5426577Abstract: Pole mounted lighting system including mounting components to mount such things as an integrated multiple cross-arm assembly to a pole, a remote ballast box to the pole, or an integrated cross-arm ballast box to the pole. The mounting structures include adjustable connection members which allow customization of fit to different size poles.Type: GrantFiled: February 23, 1993Date of Patent: June 20, 1995Assignee: Musco CorporationInventors: Myron K. Gordin, Jim L. Drost
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Patent number: 5399803Abstract: A valve stack for high voltages includes a number of electrically interconnected valve modules, some of which are disposed one above the other. To prevent a large fire in a valve module from spreading upwards to valve modules positioned above it, fire screens are arranged between valve modules located one above the other.Type: GrantFiled: May 5, 1994Date of Patent: March 21, 1995Assignee: Asea Brown Boveri ABInventors: Mats Johansson, Fredrik Ruter, Urban Astrom
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Patent number: 5335160Abstract: An improved outdoor lighting system is provided that comprises a light assembly formed from at least one tubular mast having a distal end for supporting an electrically powered light source, and a proximal end mounted in the ground, and an electrical cable for connecting the light source to an underground power source. The improved system includes an electrical connector assembly in the cable located in the vicinity of the ground-mounted distal end of the tubular mast. The electrical connector assembly spontaneously disconnects in response to an application of an tensile force indicative of an automobile collision with the mast, thereby preventing damaging tensile forces from being transmitted along the underground portion of the cable to the circuit breaker.Type: GrantFiled: July 13, 1993Date of Patent: August 2, 1994Assignee: DuralineInventor: Paul F. Savoca
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Patent number: 5266738Abstract: A utility light pole having a main pole section and a pole end section adapted for supporting a selected one of a plurality of light fixtures above a base such that once constructed, the pole main section and the pole end section form a uniform exterior appearance. A utility light pole is formed from an elongated tubular pole main section adapted for availability in different lengths and a tubular pole end section provided which is relatively shorter than any available length of the pole main section for attachment to the pole main section. A variety of pole end sections having various mounting hole patterns to accommodate different light fixtures are provided. A first and second adapter plates means provided for securely removably fastening the pole end section to the pole main section so that they may combine to provide a uniform exterior appearance.Type: GrantFiled: October 25, 1991Date of Patent: November 30, 1993Assignee: United Lighting Standards, Inc.Inventor: Douglas W. MacVoy
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Patent number: 5247774Abstract: A high voltage electrical transmission line tower is constructed virtually completely from insulated pultruded composites, enabling the closer spacing of conductors and the creation of a smaller tower structure and weighing half or less the weight of a steel tower with the same power transmitting capabilities.Type: GrantFiled: June 14, 1991Date of Patent: September 28, 1993Inventor: David W. Johnson
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Patent number: 5175442Abstract: A six-phase power line configuration reduces the measured intensity of electric and magnetic fields that are associated with transmitting AC electric power. An open-wire configuration is taught that is compatible with transmission on power line right-of-ways, and that can be made by converting existing three-phase dual circuit power lines.Type: GrantFiled: October 5, 1990Date of Patent: December 29, 1992Inventor: James R. Ashley
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Patent number: 5128648Abstract: An in-line cutout comprises an elongated insulator having high tensile strength to support a length of cable between poles. Electrically conductive caps are secured to the ends of the insulator, and a fusible link is connected between the caps. One cap is electrically connected to the main line and the other cap is secured physically and electrically to the end of a branch line.Type: GrantFiled: January 22, 1990Date of Patent: July 7, 1992Inventor: Frank J. Brandi
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Patent number: 5088010Abstract: Fastening mechanism for a transformer module and a signal generator for mounting at a signal tower.A bottom pan is provided having a multi-use holder, a receptacle for a transformer module, and a holding structure with a cable opening for a signal generator. The pan is mated with a cover forming a terminal space, a terminal block being arranged in this terminal space. The transformer module has catch hooks which are secured to corresponding catch noses in the receptacle. The transformer module comprises a transformer, a rectifier, and a lead. The applied multi-use holder comprises a U-shaped cable channel region communicating with a cable lead-through opening in the side wall of the bottom pan. A cable wind-up structure is provided in the terminal space. The cover is held to the pan by at least one catch nose and one catch tongue that are applied to the bottom pan and that engage into corresponding recesses in the cover.Type: GrantFiled: September 26, 1990Date of Patent: February 11, 1992Assignee: Siemens AktiengesellschaftInventors: Walter Wimmer, Herbert Krautwald, Guenter Heinzel
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Patent number: 5079891Abstract: A bidimensional support or tower for overhead electric energy transmission lines is formed of a flat truss structure, the stringers of which consist of at least one truss beam comprising a pair of cold-bent channel sections connected together, with their cavities facing, by means of a zigzag-bent steel rod applied by welding to the flanges of said sections. Said tower comprises two stringers connected by one or more horizontal girders, which stringers can be vertical and parallel, or else converging towards the top substantially in correspondence of the point where the loads are applied, in which latter case a vertical structural element is provided above said point. Said stringers and said vertical structural element are formed of said truss beams, positioned either singly or side-by-side.Type: GrantFiled: July 12, 1990Date of Patent: January 14, 1992Assignee: SAE Sadelmi S.p.A.Inventor: Luigi Paris
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Patent number: 5036162Abstract: A mount for securing a load, for example a strut insulator, to a stationary support has a pair of end parts one of which is fixed to the load and the other of which is fixed to the support and a pair of respective intermediate parts. Respective end pivots connect the intermediate parts to the end parts for pivoting thereon about respective axes that are perpendicular to each other and a central pivot connects the intermediate parts to each other for relative pivoting about a center axis lying substantially perpendicular to the end axes. One of these end axes is at least generally horizontal and at least generally aligned with the load.Type: GrantFiled: September 1, 1989Date of Patent: July 30, 1991Assignee: Lapp Insulator CompanyInventor: Stefan S. Zajfert
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Patent number: 5009734Abstract: Insulating equipment (100) includes a flexible arm (1) having at one of its ends a means for attachment to a pole and at the other end means for attaching an electric line substantially perpendicular to the arm (1). The thickness of the arm (1) decreases regularly from the means of attachment to the pole toward the means of attachment to the electric line, while the height of the cross section of the arm is constant. The arm (1) has in the direction of its thickness a series of layers (7a, 7b, 7c, 7d) of continuous mineral fibers extending in the direction of the arm's length and separated by layers (8a, 8b, 8c, 8d) of randomly-oriented short mineral fibers. These layers are bonded by a synthetic resin in which a layer (9a, 9b) of fabric of mineral fibers may be placed on each side of the arm (1) between the first layer of short fibers and the following layer of continuous fibers. To be used for improving longitudinal flexibility and resistance to vertical loads.Type: GrantFiled: June 29, 1989Date of Patent: April 23, 1991Assignee: Manufacture d'Appareillage Electrique de CahorsInventor: Michel Therond
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Patent number: 4914258Abstract: A cover for the access opening of utility poles is provided which has a shell dimensioned to overlie the opening. The shell has a flanged perimeter which conforms to the outside diameter of the pole. The shell is held in place by a bolt which extends through the shell and into the interior of the pole to engage a bar positioned within the pole, across the access opening. Preferably, the head of the bolt is seated within a recess in the shell to thwart unauthorized removal of the shell.Type: GrantFiled: November 14, 1988Date of Patent: April 3, 1990Inventor: Burt B. Jackson
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Patent number: 4903442Abstract: A mast for measuring or illuminating purposes, especially for flight navigation lights or for wind measuring devices, which is designed as a glass-fiber or carbon-fiber reinforced plastic mast.Type: GrantFiled: September 23, 1988Date of Patent: February 27, 1990Assignee: G. A. Pfleiderer GmbH & Co. KGInventor: Hartmut Trommen
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Patent number: 4894759Abstract: A pre-wired unitary support assembly for mounting floodlights on a pole. The support assembly has a vertically elongated rigid channel that is to be bolted to the pole, a junction box on the front of the channel, a hollow cross arm on the front of the channel above the junction box, electrical wiring extending from inside the junction box up into the cross arm through a tube assembly between them and out along the inside of the cross arm to wiring fittings on the front where insulated cables for the corresponding floodlights extend into the cross arm, adapters on the top of the cross arm near the wiring fittings for the attachment of the usual support yokes for the floodlights, removable access plates on the bottom of the cross arm adjacent the wiring fittings on the front, and a protective wiring sleeve extending down from the junction box.Type: GrantFiled: January 19, 1989Date of Patent: January 16, 1990Inventor: Steven L. Siems
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Patent number: 4867399Abstract: Insulating equipment (100) includes a flexible arm (1) having at one of its ends a means for attachment to a pole and at the other end means for attaching an electric line substantially perpendicular to the arm (1). The thickness of the arm (1) decreases regularly from the means fo attachment to the pole toward the means of attachment to the electric line, while the height of the cross section of the arm is constant. The arm (1) has in the direction of its thickness a series of layers (7a, 7b, 7c, 7d) of continuous mineral fibers extending in the direction of the arm's length and separated by layers (8a, 8b, 8c, 8d) of randomly-oriented short mineral fibers. These layers are bonded by a synthetic resin in which a layer (9a, 9b) of fabric of mineral fibers may be placed on each side of the arm (1) between the first layer of short fibers and the following layer of continuous fibers.To be used for improving longitudinal flexibility and resistance to vertical loads.Type: GrantFiled: March 15, 1988Date of Patent: September 19, 1989Assignee: Manufacture D'Appareillage Electrique de CahorsInventor: Michel Therond
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Patent number: 4864467Abstract: A utility meter mounting pedestal for use in providing underground utility service, particularly electric service, to a construction site after a foundation has been constructed but before a building has been erected upon the foundation. The pedestal comprises a vertical L channel post, flat steel upper and lower plates secured to the post at the opposite ends thereof. The upper plate carries a utility meter box and the lower plate is nailed to the front surface of the building foundation. A foundation anchor strap is adjustably secured to the post between the ends thereof and is nailed to and in overlying relationship with the top surface of the foundation.Type: GrantFiled: August 19, 1988Date of Patent: September 5, 1989Assignee: H & M Manufacturing CompanyInventors: Curtis W. Byrd, Jerry D. Byrd
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Patent number: 4853492Abstract: An electric transmission conductor support insulator made of plastic material for mounting on the top of a utility pole basically includes an elongated cylindrical body having a top end and a bottom end, a longitudinal bore within the body extending through the bottom end and tapering inwardly toward the top end, at least one circular ledge extending laterally from the body. The ledge has an upper surface, a lower surface and a side surface, the upper and lower surfaces are positioned normal to the longitudinal axis of the body, the lower surface being larger in diameter than the upper surface with the side surface sloping inwardly toward the body from the lower surface to the upper surface, and there is a circular notch in the side of the body juxtaposed above the ledge which notch is sized to admit a substantial portion of a conductor to be supported by the insulator.Type: GrantFiled: September 28, 1988Date of Patent: August 1, 1989Inventor: Carl L. Hussey
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Patent number: 4832442Abstract: A long-distance transmission fiber optic cable system suitable for outdoor aerial installation includes a continuous length of non-metallic messenger cable with an aramid fiber, tension load bearing core and a predetermined tension load bearing strength and a polymer outer jacket adapted for outdoor exposure and a continuous length of fiber optic cable, longer than the continuous length of non-metallic messenger cable and including a plurality of fiber optic waveguides within an outer polymer jacket adapted for outdoor exposure and having a tension load bearing strength less than the predetermined tension load bearing strength, and preferably non-metallic, helically wound around the continuous length of the non-metallic cable so as to permit free axial movement. Continuous lengths of 40,000 feet or more of the preferred non-metallic messenger cable and fiber optic cables suitable for outdoor use have been made.Type: GrantFiled: July 17, 1987Date of Patent: May 23, 1989Assignee: United Ropeworks (U.S.A.) Inc.Inventor: Vincent J. Pappas
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Patent number: 4812958Abstract: An electrical services pole which is height adjustable for clamping between the floor and the ceiling of a room. The pole comprises an upper tubular core section vertically overlapping a lower tubular core section and forming therewith a vertical conduit for cables. A plurality of socket outlets are provided on the lower core section and removable cladding forming an outer sleeve is provided around at least the lower tubular core section to protect but give access to the socket outlets.Type: GrantFiled: December 17, 1986Date of Patent: March 14, 1989Assignee: Rolfe & King Limited of the Lansbury EstateInventors: John A. Rolfe, Arthur W. Dalton, Robert Silvester
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Patent number: 4803819Abstract: This relates to reinforced hollow utility poles, and attachments therefore, formed by pultrusion of dielectric insulating material, such as glass fiber reinforced resin, and the method of fabricating the same.Type: GrantFiled: November 3, 1986Date of Patent: February 14, 1989Inventor: Frank Kelsey
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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: 4787793Abstract: A bolt guard assembly utilizes a central sleeve and first and second end caps to separate a metal fastening nut and bolt from a pair of wood products that have been treated with a preservative. The bolt guard assembly is formed of a plastic material and prevents the metal fastener from coming into contact with the treated wood products. The central sleeve is sized to telescopingly receive crimped barrel ends of the two end caps. Each of these end caps is structured having a fastener head or nut receiving pocket which receives the head or nut of the fastener and isolates them from the wood. Fastener life is greatly increased through use of the bolt guard assembly.Type: GrantFiled: March 27, 1987Date of Patent: November 29, 1988Assignee: Terrell Lee SharpInventor: Gary R. Harris
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Patent number: 4769967Abstract: A cylindrical pole of plastic material having the primary function of supporting electric power transmission lines is reinforced by a filament-wound structure in which the filament density decreases progressively from the lower end to the upper end of the pole and has the effect of modifying the mechanical characteristics along the length of the pole.Type: GrantFiled: May 22, 1986Date of Patent: September 13, 1988Assignee: Manufacture d'Appareillage Electrique de CahorsInventor: Pierre Bourrieres
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Patent number: 4751610Abstract: A mounting pedestal adapted to support an electrical meter and power box, and other utility service devices, in a compact and safe arrangement for their provision to a mobile home. A hollow, plastic post is supported in an upright position in the earth, and the power box and meter are attached to an L-shaped mounting bracket on the top of the post. The meter, power box and other devices are connected to a common ground, the common ground being at least partly embedded in the plastic post. In one preferred embodiment, the common ground includes a flat plate extending substantially throughout the length of the plastic post and is embedded therein. In a second preferred embodiment, the common ground includes a plurality of conductors extending through the plastic post, the conductors being connected by a common ground wire extending between them, which is disposed interiorly of the post.Type: GrantFiled: June 2, 1986Date of Patent: June 14, 1988Inventor: Anne D. Nickola
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Patent number: 4733020Abstract: An electrically nonconductive utility cable guard for use in protecting electrical riser cables from vandalism and rodent damage. The cable guard is a U-shaped open-ended channel formed of a reinforced synthetic resin material having an overall thickness of from 1/4" to 5/8". Molded to the outer edge of each side portion of the channel are short mounting tabs having apertures therein for mounting the guard to an accommodating surface such as a utility pole. In one embodiment the tabs extend from the side walls at an angle of 105.degree.. The cable guard neatly mates with underground conduit extensions due to a novel footing integrally molded to one end of the channel. The footing uses a plurality of stepped lips extending axially and radially away from the channel to mate with the ends of conduit of various sizes.Type: GrantFiled: May 18, 1987Date of Patent: March 22, 1988Assignee: General Telephone Company of CaliforniaInventor: Carl T. Elzy
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Patent number: 4728749Abstract: Ceramic elements which can be clamped together by means of a tension rod so as to form a cross-arm assembly for a utility pole. The elements are provided with recesses which receive electrical conductors, with clips being provided so as to retain the conductors within the recesses. The elements thus provide physical support for the conductors and also form the insulating medium for the conductors.Type: GrantFiled: April 17, 1986Date of Patent: March 1, 1988Assignee: R.F.D. Consultants Pty. Ltd.Inventor: John K. Knight
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Patent number: 4701577Abstract: A cable support for an electric power-line pole comprises a body of insulating material having a core delimited externally by a substantially rigid shell to which are attached individual cable support brackets. The core is covered with an insulating membrane with interposition of packing material.Type: GrantFiled: May 22, 1986Date of Patent: October 20, 1987Assignee: Manufacture d'Appareillage Electrique de CahorsInventor: Pierre Bourrieres
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Patent number: 4682747Abstract: A cross-arm for supporting electric utility wires. The cross-arm is made of insulative material, the inner structure formed of alternate layers of polyester resins and synthetic fabric. An inner core is composed of polyester resin and particulate matter, or polyurethane foam with a central metal reinforcing bar. The cross-arm is modular in nature, and support members are integral with the unit, facilitating installation.Type: GrantFiled: April 24, 1986Date of Patent: July 28, 1987Inventors: Halm C. King, Jr., Nancy King