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| Number | Title | Issue Date |
| 7301096 | Insulator for energized terminal of electrical device An electrical apparatus of an electric distribution power system includes an electrical device having a high voltage electrical terminal that may be energized, an exterior insulating housing, and an insulator. The exterior insulating housing surrounds and insulates ... | 11/27/2007 |
| 7262367 | High voltage bushing with field control material The invention pertains to a dielectric bushing (1′), in particular a high-voltage bushing (1′) for an electrical high-voltage apparatus. To realize the field control in the field-stressed zone (7; 7a, 7b), at least one s... | 08/28/2007 |
| 7134804 | Bollard and accessories for use therewith A bollard having a plurality of parallel, vertical legs spaced apart from each other on the perimeter of a regular geometric shape. The minimum number and/or cross-section of the legs is governed by the need to avoid creating an entrapment area between adjacent legs... | 11/14/2006 |
| 7118299 | Reinforcing bar connection and method A high strength reinforcing bar splice uses a contractible jaw assembly bridging the bar ends to be joined. The jaw assembly includes interior teeth designed to bite into the projecting ribs or deformations on the outside of the bar ends which form the overall diame... | 10/10/2006 |
| 7041913 | Method and arrangement for providing a gas-tight housing joint A method and arrangement is provided to form a gas-tight joint between an end flange and a tubular rod. The joint is formed via a heat-shrink process to provide an interference fit. The rod is provided with grooves to retain adhesive during the assembly process.... | 05/09/2006 |
| 6833507 | Magnetic cord retainer A cord retainer having a first portion containing a first magnet, the first portion attachable to the cord; and a second portion containing either a second magnet or a ferrous member, the second portion attachable to the cord or having an adhesive surface for attach... | 12/21/2004 |
| 6759595 | Outdoor termination for a high voltage cable The present invention relates to an outdoor termination for a high voltage cable, comprising an insulator body for receiving the high voltage cable; a filling compound provided within the insulator body and filling at least a portion of the space between the insulat... | 07/06/2004 |
| 6737587 | Cable sealing end The invention relates to an outdoor sealing end (8) which is elevated on one side. Means (18) for fixing the cable (10) are designed on the base fittings (20). An electric duct (32) is situated inside the sealing end. Additional, c... | 05/18/2004 |
| 6657128 | Hydrophobic properties of polymer housings A housing for an electrical apparatus includes a sheath, at least one shed and a hydrophobic coating. The sheath includes a first electrically insulative material and an outer surface. The at least one shed includes a second electrically insulative materi... | 12/02/2003 |
| 6576846 | Two-layered elastic tubular covering for electric components, in particular terminations for electric cables, and related manufacturing method and mounting A tubular elastic covering (730) for electric components (700), having on the whole predetermined values of mechanical and electric/environmental requirements, in which the mechanical requirements include expandibility and elastic recovery in a radial dir... | 06/10/2003 |
| 6501029 | High-voltage homogeneous co-curing composite insulator A high-voltage homogeneous co-curing composite insulator includes first and second end fittings longitudinally separated by a spacer, a resin impregnated fiber core wound onto the end fittings and onto the spacer, and an outer sheath moulded onto the fibe... | 12/31/2002 |
| 6441310 | Moisture activated barrier for electrical assemblies An assembly is provided having a core and a housing. The housing has an internal passageway extending from a first housing end to a second housing end for receiving the core. A coating of an uncured moisture activated material is disposed between the hous... | 08/27/2002 |
| 6384338 | Composite electrical insulator A composite insulator is provided. At least one metal end fitting is provided having a sleeve portion which defines a bore with a first diameter, d1. An insulator subassembly is then formed. The insulator subassembly includes a rod of electrically insulat... | 05/07/2002 |
| 6342679 | Two-layered elastic tubular covering for electric components A tubular elastic covering for electric components is provided to obtain predetermined values of mechanical and electric/environmental requirements. The mechanical requirements include expandibility and elastic recovery in a radial direction. The electric... | 01/29/2002 |
| 6307157 | Composite insulators and a process for producing the same A composite insulator includes an insulating rod, end fittings crimped to opposite end portions of said insulating rod, and an elastic insulating material molded around the outer periphery of the insulating rod, wherein each of the end fittings has a flan... | 10/23/2001 |
| 6225567 | Polymeric weathershed surge arrester and method An elastomeric surge arrester housing includes a sleeve having a tubular core and radiating sheds. The sleeve is molded in a first configuration and, when the core is radially stretched, assumes a second configuration in which the sheds assume a downwardl... | 05/01/2001 |
| 6218626 | Insulator for electric transmission and distribution lines, with improved resistance to flexural stresses A hollow insulator for electric transmission and/or distribution lines including an insulating hollow tube made of composite material which is coupled, at least at an end portion thereof, to a metal flange which has a portion adapted to be inserted into t... | 04/17/2001 |
| 6215075 | Composite insulator A weathershed for use in a composite insulator includes a molded polymer body. The body configuration is such that the leakage distance across the weathershed is increased, while at the same time the amount of material needed is reduced. This provides a l... | 04/10/2001 |
| 6064010 | Composite insulator end fitting An end fitting having a bore that forms a sleeve for the shank of an electrical insulator of composite structure. The bore has a substantially frustoconical wall that flares away from the bore opening towards the end wall of the bore and has an annular sw... | 05/16/2000 |
| 6051796 | Electric insulator made from silicone rubber for high-voltage applications An electric high-voltage insulator made from plastic comprises at least one glass fiber rod (1), at least one shield covering (2) made from silicone rubber which surrounds the glass fiber rod (1) and has concentric bulges (3) arranged along the longitudin... | 04/18/2000 |
| 6034330 | Load insulator A load insulator having an elongated, load bearing, electrically insulating body extending between and coupled to opposite metal lugs, for coupling the load insulator in a loaded line, has an electrically insulating cover formed on the outside of the body... | 03/07/2000 |
| 6031186 | Solid polymer insulators with eye and clevis ends An insulator in the form of suspension insulator or pin type insulator has an elongated load sustaining body with a plurality of weathersheds extending radially relative to the longitudinal axis of the body on the outer surface of the body. The body and w... | 02/29/2000 |
| 5981878 | Polymer insulators with metal caps An electrical insulator for supporting an electrical conductor includes a load sustaining molded core, a mounting on the core, an dielectric sheath, and a metal cap. The molded core is formed of a dielectric polymer with opposite longitudinal ends and a p... | 11/09/1999 |
| 5977487 | High voltage insulator of ceramic material having shrink-fit cap and method of making The invention relates to a high voltage insulator of ceramic material, which includes a longitudinal shank having molded sheds and to whose ends of the shank metal caps are shrink-fitted. The ends of the longitudinal shank are enlarged so that the diamete... | 11/02/1999 |
| 5945636 | Electrical insulators with mechanical core and dielectric sheath An electrical insulator in the form of a pintype insulator has a load sustaining mechanical core and a dielectric sheath overlying the mechanical core to protect the mechanical core from the weather. The mechanical core is constructed of a load sustaining... | 08/31/1999 |
| 5695841 | Molding methods, track resistant silicone elastomer compositions, and improved molded parts with better arcing, flashover, and pollution resistance The invention provides for a method of molding an elastomeric material which avoids longitudinal mold lines and an improved molding composition as well as molded parts for hybrid insulators and the like.... | 12/09/1997 |
| 5623126 | Ceramic terminal assembly A terminal assembly is provided which is easy to assemble and disassemble. The assembly features male and female ceramic elements that interconnect and provide a passageway into which a terminal equipped with forward and rearward tabs is placed. After the... | 04/22/1997 |
| 5569885 | Insulated link An insulated link using new castable insulating materials and interim molds. A strong, insulating cast dielectric is assembled with metal plates to form a core assembly. A low viscosity bonding compound introduced into the core prior to casting an outer d... | 10/29/1996 |
| 5540991 | Composite insulator and its manufacturing method A composite insulator includes a FRP core rod and a sheath which is formed by integrally molding an insulating polymeric material to cover the core rod over substantially the entire length thereof. The sheath is composed of a plurality of molded portions ... | 07/30/1996 |
| 5406033 | Insulator structure and method of construction A composite link and insulator, and method of construction, includes a fiberglass body. The body is formed by coating glass fibers with a liquid resin and winding the fibers around a plurality of tubular fittings or bushings in two layers, a first extendi... | 04/11/1995 |
| 5387448 | Explosion-proof porcelain housings for gas-filled insulating apparatuses An explosion-proof porcelain housing for a gas-filled insulating apparatus includes a hollow porcelain housing body having a tapered inner surface, and a resin lined on the inner surface of the porcelain housing body. The thickness of the resin lining dec... | 02/07/1995 |
| 5374780 | Composite insulator structure and method of construction A composite link and insulator, and method of construction, includes a fiberglass body. The body is formed by coating glass fibers with a liquid resin and winding the fibers around a plurality of tubular fittings or bushings in two layers, a first extendi... | 12/20/1994 |
| 5336852 | Electrical assembly with end collars for coupling ends of a weathershed housing to the end fittings An electrical assembly, such as an insulator or a surge arrester, utilizing a pair of end collars for coupling an elastomeric weathershed housing to a pair of metallic end fittings, and for reducing electrical stress at the interface of the ends of the we... | 08/09/1994 |
| 5220134 | Composite insulator and method for its manufacture An insulator of the type composed of a core onto which a skirt made of insulating material and provided with fins is molded. The core comprises an axial rod of a composite material onto whose ends the end sleeves of mounting terminals are swaged. The rod ... | 06/15/1993 |
| 5214249 | Electrical assembly with end collars for coupling ends of a weathershed housing to the end fittings An electrical assembly, such as an insulator or a surge arrester, utilizing a pair of end collars for coupling an elastomeric weathershed housing to a pair of metallic end fittings, and for reducing electrical stress at the interface of the ends of the we... | 05/25/1993 |
| 5043838 | Modular electrical assemblies with pressure relief A modular electrical assembly is enclosed in an elastomeric weathershed housing, and has a plurality of electrical components aligned in a row and in electrical connection with one another via their axially-directed ends and under an axially-directed comp... | 08/27/1991 |
| 4958049 | Elongated electrically insulating support structure and relevant preparation method An elongated electrically insulating support structure, for use by itself as an electrical insulator or for use as a strength member in a composite electrical insulator made of fiberglass-reinforced resin, comprising a central cylindrical body and ends ha... | 09/18/1990 |
| 4905118 | Base mounted electrical assembly A modular electrical assembly is enclosed in an elastomeric weathershed housing, and has a plurality of electrical components aligned in a row with terminals at the row ends. The electrical components and the terminals are in electrical connection with on... | 02/27/1990 |
| 4883930 | Switch mechanism operating rod A switch apparatus comprising a switch mechanism including a first contact, and a second contact movable into and out of engagement with the first contact for respectively closing and opening the switch mechanism, an operating rod assembly connected to th... | 11/28/1989 |
| 4845318 | Composite electrical insulator and method of forming same The invention provides an electrical insulator comprising a cylindrical core (2) of an insulating refractory material, such as porcelain, onto a portion of the curved surface of which a sleeve (8) of insulating polymeric material is fitted. Metal end-caps... | 07/04/1989 |
