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| Number | Title | Issue Date |
| 7065924 | Downpipe connector system A downpipe connector system is disclosed. The system having a downpipe connector for attachment to a channel in a canale. The connector has a first portion with an upstanding wall and a floor from which the floor extends. A tubular extension projects from the floor ... | 06/27/2006 |
| 6613985 | Suspension insulator A suspension insulator having a shed including an upper surface and an under surface has a pin fitting arranged at its center portion and projected from the under surface and a plurality of circular ribs arranged around the pin fitting in a concentric man... | 09/02/2003 |
| 5475186 | End fitting with optimized stress distribution An end fitting with stress distribution for supporting an end of a device, such as an insulator, placed tension. The end fitting has a mounting hole for receiving a cylindrical mounting pin therethrough. The mounting hole has a pair of contacting points s... | 12/12/1995 |
| 5448019 | Weight optimized end fitting An end fitting with optimized weight for supporting an end of a device, such as an insulator, placed under tension. The end fitting has a mounting sleeve for coupling the end fitting to a core member, a mounting hole for receiving a cylindrical mounting p... | 09/05/1995 |
| 5281768 | Suspension-type line arrester An insulator for use in a suspension-type line arrester that supports a transmission line is disclosed. Such line arresters have a plurality of insulators connected in a string. The insulators have linking members configured to prevent relative rotation b... | 01/25/1994 |
| 5147984 | Cap and pin insulator An insulator member comprises a porcelain insulator head and a polymeric shed secured to the insulator head. The insulator member can be used, for example, in an improved electrical line insulator which comprises a) an insulator unit comprising a porcelai... | 09/15/1992 |
| 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 |
| 4814551 | Anticorrosive insulator The disclosed anticorrosive insulator has an insulator body with a shed radially extending from a central core thereof and a metal cap cemented to the core of the insulator body so as to cover the core. A gap of 2-10 mm is provided between the lower end o... | 03/21/1989 |
| 4803311 | Suspension insulator A suspension insulator having a porcelain insulating member with a head portion and a shed, a metal cap cemented to the top of the head portion, and a metal pin cemented to the lower end of the head portion at a pin hole formed in the head portion. The pi... | 02/07/1989 |
| 4792647 | Suspension insulator 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 c... | 12/20/1988 |
| 4782199 | Insulators having improved steep wave front characteristics 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 SiO2 | 11/01/1988 |
| 4782198 | Suspension insulators A suspension insulator includes a compressive strain of more than 60×10-6 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... | 11/01/1988 |
| 4689445 | Porcelain electrical insulator resistant to destruction by projectiles A porcelain electrical insulator resistant to destruction by projectiles comprises a shed and a head portion protrusively and integrally formed with the shed. The thinnest part of the shed is not less than 5 mm, and the thickness of the head portion which... | 08/25/1987 |
| 4670624 | Electrical suspension insulator having corrosion protective device for insulator cap thereof An electrical insulator (1) of the type comprising at least one dielectric (2) and an iron or steel cap (3) fixed axially on the dielectric has a device for protecting the cap against corrosion as well as electric arcs. In one embodiment (FIGS. 1-3), the ... | 06/02/1987 |
| 4658092 | Explosion-preventing suspension insulator An explosion-preventing suspension insulator includes an insulator body and a metal cap and a metal pin both being bonded to the insulator body by means of cement. A synthetic resin based electrical insulating film having a Young's modulus of elasticity o... | 04/14/1987 |
| 4559414 | Electrolytic corrosion resistant insulator An electrolytic corrosion resistant insulator includes an insulator body having a cavity therein and a metallic pin having a portion located within the cavity and secured therein by cement. A sacrificial anode surrounds the pin at an intermediate portion ... | 12/17/1985 |
| 4551578 | Ball and socket type suspension insulator A ball and socket type suspension insulator, wherein the radius of curvature at the fillet portion between the shank portion and a ball portion of a ball pin buried and secured into the inside of a head portion of an insulator body is designed at 30-40% o... | 11/05/1985 |
| 4514591 | Glaze to pin connection for a high voltage direct current insulator with embedded metal fitting This disclosure teaches a direct current electrical insulator with improved glaze to pin electrical connection. A suitably contoured porcelain insulator shell is coated with a conventional non-conductive glaze and has a metal cap and a metal pin each situ... | 04/30/1985 |
| 4443659 | Glaze to pin connection for an electrical insulator with embedded metal fitting This disclosure teaches an electrical insulator with improved glaze to pin electrical connection. A suitably contoured porcelain insulator shell is coated with a semiconductive glaze and has a metal cap and a metal pin each situated at a surface of the in... | 04/17/1984 |
| 4406918 | Tempered glass dielectric member for an electrical insulator, and an insulator using said member The member is in the form of a hollow body having a skirt (2) surmounted by a head (1), the entire body exhibiting circular symmetry about an axis (10). The hollow body has an internal ring (5) at an intermediate level between the head and the skirt. The ... | 09/27/1983 |
| 4396798 | High tensile strength suspension insulators with multi-step embedded pins The suspension insulator of the present invention has an improved shape of the embedding portion of a metal pin, which is an embedding multi-step portion constructed with an inverted spherical convex trapezoid upper expanded portion having a larger surfac... | 08/02/1983 |
| 4140871 | Suspension insulators A suspension insulator having an improved direct current withstand voltage against contamination is provided. The insulator can be obtained by limiting both of the ratio of the surface leakage distance to the shed diameter, and the rib factor to specifica... | 02/20/1979 |
| 4114676 | Method for fixing a metallic armature on a non-metallic part Method for fixing a connecting cap (4) on a non-metallic part (1) by molding of the metal or alloy of the connecting cap in the melted state on the outer surface of the non-metallic part. One or several metallic parts closely applied more particularly a s... | 09/19/1978 |
| 4103103 | Electrical insulators having semi-conducting glaze and conductive Portland cement containing a specified amount of carbon black An electrical insulator having a semi-conducting glaze, in which the region between an insulating body whose surface is coated with a semi-conducting glaze, and metal fittings, is filled with a conductive cement composition. The conductive cement composit... | 07/25/1978 |
| 3957560 | Method of cementing together the cap, body, and stem of electrical insulators Method of cementing together the cap, body and stem portions of electrical insulators, comprising introducing measured quantities of water and cement into the cavities of the cap and body, mixing the ingredients within the cavities and immediately assembl... | 05/18/1976 |
| 3941918 | Electrical insulator including an insulation shell having hardware members secured thereto by cement containing graphite fibers A cement for mechanically and electrically joining metal hardware to an insulator shell having a semiconducting surface is made conductive by having graphite fibres and carbon black particles admixed therein.... | 03/02/1976 |
