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| Number | Title | Issue Date |
| 7977571 | Method and apparatus for provision of temporary conductor tension support in transmission or distribution circuits A conductor supporting assembly includes a pair of yokes having a pair of cables extending therebetween in spaced parallel array. Actuators tension the cables so as to selectively draw the yokes toward each other along the cables. Grips cooperate with yokes for moun... | 07/12/2011 |
| 7057103 | Transmission tower devices for reducing longitudinal shock loads A device for reducing a shock load having a longitudinal direction along a power line coupled through an insulator to a crossarm of a transmission tower, comprising: a rotary damper coupled between the insulator and the crossarm for rotating by the insulator in the ... | 06/06/2006 |
| 6864421 | Sag compensating device for suspended lines A device that automatically compensates for heat-induced sag in a suspended line by using a shape memory alloy actuator. As the actuator it is heated, it contracts, producing a pulling force in the line, and thereby reducing sag. ... | 03/08/2005 |
| 6448493 | Suspension device having a cable carriage integral therewith The present invention relates to a combined cable suspension device and cable carriage. To enable a cable suspension device (1) to be used also as a cable carriage, the suspension device has been provided with a rotatable cable support (2) which can be mo... | 09/10/2002 |
| 6372984 | Conductor galloping control device and method of installation A galloping control rod for suppressing the vertical, torsional and horizontal movement associated with the galloping affect on aerial cables due to freezing rain, wet snow or frost deposits. The anti-galloping rod includes a non-conductive rod having a p... | 04/16/2002 |
| 6245991 | Utility pole guy wire breakaway connector A guy wire breakaway connector for a utility pole will separate when impacted by a vehicle, to avoid damage to the vehicle or the pole, and injury to occupants of the vehicle. A pair of terminal members each has a tapered key with teeth that grip the guy ... | 06/12/2001 |
| 6239362 | Device for compensating variations in the length of tensioned cables, with substantially constant traction A device for compensating length variations of tensioned cables, with a substantially constant tension, including a contrast element, which is meant to be interposed between one end of the tensioned cable and an anchoring element and is adapted to generat... | 05/29/2001 |
| 6222134 | LP insulator assembly and method for assembling the same There are disclosed a method for assembling LP insulators in which no box housing is used, assembling operation is facilitated and various product lengths can be handled, and an LP insulator assembly which is lightweight because of a small amount of packi... | 04/24/2001 |
| 6096971 | Adaptable, overhead line vibration damping/sag adjustment device Adaptable, line vibration damping/sag adjustment devices are provided with hollow regions that facilitate drilling of larger holes in the devices so that the devices can hold and clamp lines having correspondingly large diameters.... | 08/01/2000 |
| 6085008 | Aerial cable and tension clamp assembly An assembly comprising a self supporting aerial cable and tension clamp means including gripping means for gripping the cable, the gripping means comprising at least one helically wound rod fitted over the cable's outer sheath, wherein ##EQU1## ... | 07/04/2000 |
| 6057508 | Sag compensator for suspended lines 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 tem... | 05/02/2000 |
| 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 |
| 5969291 | Overhead-line mast with insulated mast head 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 ... | 10/19/1999 |
| 5898558 | Protective overload device A protective overload device (POD) that absorbs energy and reduces the damage to transmission towers resulting from sudden conductor, shield wire, insulator, or conductor suspension failures is herein disclosed. The POD is positioned between the non-energ... | 04/27/1999 |
| 5792983 | Sag compensator for suspended lines using rotary motion The invention used devices that change in length as a function of temperature to mitigate sag in a suspended line. The devices have actuators which change in length as a function of temperature. This change in length is transferred to a linkage mechanism,... | 08/11/1998 |
| 5623122 | Method and apparatus for service cable disconnection A breakaway connection device is provided which is particularly suited for use with residential electric service cables. This device is mounted between the service cable and the service pole and serves to disconnect the cable from the pole upon the applic... | 04/22/1997 |
| 5315064 | Suspended line breakaway device An improved suspended line cable breakaway device includes a first body portion for connecting to a first end of a support cable and a second body portion for connecting to a second end of the support cable. The first body portion includes resilient finge... | 05/24/1994 |
| 5092663 | Apparatus and method for maintaining slack of fiber optic cable or the like An apparatus for supporting and maintaining slack of fiber optic cable or the like in an aerial installation comprises an elongate channel member having an arcuate section and a plurality of linear sections for receiving the slack and means for securing t... | 03/03/1992 |
| 5073680 | Substation interconnecting electrical cable conductor connecting device A device for facilitating integrity of an electrical interconnection of a pair of electrical suspended conductor cables includes a flexible conductive loop and a tension retainer between the cables. Free adjacent spaced apart ends of the cables are connec... | 12/17/1991 |
| 4695677 | Wire tensioning system A temperature and stretch compensating wire tensioning system. In parallel wire capacitive security systems, the maintenance of proper tension in the sensor wires in essential in order that false alarms be avoided as a result of movement of the sensor wir... | 09/22/1987 |
| 4078771 | Rolling electric fence An elongated strand of electric fence wire is provided with wheels whereby the strand can be rolled from one location to another while remaining stretched out lengthwise. The wheels also serve as posts whereby the strand of wire is held out of contact wit... | 03/14/1978 |
