Abstract: The invention relates to an insulator for an electrical conductor provided with an outer shield, especially a so-called coaxial cable or shielded twin cable, in order to achieve an insulation at the shield that insulates against DC and low frequency AC signals transforming through the conductor and that includes a first and a second element (3,4) formed from electrically conducting material that by means of a dielectric (5) are electrically insulated and delineated from one another. and that are intended to be connected between an interruption at the shield or between the shield and an external earth connection.
Abstract: 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 pin therethrough and a cutout or removed portion positioned between the mounting hole and the mounting sleeve for optimizing the weight of the end fitting. The mounting hole can optionally be provided with a pair of contacting points spaced laterally relative to the vector line of force to redirect the tensile load applied to the end fitting by a mounting pin located in the mounting hole. The end fitting is especially useful in insulators subjected to tensile loads.
Abstract: A terminal pin seal for an hermetic terminal assembly including at least two laminations one of which has the inner surface adjacent the assembly structure with electrochemical properties resistant to attack from chemical ingredients within the assembly and another of which laminations has the outer surface adjacent to ambient with electrochemical properties different from that lamination facing the assembly housing to produce a greater resistance to chemical attack from ambient.
Type:
Grant
Filed:
April 18, 1988
Date of Patent:
May 23, 1989
Assignee:
Emerson Electric Co.
Inventors:
Richard L. Teaford, Glenn A. Honkomp, Donald H. Hall
Abstract: A ship deck lifeline has an insulator fitting interposed between the metal able and the metal end stanchion. The lifeline cable is insulated from the metal ship deck thereby reducing electrical interference with the ship's electronic instrumentation. The insulator fitting is designed to be easily retrofit to existing lifelines.
Type:
Grant
Filed:
February 6, 1984
Date of Patent:
October 15, 1985
Assignee:
The United States of America as represented by the Secretary of the Navy
Inventors:
Russell I. Coles, Norman J. Griest, Raoul J. Marando, Aaron A. Suleske
Abstract: A ball bearing swivel comprises a substantially bowl-shaped casing member having first connection means in its closed end, and a stud member having second connection means in that one of its ends which faces away from the casing member. The stud member is journalled in the bowl-shaped housing member by means of a ball or roller bearing. For eliminating the risk of accidents through one of the wires or the like to which the swivel is connected, if the other wire or the like which is connected to the swivel should get into contact with an electrical overhead line or another possibly high-tensioned object, the ball bearing swivel also comprises an electrically insulating insert by means of which the bowl-shaped casing member of the ball bearing swivel is electrically insulated from the stud member.