Abstract: Electrical termination and connector structures for electrical cable, and a penetrator for electrical power and/or signals through a pressure barrier, provide, in different embodiments, mechanical attachment to the cable and to individual conductors of a multi-conductor cable; and provide fluid-tight seals to protect the terminated and interconnected conductors from adverse ambient gases and liquids. A molded elastomeric body, in one embodiment, provides the rugged fluid-tight seals. The electrical termination and connector structures withstand cycled pressure and temperature environments, and include a mechanism for restraining the extrusion or other displacement of cable insulation under conditions of cycled pressure and of temperature. The structures also accommodate axially adjustable installation and differential axial expansion and contraction.
Type:
Grant
Filed:
February 1, 1995
Date of Patent:
September 23, 1997
Assignee:
D.G. O'Brien, Inc.
Inventors:
C. B. Lawer, David E. Dunfee, Harold P. Hilberg, Philip S. Amato, Jr.
Abstract: Electrical termination and connector structures for electrical cable, and a penetrator for electrical power and/or signals through a pressure barrier, provide, in different embodiments, mechanical attachment to the cable and to individual conductors of a multi-conductor cable; and provide fluid-tight seals to protect the terminated and interconnected conductors from adverse ambient gases and liquids. A molded elastomeric body, in one embodiment, provides the rugged fluid-tight seals. The electrical termination and connector structures withstand cycled pressure and temperature environments, and include a mechanism for restraining the extrusion or other displacement of cable insulation under conditions of cycled pressure and of temperature. The structures also accommodate axially adjustable installation and differential axial expansion and contraction.
Type:
Grant
Filed:
February 3, 1994
Date of Patent:
December 26, 1995
Assignee:
D. G. O'Brien, Inc.
Inventors:
C. B. Lawler, David E. Dunfee, Harold P. Hilberg, Philip S. Amato, Jr.
Abstract: Communication cable includes an optical fiber, a first tubular electrical conductor enclosing the optical fiber, a second tubular electrical conductor enclosing the first electrical conductor, and a dielectric support element disposed between the conductors for maintaining the conductors in a coaxial relationship, with a selected uniform electrical impedance therebetween. Connectors for coupling such cable include plug and receptacle modules for connecting respective electrical and optical elements in the cable.
Abstract: Marine electrical cable apparatus has a flexible cable jacket loosely containing cable conductors and filled with a relatively incompressible fluid such as oil. The jacket flexes with changes in the environmental pressure to transmit that pressure to the inner fluid and thereby maintain minimal pressure differential across the jacket walls. Terminations at each end of the cable seal the jacket interior from the environment and feed the cable conductors from within the jacket out for connection with further electrical equipment.