Minnesota Mining and Manufacturing Company

Manuel Filreis

Mark D Sorlien

William J Seim

Telecommunication service wire connector

A telecommunication service wire shield connector stamped and formed from a sheet of metal and having a generally planar elongate base, a ground stud connection tongue extending from one end of the base, a strain relief adjacent the opposite end of the base and having teeth inclined toward the base for engaging the service wire sheath, and a shield connector between the connection tongue and the strain relief and having small teeth inclined toward the base for scraping the service wire shield upon insertion and making electrical connection to the shield.

A shield connector is provided for use with a telephone cable having a central core of individual conductors, a metallic sheath surrounding the central core, and a polymeric sheath encapsulating the shield which offers high initial contact force, a long travel in spring action, and resistance to high amperage currents. The connector includes an inner shoe inserted between the shield and the core conductors, an outer shoe overlying the cable sheath and clampingly engaged with the inner shoe by means of a threaded stud interconnecting the inner and outer shoes through a slit provided in the shield and the sheath, and a tang extending from one of the inner or outer shoes to contact the other of the inner or outer shoes exteriorly of the shield and the sheath. The inner shoe includes sloped transverse sides which interact with pointed, sheath-piercing prongs provided on the outer shoe to force the prongs outwardly and to increase the curvature of the inner shoe upon clamping engagement of the inner and outer shoes to store energy in the shoes and compensate for cold flow of the sheath and shield disposed between the shoes.

Cable shield connector

Re-enterable service wire splice closure having a shallow cup containing a sealant into which is placed an inverted cylindrical shallow tray containing the spliced ends of the service wire, the cup and the tray have aligned slots through which the cable may extend and a screw cap drives the tray into the cup forcing the sealant around the wire splice connectors to encapsulate the same for moisture resistance. A connector element in the tray serves as the strain relief element for the service wire and as the connector element for the grounding shield.

Growing community of inventors

Edina, MN, United States of America

Manuel Filreis