Mineral insulated metal sheathed cable connector and method of forming the connector
AssigneeAccuTru International Corporation
InventorsDaniel A. Barberree, Jose E. Cardenas, Lee Transier, Rick Zerafin
Life of this patent
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Abstract
A connection for a mineral insulated metal sheathed cable, wherein the connection employs a compression fitting. The connection may make up two or more mineral insulated metal sheathed cables wherein one or more of the cables may be secured with a compression fitting. The connection may splice together two individual cables, or a cable to an electrical element.
Claims25
A splice assembly for a mineral insulated metal sheathed cable comprising:
- a cable assembly comprising a first conducting element and mineral insulation disposed on the first conducting element;
- a connection between the first conducting element with a second conducting element;
- an annular sleeve around the cable assembly, the sleeve having an outer radius that increases along its length to define an inclined surface;
- and
- a compression fitting slideable from a non-compressive position along the annular sleeve in a direction of increased radius to a compressive position, so that when the compression fitting is in the compressive position the inclined surface is inwardly deformed to provide an inward compressive force onto the cable assembly.
A method of forming a spliced connection between first and second electrically conducting elements respectively from first and second cable assemblies each having a mineral insulated metal sheath over the elements, the method comprising:
- providing an annular sleeve with a portion having an outer radius that increases along the sleeve length and an annular swage ring slideable over the annular sleeve;
- sliding the annular sleeve onto one of the cable assemblies;
- forming a connection between the first and second electrically conducting elements;
- positioning the sleeve over the connection;
- and
- sliding the swage ring from a non-compressive position along the sleeve in a direction of increasing sleeve radius to inwardly deform the sleeve and compressively affix the sleeve to the mineral insulated metal sheathed cable assembly.
An apparatus for splicing a mineral insulated metal sheathed cable assembly comprising:
- an annular coupling body comprising a sleeve having an outer surface and an inclined portion on the outer surface;
- a connection formed by joining a first electrically conducting wire and a second electrically conducting wire, wherein the connection is disposed within the body;
- mineral insulation disposed on the first electrically conducting wire and a sheath on the insulation thereby forming a cable assembly, wherein at least a portion of the cable assembly extends into the body;
- and
- a swage member slidingly positioned on the inclined portion of the sleeve outer surface inwardly deforming the sleeve into compressive engagement with the cable assembly and affixing the cable assembly within.
Dependencies are inferred from the claim text.