Cable gland with pressure dome tightening mechanisms and method for earthing a cable
A cable gland and method for earthing, bonding, and electromagnetic capability with armored, metal-clad, and metallic-sheathed cable types. The cable gland includes compressible fingers with the ability to compress or expand about a cable inserted in and through the cable gland, and an adjustable earthing coil arranged internally inside a part of the cable gland that secures around a cable inserted in the cable gland. When fully coiled, the adjustable earthing coil is relaxed and as the adjustable earthing coil is expanded it generates a restoring force. An earthing strap attached to the adjustable earthing coil in the cable gland, provides grounding capabilities to the cable gland.
1. A cable gland comprising:
a gland body;
an outer housing having at least one or more apertures configured to connect to one end of the gland body;
a constant force spring held internally to the gland body;
wherein the gland body comprises:
a sealing connector disposed in the gland body;
a tapered area that is configured to fit in the at least one or more apertures of the outer housing; and
a body tightening mechanism adjacent to the tapered area on the gland body; and
wherein the outer housing, once connected to the gland body, and tightened on the body tightening mechanism on the gland body, is configured to compress the tapered area, allowing the sealing connector to tighten around a cable.
2. The cable gland of claim 1 , wherein the gland body includes a substrate connection mechanism and further comprises a washer arranged externally relative to the substrate connection mechanism on the gland body.
3. The cable gland of claim 1 , wherein the constant force spring extending outside the gland body for earthing a cable held by the cable gland.
4. The cable gland of claim 3 , wherein the constant force spring comprised of a rectangular flat piece of material wound in a circular shape inside the perimeter of a cylindrical insert, each coil wrapping around the previous coil forming a flat curled ribbon, with an end of the coil forming a slight bend in the opposite direction the coil is curled in.
5. The cable gland of claim 4 wherein the constant force spring is held by lodging the bend at the end of the constant force spring into at least one or more grooves in the gland body.
6. The cable gland of claim 4 wherein the constant force spring is held by fitting the constant force spring into a circular ledge around the inside perimeter of the gland body.
7. The cable gland of claim 1 , wherein the tapered area on the gland body further comprises a plurality of compressible and expandable finger-gaps.
8. The cable gland of claim 1 , wherein the outer housing further comprises an outer housing tightening mechanism that allows it to connect to the body tightening mechanism and tighten around the body tightening mechanism.
9. The cable gland of claim 8 , wherein the outer housing tightening mechanism is a set of helical threads disposed internally in the outer housing.
10. The cable gland of claim 1 , wherein the cable gland comprises a non-metallic material.
11. A cable gland comprising:
a gland body;
an outer housing having at least one or more apertures configured to connect to one end of the gland body;
a constant force spring held internally to the gland body;
wherein the gland body comprises:
a sealing connector disposed in the gland body;
a tapered area that is configured to fit in the at least one or more apertures of the outer housing; and
a body tightening mechanism adjacent to the tapered area on the gland body;
wherein the tapered area on the gland body further comprises compressible and expandable finger-gaps; and
wherein the outer housing, once connected to the gland body, and tightened on the body tightening mechanism on the gland body, is configured to compress the tapered area, allowing the sealing connector to tighten around a cable.
12. The cable gland of claim 11 , wherein a washer is configured to be arranged externally on the gland body.
13. The cable gland of claim 11 , wherein the outer housing further comprises an outer housing tightening mechanism that allows it to connect to the body tightening mechanism and tighten around the body tightening mechanism.
14. The cable gland of claim 13 , wherein the outer housing tightening mechanism is a set of helical threads disposed internally in the outer housing.
15. The cable gland of claim 11 , wherein the cable gland comprises a non-metallic material.