Electrical insulation apparatus
First Claim
1. A gland for use with an electrical cable having an outer protective sheath, a cable inner protective wall, and a metallic armoring layer between said sheath and the inner protective wall, said gland comprising:
- a first annular grommet including a plurality of first grommet internal ridges adapted to grip and seal said protective sheath, a second annular grommet of smaller internal diameter than said first grommet and having a plurality of second grommet internal ridges adapted to grip and seal the cable inner protective wall, each of said first and second grommets having a pair of axial annular end plates of steel to which the material of the grommet is molded, the first and second grommets being adapted for location therebetween of cable armoring, the grommet steel end plates adapted to be disposed in contact with said armoring being notched for secure gripping of said armoring;
a solid cylindrical moisture impervious cast metal outer body within which said grommets are secured and including an annular skirt depending from said cast metal outer body, said second grommet being located against the annular skirt; and
a grommet pressure plate located against the steel axial end plate of the first grommet remote from said annular skirt, and means for securing the pressure plate against said first grommet and to force said grommets into contact either with each other or with said cable armoring.
1 Assignment
0 Petitions
Accused Products
Abstract
Electrical insulation apparatus namely a water resistant gland for the protected connection at an electrical cable. The gland is shaped for location around an electrical cable and includes a moisture impervious outer body and a pair of annular grommets located within the outer body. The grommets are arranged to contact and surround the cable. The grommets are of resilient material such as neoprene and include steel plates of annular construction located at either end of the neoprene body. A mechanism is provided to force the grommets into contact either with each other or with a cable protective armoring portion located between the grommets.
13 Citations
9 Claims
-
1. A gland for use with an electrical cable having an outer protective sheath, a cable inner protective wall, and a metallic armoring layer between said sheath and the inner protective wall, said gland comprising:
-
a first annular grommet including a plurality of first grommet internal ridges adapted to grip and seal said protective sheath, a second annular grommet of smaller internal diameter than said first grommet and having a plurality of second grommet internal ridges adapted to grip and seal the cable inner protective wall, each of said first and second grommets having a pair of axial annular end plates of steel to which the material of the grommet is molded, the first and second grommets being adapted for location therebetween of cable armoring, the grommet steel end plates adapted to be disposed in contact with said armoring being notched for secure gripping of said armoring; a solid cylindrical moisture impervious cast metal outer body within which said grommets are secured and including an annular skirt depending from said cast metal outer body, said second grommet being located against the annular skirt; and a grommet pressure plate located against the steel axial end plate of the first grommet remote from said annular skirt, and means for securing the pressure plate against said first grommet and to force said grommets into contact either with each other or with said cable armoring. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
Specification