Patent ID: 6011335
Filing Date: 2000-01-04
Classification: H02K

Abstract:
An enclosure for an electrical device, the enclosure comprising:a tubular wall having an exterior surface and an interior surface, the interior surface surrounding a hollow interior of the enclosure, the interior surface is cylindrical and has a center axis that passes through the center of the hollow interior, the interior surface is spaced a first radial distance from the center axis;front and rear openings at opposite ends of the tubular wall providing access to the hollow interior at the opposite ends of the tubular wall;a hole through the tubular wall between the front and rear openings;a channel formed into the interior surface, the channel intersecting the hole, the channel has a channel surface that is recessed into the interior surface and defines the channel, the channel surface extends radially outwardly from the interior surface and the center axis;a portion of the interior surface extends across a rib in the tubular wall and a portion of the channel surface extends across the rib on an opposite side of the rib from the portion of the interior surface; andthe rib has front and rear edges adjacent the respective front and rear openings of the tubular wall, the front and rear edges separate the portion of the interior surface on the rib from the portion of the channel surface on the rib, and the portion of the channel surface tapers toward the hole in the tubular wall and away from the tubular wall center axis as the portion of the channel surface extends from the front edge of the rib toward the hole in the tubular wall.