Abstract: A one piece connector is provided for coupling a flexible conduit to junction boxes having different wall thicknesses. The connector includes a bottom defining an aperture for passing electrical conductor therethrough. The connector further includes a sidewall extending upwardly from the bottom, and a member projecting inwardly from the sidewall for engaging the flexible conduit. The connector also includes a locking tab member having an outwardly extending tab, an outwardly angled locking protrusion, and a locking arm having an outwardly angled region and an inwardly angled region for retaining the connector within an opening in a junction box.

Abstract: A right angle connector for connecting conduit to a junction box having an opening therein. The connector includes a base and a cap. The base may include a tab for establishing a snap fit connection with the cap. According to another aspect of the invention, the base may include a plurality of spring members for resiliently retaining the conduit at approximately a right angle to the opening in the junction box. According to another aspect of the invention, the base may include a plurality of resiliently deformable elements configured to establish a snap fit connection with the opening in the junction box. The deformable elements may extend from an annular bottom portion of the base defining an opening through which wires in the conduit may pass to enter the junction box.

Abstract: A method of forming an extended surface heat transfer fin by differentially rolling a metal strip having a wedge-shaped profile. The method includes linearly stretching the thicker edge of the metal strip to a greater degree than the thinner edge.

Abstract: A one-piece, flexible conduit connector for connecting an electrical conduit having a helically grooved outer metal sheath to an electrical junction box, the connector being generally cylindrical to conform roughly with the sheath of the conduit and having a central opening through which insulated wires extend from said conduit, an anti-short flange being formed by hemming the central opening, inwardly projecting barbs being formed on the walls of the connector to engage the conduit and the outer diameter of the connector being of appropriate size for insertion into the junction box wall opening.

Abstract: A connector for joining flexible electrical conduit to a housing such as a junction box, fixture or the like which is formed cylindrically from light metal and includes relatively flexible arms depending from a relatively stiff face portion, retaining members flaring from and extending for a substantial portion of the length of the flexible arms. Multiple barbs are formed on the flexible arms to engage the conduit and flanges are formed at the extremity of the flexible arms to coopperate with the retaining members to clamp the connector to the housing.