Abstract: An end cap boot has two end cap covers, each having a back wall, a side wall, and an interior pocket extending the length of the back wall and the width of the side wall. The end cap covers are configured to overlay one another, with the distal end of a neon lamp located therebetween, such that the pockets of the end cap covers fully encapsulates the distal end of the neon lamp. The method includes the injection of a glue material through one of the end cap covers, ensuring that the glue material completely fills the interior pockets surrounding the distal end of the lamp, thereby providing a permanent, waterproof seal at the end of the lamp. The end cap boot can be used both for fully enclosing a neon lamp or for enclosing the distal end of a lamp with extending electrical wiring.

Abstract: An open coil electrical resistance heater employs an insulator having a coil convolution engaging portion that is adapted to engage heater coils with small diameters, small wire diameters, and/or small pitches without distorting the coil and compromising heater performance.

Abstract: An insulator has been invented for use between adjacent portions of wire coils of a helical heater wire, the insulator, in one aspect, having a body member with a front, a rear, a first side, a second side, a top, and a bottom, a first groove formed in the front of the body member and extending from the first side to the second side, the first groove for receiving and holding a first portion of a first wire coil. In certain aspects the insulator also has a second groove formed in the rear of the body member spaced apart from the opposite the first groove, the second groove extending from the first side to the second side, the second groove for receiving and holding a portion of a second wire coil adjacent to and spaced apart from the first wire coil. In one aspect the first and second grooves are at a top of the body member and another pair of such grooves are at the bottom of the body member. A heater element has been invented with such an insulator and a heater has been developed with such a heater element.