A seal housing for an electrical device comprises a base, a cover adapted to cover an inwardly facing side of the base to form a closed chamber for accommodating components of the electrical device, and a sealing plate adapted to partially cover an outwardly facing side of the base. The sealing plate has an outward side with a profile that is shaped to divert fluid or fluid condensate formed at the outward side of the sealing plate.

An elastomeric switch cover configured for use on automotive switch panels and a method of use is described in this application. The elastomeric switch cover prevents the intrusion of water or moisture from damaging door mounted switches in vehicles. The switch cover can easily be fitted and removed or peeled back to provide access to the protected switch panel.

A method for fabricating a keyboard covering film is provided. The method includes steps of: coating a transparent plastic material on an upper surface of a fabric layer before the transparent plastic material is cured; treating the fabric layer and the transparent plastic material by a hot press process to cure the transparent plastic material to form a transparent layer and to make the transparent layer and the fabric layer jointly form a number of keycap receiving sections; forming a mask layer on a lower surface of the fabric layer; removing a portion of the mask layer and a portion of the fabric layer located within each of the keycap receiving sections to form a number of hollow patterns.

A push switch includes a case having a containable portion defined by a bottom plate and a wall portion, a central contact provided on the bottom plate, an outer contact provided on the bottom plate so as to be spaced from the central contact in the containable portion, a movable contact disposed above the central contact and the outer contact, a cover film disposed so as to cover the containable portion, and a disc-shaped pressing member provided between the movable contact and the cover film. By pressing the pressing member downward, the movable contact is displaced from a first position to a second position. A diameter R of the pressing member is in the range of 30 to 45% of the width in the longer side direction of the movable contact and in the range of 45 to 60% of the width in the shorter side direction of the movable contact in a plan view.

In one embodiment, a fuse cutout cover has an integral roof portion. The roof portion covers the energized top of a fuse in a first type of cutout. An attachable roof extension covers the energized top of a fuse in a larger second type of cutout, such as a Fault Tamer™ cutout. By adding the roof extension, the same cover may be used with two types of cutouts, and there is not a large gap over the fuse, preventing wildlife from entering the gap. In another embodiment, a second roof is formed over the first roof portion to accommodate different types of cutouts. Electrical insulation between wildlife and the energized cutout is also increased.

In one embodiment, a fuse cutout cover has an integral roof portion. The roof portion covers the energized top of a fuse in a first type of cutout. An attachable roof extension covers the energized top of a fuse in a larger second type of cutout, such as a Fault Tamer cutout. By adding the roof extension, the same cover may be used with two types of cutouts, and there is not a large gap over the fuse, preventing wildlife from entering the gap. In another embodiment, a second roof is formed over the first roof portion to accommodate different types of cutouts. Electrical insulation between wildlife and the energized cutout is also increased.

A durable and secured switch assembly includes an alternate action switch with a push button on one end and two primary cable terminals on the opposing end. The switch is secured in a housing with a lumen configured to securely retain the switch body. A first section of the lumen at the proximal end includes peripheral spacing for epoxy between the switch body and the inside wall of the housing. A second section of the lumen at the distal end includes a second peripheral spacing for epoxy between the switch body and the inside wall of the housing. The second section includes a peripheral notch for securing a cover that encloses the primary cable terminals in a cavity that is filled with epoxy. The housing includes a primary channel that connects a primary cable to the primary cable terminals and secondary channel for securing a secondary cable to the housing.

A micro-fuse assembly includes a substrate, a number of thin-film micro-fuses on the substrate, and a topping wafer configured to sealingly engage to at least one of the substrate or the thin-film micro-fuses to define a cavity therebetween. The cavity is configured to encapsulate the thin-film micro-fuses within an inert environment sealed within the cavity. A method of encapsulating a micro-fuse assembly within an inert environment using a topping wafer is also disclosed.

A water and flame barrier button assembly is incorporated into an electrical enclosure such as a GFCI housing to provide water and flame resistant set and reset buttons. The buttons are contained within flexible sealing frames that allow one end of the buttons to extend through the top portion of the GFCI housing while the opposite end of the button is exposed within the base portion of the sealing frame. The base portion of the sealing frame attaches to the interior of the housing with the exposed button end positioned inward of the sealing frame base. The base of the sealing frame contacts the GFCI circuit board while providing a rebound force to return either the set or reset button exposed end from a position depressed and in contact with the circuit board to a position not in contact with the circuit board and returning inward of the sealing frame base.

A keyboard apparatus includes a key cover having a plurality of holes that extend through a thickness of the cover from a top side of the cover to a bottom side of the cover. The plurality of holes are arranged to collectively form a predetermined shape. A mask layer is disposed at the bottom side of the cover. A first region of the mask layer is opaque and a second region of the mask layer allows light to pass therethrough to the plurality of holes. A light source is disposed beneath the mask layer and positioned such that light emitted from the light source passes through the second region of the mask layer to the plurality of holes. A sensory contact terminal is disposed beneath the mask layer, and the terminal detects a keystroke movement.