Abstract: The present invention provides a metal substrate parts gang having a frame, multiple substrates and multiple connective portions. The connective portions include a notched portion or break-out zone. A coating of resist or mask material is applied in the immediate proximity of the notched portion and then a layer of dielectric coating material is applied to the carrier gang. The resist serves to prevent the deposition of the dielectric coating material in the proximity of the notched portion. After coating, the carrier gang is fired in order to cure the dielectric material. The piece of base metal may be further processed, for example, screen printed with thick or think film inks. When required, the piece of base metal can be easily removed or separated from the frame by bending and/or twisting.

Abstract: The present invention provides an electrically heated air freshener for producing a scent comprising a housing having a receptacle for supporting a fragrance block, the fragrance block comprising a material that volatilizes upon heating and a porcelain enamel metal substrate comprising a metal substrate having a porcelain enamel coating bonded thereto. The porcelain enamel coating has bonded thereto a resistance strip for generating heat upon application of an electrical current and a conductive strip for conducting electrical current to the resistance strip.

Abstract: The present invention provides a method of fabricating coated multiple metal substrates comprising the steps of fabricating from a section of metal a gang matrix comprising a frame, at least one piece of base metal which later forms a substrate, and a connective portion connecting or linking the piece to the frame. The connective portion includes a notched portion or break-out zone. A coating of resist or mask material is applied in the immediate proximity of the notched portion and then a layer of dielectric coating material is applied to the carrier gang. The resist serves to prevent the deposition of the dielectric coating material in the proximity of the notched portion. After coating, the carrier gang is fired in order to cure the dielectric material. The piece of base metal may be further processed, for example, screen printed with thick or think film inks. When required, the piece of base metal can be easily removed or separated from the frame by bending and/or twisting.

Abstract: The present invention provides an electrically heated air freshener for producing a scent comprising a housing having a receptacle for supporting a fragrance block, the fragrance block comprising a material that volatilizes upon heating and a porcelain enamel metal substrate comprising a metal substrate having a porcelain enamel coating bonded thereto. The porcelain enamel coating has bonded thereto a resistance strip for generating heat upon application of an electrical current and a conductive strip for conducting electrical current to the resistance strip.

Abstract: The invention provides a method for making an electrical circuit device as well as a resulting device itself. The method includes the steps of forming a base or substrate of conductive metal and then securing an electrically conductive masking element to the substrate. The resulting product is coated with a layer of fusible particles of a dielectric or resistive material that is repelled by the surface of the masking element. The coated product is then heated to fuse the particles and provide a hard dielectric or resistive layer over surface portions of the base. The masking element provides an exposed conductive path to the base metal or substrate. A section of conductive metal foil may be bonded to the masking element to provide a continuous conductive bus on the substrate.

Abstract: The present invention provides a lubricated variable resistance control including a substrate having formed thereon an electrical resistance path and an electrical conductive path, and a movable contact electrically bridging the electrical resistance path and the electrical conductive path. Disposed along the electrical conductive path is a non-conductive lubricant material. The electrical conductive path includes one or more protruding ridges spaced along one surface of the electrical resistance path. The ridges are formed of an electrically resistive material and they serve to help insure that the control device does not suffer from current interruptions.