Patent ID: 7034259

Claim:
A self-regulating heater assembly comprising: at least one positive temperature coefficient (PTC) heating element; a pair of spaced electrodes, each electrode including a first side, said first sides of said pair of electrodes being spaced from one another, wherein said at least one PTC element is located between, supported by and energized by said pair of electrodes, and said at least one PTC element is oriented approximately transverse to a longitudinal axis of said pair of spaced electrodes; an electrically and thermally conductive interface pad interposed between and contiguous to said first side of at least one of said pair of electrodes and a wall of said PTC element; at least one electrically insulative spacer member for establishing substantially uniform electrical contact between said first side of each electrode and said at least one PTC element; and a first pair of power leads, one power lead being connected to each of said pair of electrodes for energizing said pair of electrodes.