Importance

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Abstract

A motion-activated valve stem light comprising a housing adapted to fit securely on a valve stem of a vehicle wheel, and a light circuit contained within the housing, the light circuit including an LED, a battery power source, a control circuit connected to the power source and the LED, and a self-contained motion switch connected to an input of the control circuit, wherein the motion switch includes a sealed case, e.g., a button cell case, having first and second conductive terminal portions, an electrical insulator between the terminal portions, and a BB or other conductive member freely movable within the case and adapted to electrically interconnect the conductive terminal portions at a plurality of spaced points within the case. The valve stem light may also or alternatively have a trial activation mechanism including a thin insert which extends through a slot in a male coupling portion of a multi-piece housing and between two batteries when the housing is in a partially assembled state in which the male coupling portion partially engages a mating female coupling portion. Each side of the insert has a battery contact, and the battery contacts are connected to a normally open switch external to the housing. The female coupling portion has a solid sidewall which covers the male coupling portion and thereby covers the slot when the trial activation switch is removed and the coupling portions are fully engaged. In this state an O-ring around the male coupling portion seals the junction of the coupling portions such that the housing is substantially waterproof.

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First Claim