Patent ID: 8416094

Claim:
A motion sensor comprising; a printed circuit board with a through hole, said through hole having a cavity with a first opening and a second opening and an electrically conductive interior surface; a first housing member and a second housing member, said first and second housing members comprised of electrically conductive material and enclosing said first opening and said second opening of said printed circuit board through hole cavity; a first electrically conductive element in association with said printed circuit board, said first electrically conductive element located at circumference surrounding said printed circuit board through hole, whereby said first housing member and said second housing member is mounted on said first electrically conductive element; and a second spherical shaped electrically conductive element, said second spherical shaped electrically conductive element located within a space consisting of said through hole cavity enclosed by said first housing and said second housing, said second spherical shaped electrically conductive element capable of three dimensional movement within said space, and further capable of closing an electrical circuit when in contact with said through hole electrically conductive interior surface and said first housing or said second housing, and wherein closing of said electrical circuit triggers a signal indicative of motion.