Patent ID: 7042354
Filing Date: 2006-05-09
Classification: G08B,G09F

Abstract:
1. A tamper-resistant remotely monitorable electronic seal comprising: a shaft portion; a sensor; a socket arranged to engage said shaft portion and said sensor in a monitorable manner; and a wireless communicator associated with at least one of said shaft portion, said sensor and said socket and being operative to provide a remotely monitorable indication of at least one monitorable event, said sensor being operative to sense application of a first force to said electronic seal in an attempt to separate said shaft portion from said socket and to indicate said application of said first force as one of said at least one monitorable event, said shaft portion, said socket and said sensor being constructed such that upon application of a second force which is not sufficiently large to separate said shaft portion from said socket, said application of said second force is indicated as one of said at least one monitorable event, even though said shaft portion remains mechanically engaged with said socket; a sensing cap mounted on said shaft portion and supporting said sensor; and at least one retaining ring engaging said socket and said shaft portion for retaining said sensing cap in said socket independently of said shaft portion and wherein said shaft portion includes frangible portions, whereby application of said first and second forces causes breakage at the respective frangible portions, which breakage is one of said at least one monitorable event.