Patent ID: 6246316
Filing Date: 2001-06-12
Classification: B60C

Abstract:
A low tire pressure alarm system for sensing abnormal rotational speeds of a plurality of wheels on a trailer adapted for coupling to a tow vehicle comprising, in combination:a) a plurality of target means, each said target means being constructed and arranged for mounting adjacent to each of at least two of the wheels, for providing a sensing target rotating with each of the wheels;b) a plurality of sensing means, each said sensing means being constructed and arranged for non-rotatable attachment to the trailer, for sensing rotations of one said target means past one said sensing means and for generating signals directly representing rotational speeds;c) a compilation means, coupled to each said sensing means, for receiving said signals directly representing rotational speeds from each said sensing means and for using said signals for computing and comparing rotational speeds of the wheels; andd) alarm indicator means, constructed and arranged for attachment to the tow vehicle and for coupling to said compilation means, for providing an indication of an abnormal rotational speed of a wheel.