Patent ID: 6270302
Filing Date: 2001-08-07
Classification: B60B,F16B,Y10S

Abstract:
A system to allow a visual determination of the rotational position of a rotatable object relative to a stationary object comprising:a body defining front and back surfaces where said body includes at least one aperture having a diameter d.sub.1 disposed through said front and back surfaces where said aperture is sized to fit about said rotatable object said body including a temperature sensitive coating which changes from a first to a second color when exposed to temperatures beyond a predetermined value;said aperture bounded by radial slots having a length l and extending outwardly in from said aperture so as to define a plurality of fingers which may be independently manipulated so as to enable said body to be biased about a rotatable object inserted through said aperture where each of said slots defines substantially parallel sides to said fingers over said length l; andmeans co-operable with said body to allow a visual determination of the rotational position of said rotatable object relative to the stationary object.