PRESSURE INDICATING VALVE STEM

摘要

A pressure indicating valve stem for a pneumatic tubeless tyre comprises an elastomeric base (1) (10) which snap-fits into the valve aperture of a wheel rim or is clamped thereto and supports a rigid mounting sleeve (4) (13) (19) within which a valve core holder (5) (11) (23) is telescopically slideable. Sealing means, being an elastomeric diaphragm, extends from the base to the core holder and itself provides all of the elastic restraint on the movement of the core holder.