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Application filed by Innovative Entpr LtdfiledCriticalInnovative Entpr Ltd
Priority to MYPI9601724priorityCriticalpatent/MY134500A/en
Publication of MY134500ApublicationCriticalpatent/MY134500A/en
A PRESSURE INDICATING DEVICE (2) E.G. FOR SECURING TO A TYRE VALVE (1) IS DISCLOSED. IT CONTAINS A FLEXIBLE IMPERMEABLE DIAPHGRAM (7) ON ONE WALL OF A PERMANENTLY HERMETICALLY SEALED CHAMBER (8) PRESSURIZED TO A GIVEN PRESSURE. A MECHANICAL LINKAGE (10, 12) WHICH MOVES DEPENDING ON WHETHER THE PRESSURE, E.G. IN A TYRE TO WHICH THE DEVICE IS ATTACHED, IS GREATER OR LESS THAN THAT IN ITS CHAMBER (8) E.G. ROTATES A BICOLOURED BALL (14), SO THAT THE COLOUR DISPLAYED PROVIDES A VISUAL SIGNAL THAT INDICATES IF THE TYRE PRESSURE IS ABOVE OR BELOW THE GIVEN PRESSURE. THIS ENABLES A PUNCTURE OR AIR LOSS TO BE DETECTED BY A RAPID GLANCE.(FIG. 1)