Patent ID: 8281815
Filing Date: 2012-10-09
Classification: B01L,F16K,Y10T

Abstract:
1. A valve filler composition comprising: a phase transition material which has a melting point of approximately 70° C. and which is in solid phase at a temperature below its melting point and which is in fluidic phase at a temperature of or above its melting point; a heating fluid having a magnetic flux density of 250 Gauss and comprising a carrier oil and a plurality of micro heating particles dispersed in the carrier oil, and an external energy source supplying external energy to the valve filler composition, wherein the external energy source comprises a laser light source, wherein the heating fluid is mixed with the phase transition material, wherein, the valve filler composition is in solid phase at room temperature, and transforms into the fluidic phase when the external energy is supplied to the valve filler composition, and wherein, when the external energy is supplied to the valve filler composition, the micro heating particles dispersed in the carrier oil generate heat, to change the phase transition material from the solid phase into the fluidic phase in less than one second.