TODAY’S PATENT – METHOD AND APPARATUS FOR PRODUCING CONTROLLED FREEZING OF A LIQUID

Today’s invention was invented by Shimon Ullman on 12^th June, 2001 bearing patent No. US6244329B1.

A system and method for producing controlled cooling of a liquid including the steps of: removing heat from the liquid so as to cause formation of solid portions therein; and generally simultaneously with removing heat from the liquid, supplying energy to the solid portions at a frequency which is absorbed by the solid portions to a significantly greater extent than by the liquid.

The invention seeks to prevent uncontrolled freezing of liquids, including  preservation of animal and plant tissue without causing rupture of membranes therein. It cause selective lowering of the freezing temperatures of certain liquids by adding certain solvents. which, involves contamination of the liquids, which is prevented.