Process for testing the freeze-thaw resistance of solids
Patent 6253617 Issued on July 3, 2001. Estimated Expiration Date: 
December 28, 2018. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
December 28, 2018. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3504532 Method of detecting the onset of cracking in articles during dynamic testing Stable aqueous epoxy dispersions latex binders and paints which are free of volatile coalescents and freeze-thaw additives Polyurethane hybrid dispersions and coatings having increased wet adhesion and solvent resistance Patent #: 6031041 InventorApplicationNo. 214064 filed on 12/28/1998US Classes:73/597, Velocity or propagation time measurement73/766TemperatureExaminersPrimary: Noori, MaxAttorney, Agent or FirmForeign Patent References
International ClassG01H 005/00Foreign Application Priority Data1996-06-28 DEAbstractA solid to be tested is preconditioned by drying it to a specified moisture content and its load surface is inserted downward into a test container which takes up test liquid thereby completely wetting the load surface. The test container is immersed in a temperature equalization bath which is temperature controlled. The test liquid is subjected to a predetermined temperature-time profile simulating a freeze-thaw cycle via the temperature-equalization bath. Then, at least one comparison measurement is taken to determine a change in a physical quantity representative of the inner damage to the solid. From the comparative physical values measured, the inner damage to the solid is determined based on the effects of the freeze-thaw cycle and the test liquid. | |
