The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 08, 2012
Filed:
Jun. 11, 2009
Andrew Ungerleider, Sante Fe, NM (US);
W. Gene Ramsey, Las Cruces, NM (US);
Andrew Ungerleider, Sante Fe, NM (US);
W. Gene Ramsey, Las Cruces, NM (US);
Other;
Abstract
A method of making a foamed glass composite, including crushing a vitreous precursor material, such as waste glass, frit, metallurgical slag or the like, sizing the crushed vitreous precursor to segregate an amount of crushed particles of a predetermined size and pelletizing the crushed particles. The pellets are preheated and passed through a high-temperature zone to foam the pellets. The foamed pellets are rapidly quenched to a temperature below their dilatometric softening point and then cooled to room temperature. The high temperature zone is at least about 1200° C. and the pellets are preheated to within no more than about 25° C. of their dilatometric softening point. The pellets are quenched to partially or completely avoid annealing and have increased hardness and compressive strength as a consequence, as well as a preferred failure mode under compression and torsional loads of crushing/shattering.