Patent ID: 8329105
Filing Date: 2012-12-11
Classification: G01N

Abstract:
1. A lightweight furnace used for quickly assaying a crushed ore sample in the field or in the laboratory, the furnace comprising: a stand having a stand base with a dish opening therein; a scorifying dish, a bottom of the scorifying dish received in the dish opening in the stand base; a cupel, the cupel received on top of the scorifying dish, the cupel adapted for receiving a crushed ore sample therein to be assayed; a dish lid, the dish lid received on top of the scorifying dish and covering the cupel; and gas heat means, the gas heat means for directing a gas flame around an outer circumference of the cupel and heating and assaying the ore sample inside the cupel; wherein the stand is a metal stand and the stand base includes a first end portion with the dish opening therein and a second end portion with an upwardly folded heat shield, the heat shield used to hold a portion of the gas heat means thereon.