Gary Frederick Wolf

US Patent:

61652482, Dec 26, 2000

Filed:

May 24, 1999

Appl. No.:

9/317689

Inventors:

Jack Leiner - Monmouth Beach NJ
Gary A. Wolf - Cleveland Heights OH

Assignee:

Metallic Fingerprints, Inc. - Monmouth Beach NJ

International Classification:

C22B 114
G01N 3320

US Classification:

75353

Abstract:

A method for evaluating a batch of scrap material, subsequent to processing of the batch, to determine the content of precious metal present in the batch prior to processing of the batch, includes introducing a predetermined amount of a tracer into the batch, prior to processing, processing the batch and the tracer into a homogenous mixture, assaying a sample portion of the homogenous mixture to assess the amount of tracer in the sample portion, and to assess the amount of precious metal in the sample portion, and ascertaining the content of the precious metal in the batch prior to processing of the batch by applying to the assayed amount of the precious metal a ratio between the predetermined amount of tracer introduced into the batch prior to processing and the assessed amount of tracer in the sample portion. Where the precious metal includes gold, silver, platinum, palladium or rhodium, a tracer includes one or more of the metals bismuth, antimony, lead, cadmium, tellurium, barium, cobalt, nickel, hafnium and selenium.

Address:

670 Nucla Way, Aurora, CO 80011

VIN:

5UYTS28237R010336

Make:

BMW

Model:

X5-Series AWD 4dr 4.8i

Year:

2007