Ronald R Preston
Architects in Eagle, CO
License number
Colorado 303406
Issued Date
Apr 12, 1988
Renew Date
Nov 1, 2015
Expiration Date
Oct 31, 2017
Type
Architect
Address
Address
Post Office BOX 1596, Eagle, CO 81631
Professional information
Rockngoldbasket
US Patent:
2011007, Mar 31, 2011
Filed:
Sep 30, 2009
Appl. No.:
12/586909
Inventors:
Ronald Richard Preston - Eagle CO, US
International Classification:
B07C 5/00
US Classification:
209606, 209509
Abstract:
A self contained and portable gold and gem separation kit. The apparatus is driven with a manual rocking motion to wash material with the self contained water. Using the natural wave motion, generated in the water from the rocking apparatus, the material is washed and classified. The bottom collection tray catches the classified material, and is removable for ease of collection of the concentrated material.