Ralph Ashton Cutler
Engineers in Centerville, UT
License number
Utah 167086-2202
Issued Date
Jul 6, 1989
Expiration Date
Mar 31, 2017
Category
Engineer/Land Surveyor
Type
Professional Engineer
Address
Address
Centerville, UT
Professional information
Flocculation Control System And Method
US Patent:
5376280, Dec 27, 1994
Filed:
Oct 25, 1993
Appl. No.:
8/143495
Inventors:
James H. Wilhelm - Sandy UT
C. J. H. Brest Vankempen - Salt Lake City UT
Ralph A. Cutler - Centerville UT
Vincent E. Hamilton - Salt Lake City UT
C. J. H. Brest Vankempen - Salt Lake City UT
Ralph A. Cutler - Centerville UT
Vincent E. Hamilton - Salt Lake City UT
Assignee:
Westech Engineering, Inc. - Salt Lake City UT
International Classification:
C02F 156, B01D 2130
US Classification:
210741
Abstract:
A flocculation control system for controlling a feed rate of a flocculant into an aqueous slurry comprises an elongate settling tube having an open lower end for placing into the slurry. An air eductor creates a subatmospheric pressure within the settling tube to thereby draw a sample of the slurry therein to a predetermined location above the slurry level. A control valve hermetically seals an upper end of the settling tube to maintain the subatmospheric pressure therein such that the sample is retained in a quiescent state and in fluid communication with the slurry body. A pressure sensor senses the subatmospheric pressure within the settling tube, and measurements thereof are taken at selectable intervals to develop an initial measurement of said pressure and intermediate lower magnitude measurements of said pressure resulting from the settling of particles from the sample. The pressure measurements enable calculation of the weight concentration and settling velocity of said suspended particulates. A desired settling velocity for optimizing flocculant feed rate can be determined from the weight concentration of the suspended particles.
Carbon Retention Screen With Variable Discharge Head
US Patent:
8551330, Oct 8, 2013
Filed:
Jun 23, 2010
Appl. No.:
12/821982
Inventors:
Ralph A. Cutler - Centerville UT, US
Jeffery H. Easton - Cottonwood Heights UT, US
Jeffery H. Easton - Cottonwood Heights UT, US
Assignee:
WesTech Engineering, Inc. - Salt Lake City UT
International Classification:
B01D 33/70
US Classification:
210150, 210151, 2102211, 210255, 210258
Abstract:
A carbon adsorption vessel for use in a CIP (carbon in pulp) or CIL (carbon in leach) process may be constructed. A slurry is obtained having dissolved (leached) precious metals. The slurry is brought into contact with carbon particles and is passed through a retention screen in the vessel. The dissolved precious metals adhere onto the carbon particles. An air lift pump provides the pressure differential necessary to drive the slurry through the retention screen, wherein the carbon particles are retained by the retention screen and the slurry passes through the retention screen. After passing through the retention screen, the slurry is received in to a receiving vessel that may be situated at, below or above the level of source vessel.