Trent Scott Parker
Medical Practice in Salt Lake City, UT

4173519, Nov 6, 1979

Nov 7, 1978

5/958539

Trent J. Parker - Salt Lake City UT
Harmel A. Dawson - Salt Lake City UT

C25C 120, C25C 700

204110

A method, process, system, and apparatus for recovering metal values such as gold and silver from ores. The process contemplates the prior separation, through appropriate apparatus, of primary slimes from the coarse fraction of ores and each fraction is processed separately and by particular methods most suitable for maximum economic recovery of metal values from each fraction. The coarse fraction materials are routed to constitute one leg of the method to a series of heap-leach piles that are processed in a totally distinct manner by a very low trickle (0. 0002 gal/sq. ft. /min) of required strength cyanide solution. Metal values are thereby obtained in solution high enough to pass direct to electro-winning cells by-passing expensive intermediate concentrating steps. The primary slime fraction of the ores is routed to constitute a second leg of the process to soak-leach tanks for extraction of metal values without agitation, or by agitation if required, by the carbon-in-pulp adsorption-desorption process with a low cyanide (1 lb. per ton) concentration.

4872955, Oct 10, 1989

Apr 18, 1988

7/182887

Trent J. Parker - Salt Lake City UT
Byron M. Parker - Salt Lake City UT

Uni-Frac Inc. - Salt Lake City UT

B01D 316, B01D 4700

202154

A vapor-and-liquid contact structure for distillation, fractionation, rectification, absorption, and the refining, in a column, of various liquid materials such as petroleum, chemical, and alcohol solutions wherein provision is made for the inclusion of vertically-spaced bubble plate chambers, having respective liquid and vapor contact devices, to accommodate contact of counter-current flows of reflux liquid and vapors. A downcomer, including slanted ramps, is disposed outside of the vapor conduit-defining interior, and defines an elongate downcomer structure for liquid flow. Accordingly, descending reflux liquid flow is kept outside of primary vapor flow, with secondary vapor evolving from descending reflux being conducted circuitously back into the primary vapor flow for ascent to the next-above contact device. Plate efficiency is enhanced through maximum plate-area effective use and unidirectional liquid-flow over such plates. Column sections are constructed in essentially identical modules which can be stacked and secured together to reduce fabrication and engineering costs.

4869851, Sep 26, 1989

May 13, 1988

7/189612

Trent J. Parker - Salt Lake City UT
Byron M. Parker - Salt Lake City UT

Uni-Frac Inc. - Salt Lake City UT

B01F 304

2611141

An effectively rectangular vapor/liquid contact tray, for utilization in fractionation columns, towers, and the like, for effecting distillation, fractionation, rectifiction, absorption, and refining of various liquid materials such as petroleum, chemical and alcohol solutions. Provisions are made in the contact tray to reduce the magnitude of vapor-pressure drop between successive contact chambers as well as to provide a positive and more effective vapor/liquid contact. This result is effected through the empolyment of a series of mutually spaced parallel baffles. They are arranged transverse to and submerged in fluid flow, this to take advantage of the advancing liquid's kinetic energy and resulting recirculation zones associated with the baffles and upstream from the outlet weir of the contact tray. Vapor admittance apertures are provided proximate the downstream surfaces of the baffles, through the contact tray, so as to assure positive vapor/liquid contact and to take advantage of low pressure conditions thereat. The vapor admittance apertures are arranged for progressively less vapor flow through the tray in the downstream direction.

4750975, Jun 14, 1988

Mar 17, 1986

6/840134

Trent J. Parker - Salt Lake City UT
Byron M. Parker - Salt Lake City UT

Uni-Frac, Inc. - Salt Lake City UT

B01D 326, B01D 342

202154

Vapor and liquid contact structure for distillation, fractionation, rectification, absorption, and the refining, in a column, of various liquid materials such as petroleum, chemical, and alcohol solutions. Provision is made for the inclusion of vertically-spaced bubble plate chambers, having respective liquid/vapor contact devices, to accommodate contact of counter-current flows of reflux liquid and vapors. Downcomer means including slanted ramps, disposed outside of the vapor conduit-defining interior, define elongate downcomer structure for liquid flow and thereby, i. e. , by such slanted construction, reduce froth or foam passing to a next lower contact device, eliminating unwanted counter-current gas entrainment between contact devices. Liquid flow rates over exit weirs beyond 30 gpm/inch are obtained. Downcomer reflux reservoir depth can be adjusted by an adjustable gate proximate the slot opening to a given contact device.

4762651, Aug 9, 1988

May 26, 1987

7/054181

Byron M. Parker - Salt Lake City UT
Trent J. Parker - Salt Lake City UT

Uni-frac, Inc. - Salt Lake City UT

B01F 304

2611141

An effectively rectangular vapor/liquid contact tray, for utilization in fractionation columns, towers, and the like, for effecting distillation, fractionation, rectification, absorption, and refining of various liquid materials such as petroleum, chemical and alcohol solutions. Provisions are made in the contact tray to reduce the magnitude of vapor-pressure drop between successive contact chambers as well as to provide a positive and more effective vapor/liquid contact. This result is effected through the employment of a series of mutually spaced parallel baffles. They are arranged transverse to and submerged in fluid flow, this to take advantage of the advancing liquid's kinetic energy and resulting recirculation zones associated with the baffles and upstream from the outlet weir of the contact tray. Vapor admittance apertures are provided proximate the downstream surfaces of the baffles, through the contact tray, so as to assure positive vapor/liquid contact and to take advantage of low pressure conditions thereat.