Don W Webb

US Patent:

46199012, Oct 28, 1986

Filed:

Feb 21, 1985

Appl. No.:

6/704104

Inventors:

Don W. Webb - Bartlesville OK
William B. Bard - Bartlesville OK

Assignee:

Phillips Petroleum Company - Bartlesville OK

International Classification:

B01J 808
B01J 3108

US Classification:

436 55

Abstract:

A desired unreacted monomer concentration is maintained in the reaction effluent removed from a polymerization reactor by manipulating the catalyst feed rate to the polymerization reactor based on a non-linear control signal derived from a comparison of actual and desired unreacted monomer concentration.

US Patent:

48068365, Feb 21, 1989

Filed:

Jan 14, 1988

Appl. No.:

7/143784

Inventors:

Don W. Webb - Bartlesville OK

Assignee:

Applied Automation, Inc. - Bartlesville OK

International Classification:

G05B 1136

US Classification:

318609

Abstract:

A tuning adjustment for a PI controller is disclosed which produces a desired response for a controlled variable in a selective control loop having an external reset feedback signal for anti-reset-windup protection. The desired control effect is evident in the time response of the controlled variables return to set point when a select switches signals and suddenly selects an output limited PI controller to control a process variable, and the selected controller assumes control of the process variable starting with its output at the limiting value. The tuning adjustment is implemented by combining the signal selected for controlling the process variable and a tuning factor for use as the reset feedback signal for the PI controller.

US Patent:

48468509, Jul 11, 1989

Filed:

Feb 19, 1988

Appl. No.:

7/157763

Inventors:

Don W. Webb - Bartlesville OK

Assignee:

Applied Automation, Inc. - Bartlesville OK

International Classification:

B01D 5314
B01D 342

US Classification:

55 21

Abstract:

In an absorption process utilizing a feed gas compressor, the absorption pressure is maximized within the constraints of the system by a computer controller that automatically increases the pressure until a constraint for compressor speed or absorption pressure is encountered. The control action coordinately manipulates compressor speed and the absorption pressure in response to the actual compressor suction pressure to achieve the desired result.

Address:

5514 Whisper Rdg Dr, Sugar Land, TX 77479

Phone:

2813132947

VIN:

5FNYF28517B006382

Make:

HONDA

Model:

PILOT

Year:

2007