Gary Douglas Geiger

US Patent:

8489240, Jul 16, 2013

Filed:

Aug 3, 2007

Appl. No.:

11/833282

Inventors:

Zhaoyang Wan - Yardley PA, US
Gary E. Geiger - Richboro PA, US
Yong Zhang - Shanghai, CN
Yu Zhang - Shanghai, CN

Assignee:

General Electric Company - Schenectady NY

International Classification:

G01N 33/18

US Classification:

700266, 702 22, 702 23, 702 24, 702 25, 702 30, 702 31, 702 32, 702109, 435 3, 4352861, 435812, 436 55, 422 62, 137 11, 137157, 137180, 261 1, 261130

Abstract:

A control system for industrial water systems that utilizes multiple measurements of information and models to decide optimal control actions to maximize corrosion/scaling/fouling inhibition and particulate dispersancy performance and minimize cost of water and treatment chemicals. This system is capable of automatic operation for a wide range of process conditions, ensures multiple performance objectives, achieves robust operation under a variety or un-measurable disturbances and achieves the least costly solution delivery.

US Patent:

20100028202, Feb 4, 2010

Filed:

Jul 30, 2008

Appl. No.:

12/182642

Inventors:

Zhaoyang WAN - Yardley PA, US
Gary E. Geiger - Richboro PA, US
Glenn Johnson - Devon PA, US
Simon Craig Norton - Sandbach, GB
Anthony Michael Rossi - Lower Alloways Creek NJ, US
William Weaver Thompson - Wenonah NJ, US

International Classification:

G05D 21/00
C02F 5/00

US Classification:

422 62

Abstract:

A control system is disclosed for monitoring and controlling an industrial water system comprising (a) obtaining a priori knowledge about the correlation between water and treatment chemistry and equipment health; (b) pre-defining a set of operating regions of more than one feed-water or system water variable and at least one chemical treatment variable, where, based on (a) above, corrosion, scaling and fouling are inhibited; (c) adjusting the at least one chemical treatment variable according to the more than one feed water or system water variable, such that based on (a), corrosion, scaling and fouling are inhibited.

US Patent:

20100163469, Jul 1, 2010

Filed:

Dec 26, 2008

Appl. No.:

12/344324

Inventors:

Zhaoyang Wan - Yardley PA, US
Gary Edwin Geiger - Richboro PA, US
Glenn Alfred Johnson - Devon PA, US
Brian Walter Lasiuk - Waukesha WI, US

International Classification:

C23F 11/00
C02F 1/00
G05D 21/00

US Classification:

210 961

Abstract:

A control system is disclosed for monitoring and controlling localized corrosion in an industrial water system, comprising: measuring quantitative localized corrosion rate and at least one controllable water chemistry variable; identifying mathematical correlations between the quantitative localized corrosion rate and the at least one controllable water chemistry variable; establishing mathematical correlations between the controllable water chemistry variable and at least one chemical treatment feed; defining an index derived from current and future values of the localized corrosion rate and an index derived from current and future values of the at least one chemical treatment feed; utilizing a processor to minimize the index of the localized corrosion rate and the index of the at least one chemical treatment feed and determine current and future values of the at least one chemical treatment feed; and implementing only a current value of the at least one chemical treatment feed within the water system.

US Patent:

44118651, Oct 25, 1983

Filed:

May 28, 1981

Appl. No.:

6/267840

Inventors:

Gary E. Geiger - Philadelphia PA
Roger C. May - Glenside PA

Assignee:

Betz Laboratories, Inc. - Trevose PA

International Classification:

C23F 1104

US Classification:

422 16

Abstract:

A method for reducing corrosion of metal surfaces is disclosed according to which a specific corrosion inhibitor is utilized. The inhibitor comprises water-soluble zinc compound, water-soluble chromate compound and copolymer of acrylic acid and hydroxylated lower alkyl acrylate. Water-soluble orthophosphate can also be used.

US Patent:

43035680, Dec 1, 1981

Filed:

Dec 10, 1979

Appl. No.:

6/101658

Inventors:

Roger C. May - Glenside PA
Gary E. Geiger - Philadelphia PA

Assignee:

Betz Laboratories, Inc. - Trevose PA

International Classification:

C08L 3102
C08L 3302

US Classification:

260 296MP

Abstract:

The invention deals with a method and composition(s) for use in inhibiting corrosion of metallic parts in contact with aqueous systems. It has been discovered that protective oxide films can be formed on the metallic surface if such is allowed to contact an aqueous system containing a sufficient amount for the purpose of a polymer composed primarily of acrylic moieties and hydroxylated lower alkyl acrylate moieties and a water-soluble orthophosphate. Optionally but desirably, polyphosphates, organo-phosphonates, and copper corrosion inhibitors may be included.

US Patent:

44977131, Feb 5, 1985

Filed:

Apr 1, 1982

Appl. No.:

6/364562

Inventors:

Gary E. Geiger - Philadelphia PA

International Classification:

C02F 514

US Classification:

210699

Abstract:

A corrosion inhibition and scale control method and composition are disclosed. The method comprises, adding to a cooling water system, for which protection is desired, a water soluble zinc salt, a cellulose gum material and an organo-phosphorus acid compound. Optionally, a corrosion inhibitor compound such as a 1,2,3-triazole or thiazole compound may be added to afford additional protection. Molybdate salts may also be included as optional corrosion inhibitors.

US Patent:

46630538, May 5, 1987

Filed:

May 3, 1982

Appl. No.:

6/373903

Inventors:

Gary E. Geiger - Philadelphia PA

Assignee:

Betz Laboratories, Inc. - Trevose PA

International Classification:

C02F 514

US Classification:

210699

Abstract:

A corrosion inhibition and scale control method and composition are disclosed. The method comprises, adding to a cooling water system, for which protection is desired, a water soluble zinc salt, a water soluble sulfonated styrene/maleic anhydride (SSMA) copolymer and an organo-phosphorus acid compound. A corrosion inhibitor compound such as a 1,2,3-triazole or thiazole compound may be added to afford additional protection. Molybdate salts may also be included as optional corrosion inhibitors. A cellulose gum material and/or water soluble acrylic acid polymer or copolymer may be conjointly used with the SSMA copolymer.

US Patent:

43246842, Apr 13, 1982

Filed:

Mar 19, 1980

Appl. No.:

6/131592

Inventors:

Gary E. Geiger - Philadelphia PA
Roger C. May - Glenside PA

Assignee:

Betz Laboratories, Inc. - Trevose PA

International Classification:

C23F 1118
C23F 1116
C23F 1114
C23F 1112

US Classification:

252389A

Abstract:

A composition is disclosed comprising a stable aqueous solution of (i) water-soluble zinc compound, (ii) water-soluble chromate compound and (iii) a particular type of water-soluble polymer composed essentially of moieties derived from acrylic acid and hydroxylated lower alkyl acrylates. The composition could additionally comprise (iiii) orthophosphate.