Eugene W Clark

US Patent:

6409795, Jun 25, 2002

Filed:

Nov 17, 1998

Appl. No.:

09/195117

Inventors:

George K. Sievers - Burbank CA
Eugene V. Clark - Burbank CA

Assignee:

General Electric Company - Schenectady NY

International Classification:

B22F 100

US Classification:

75255

Abstract:

Abradable coatings for turbine engine shrouds are formed from biscuits formed of silicon-diffused powdered alloy compositions which are processed with an HF precursor to strip oxides from the coating during processing, the alloy blends comprising MCrAl(Y) alloys in which n is 0, 1 or more.

US Patent:

43894399, Jun 21, 1983

Filed:

Jul 2, 1981

Appl. No.:

6/279827

Inventors:

Eugene V. Clark - Northridge CA
George K. Sievers - Burbank CA

Assignee:

Turbine Metal Technology, Inc. - Burbank CA

International Classification:

B05D 722
B32C 108

US Classification:

428 36

Abstract:

Tubing, pump cylinders and tank vessels, and similar tubular apparatus for containing and conveying from a supply thereof a highly erosive composition slurry comprising fine particulates in a liquid medium and free of gross particulates along a predetermined path extending from a slurry supply is provided, and method therefor, the apparatus comrising a steel wall of elongated tubular configuration defining an interior surface confining the slurry on the predetermined path, the surface tending to erode though passing contact with the slurry, and an erosion resistant diffusion coating on the surface having an inner layer comprising intimately dispersed iron carbide and an outer layer consisting essentially of iron boride, in erosion blocking relation during conveyance of the slurry through the tubular apparatus.

US Patent:

56832265, Nov 4, 1997

Filed:

May 17, 1996

Appl. No.:

8/649249

Inventors:

Eugene V. Clark - Tujunga CA
Ralph J. Ortolano - Tujunga CA

International Classification:

F04D 2944

US Classification:

415200

Abstract:

Steam turbine fluid directing components are improved in erosive wear resistance by application of either relatively tougher and relatively less hard thermal spray or relatively harder and relatively less tough diffusion alloy surface modification to different portions of the component as a function of the locally greater or locally smaller angle of attack of solid particles on those portions in the use condition of the component.

US Patent:

61031860, Aug 15, 2000

Filed:

Nov 18, 1998

Appl. No.:

9/195136

Inventors:

George K. Sievers - Burbank CA
Eugene V. Clark - Burbank CA

Assignee:

TMT Research Development, Inc. - Smith River CA

International Classification:

B22F 312
B22F 704

US Classification:

419 8

Abstract:

Abradable coatings for turbine engine shrouds are formed from biscuits formed of silicon-diffused powdered alloy compositions which are processed with an HE precursor to strip oxides from the coating during processing, the alloy blends comprising MCrAl(Y). sub. n alloys in which n is 0, 1 or more.

US Patent:

48507172, Jul 25, 1989

Filed:

Sep 17, 1982

Appl. No.:

6/419496

Inventors:

Eugene V. Clark - Northridge CA
George K. Sievers - Burbank CA

International Classification:

G01K 100
G01K 108

US Classification:

374208

Abstract:

Process stream sensor tube apparatus adapted for sensing process conditions in a process stream having fine particulate and/or chemical erosive or corrosive agents, the apparatus (10) comprising the sensor tube (20) and a housing (12) therefor having its external surfaces conditioned against corrosive or erosive wear by a coating (26) comprising at least one carbide, boride, aluminide or silicide alloy of at least one of iron, nickel, or cobalt formed in situ locally at the housing external surface portion normally subject to erosive wear.

US Patent:

49716247, Nov 20, 1990

Filed:

Dec 22, 1988

Appl. No.:

7/289228

Inventors:

Eugene V. Clark - Northridge CA
George K. Sievers - Burbank CA

International Classification:

C22C 2904

US Classification:

75238

Abstract:

Erosion and abrasion resistant refractory metal carbide articles are provided having multiphase alloy of borides including titanium boride, binder metal boride, and titanium-binder metal-refractory metal borides by diffusion of titanium initially to convert the refractory metal carbide to its constitutents which are then reacted with boron, forming a new added surface in replacement of the original article surface, and bridging the original surface locus.

US Patent:

58833145, Mar 16, 1999

Filed:

Jun 11, 1996

Appl. No.:

8/661494

Inventors:

George K. Sievers - Burbank CA
Eugene V. Clark - Tujunga CA

International Classification:

C22C 3302
C22C 3306

US Classification:

75230

Abstract:

Abradable coatings for turbine engine shrouds are formed from biscuits formed of silicon-diffused powdered alloy compositions which are processed with an HF precursor to strip oxides from the coating during processing, the alloy blends comprising MCrAl(Y). sub. n alloys in which n is 0, 1 or more.

US Patent:

49342541, Jun 19, 1990

Filed:

Mar 29, 1984

Appl. No.:

6/594694

Inventors:

Eugene V. Clark - Northridge CA
George K. Sievers - Burbank CA

International Classification:

F16J 1534
C23C 902

US Classification:

277 962

Abstract:

Mechanical seals are imroved in wear properties, erosion, corrosion and galling resistance by forming a diffusion coating in the seal structure surface comprising an intermetallic compound of the seal structure iron, nickel or cobalt base metal and one or more of aluminum, boron, silicon and carbon.