Robert M Zimmerman

US Patent:

20010046596, Nov 29, 2001

Filed:

May 15, 2001

Appl. No.:

09/855439

Inventors:

Mark Rettig - Cincinnati OH, US
Gilbert Farmer - Cincinnati OH, US
Thomas Tomlinson - West Chester OH, US
Robert Zimmerman - Morrow OH, US
Bhupendra Gupta - Cincinnati OH, US

International Classification:

B32B003/00
B05D001/08

US Classification:

428/332000, 427/449000

Abstract:

An article comprising a substrate and an outer metallic layer, such as a coating, is provided with augmented heat transfer from the substrate through the combination of a layer thickness of about 0.003″ to about 0.017″, a layer surface roughness of at least about 500 micro inches Ra, a layer tensile bond strength of at least about 5 ksi, and a heat transfer augmentation of at least about 1.1. A method of making the article uses an electric arc wire thermal spray process in which the atomizing gas pressure is maintained within the range of about 20-80 psi.

US Patent:

20060042933, Mar 2, 2006

Filed:

Aug 26, 2004

Appl. No.:

10/926739

Inventors:

Mark Rosenzweig - Hamilton OH, US
Robert Zimmerman - Morrow OH, US
John Evans - Springfield OH, US

International Classification:

C25B 15/00
C25B 9/00

US Classification:

204242000, 204232000

Abstract:

Apparatus for electroplating a workpiece includes an unassembled electroplating anode assembly having weldable first and second structural anode members. The first structural anode member includes a positioning slot. The second structural anode member includes a positioning tab disposable in the positioning slot. A method for making an electroplating anode assembly includes obtaining an electroplating-anode-assembly first structural anode member having a positioning slot and obtaining an electroplating-anode-assembly second structural anode member having a positioning tab. The method also includes locating the positioning tab in the positioning slot and welding together the first and second structural anode members.

US Patent:

20060059918, Mar 23, 2006

Filed:

Sep 3, 2004

Appl. No.:

10/934172

Inventors:

James Caldwell - Alexandria KY, US
Thomas Tomlinson - West Chester OH, US
Robert Zimmerman - Morrow OH, US
Raymond Heidorn - Fairfield OH, US
Gilbert Farmer - Cincinnati OH, US

International Classification:

F23R 3/42

US Classification:

060772000, 060752000

Abstract:

A method for adjusting the airflow in a turbine component having a plurality of airflow holes. The method comprises the step of depositing an overlay metallic coating on the surface of the turbine component in a manner such that at least some of the airflow holes are partially filled such that the volume of the partially filled airflow holes is changed so as to adjust the airflow through the turbine component. Also provided is a turbine component having a plurality of airflow holes, at least some of the airflow holes being partially filled with the overlay metallic coating to change the volume thereof so as to adjust the airflow through the turbine component.

US Patent:

20070128360, Jun 7, 2007

Filed:

Dec 5, 2005

Appl. No.:

11/295278

Inventors:

Mark Gorman - West Chester OH, US
Brett Boutwell - Liberty Township OH, US
Robert Zimmerman - Morrow OH, US

International Classification:

B05D 7/22
C23C 16/00

US Classification:

427252000, 428654000, 427237000

Abstract:

A method for applying a NiAl based bond coat and a diffusion aluminide coating to a metal substrate comprises, in part, coating a portion of the external surface of the superalloy substrate, by physical vapor deposition with a layer of a NiAl based metal alloy, wherein the deposited NiAl based metal alloy includes a controlled amount of about 6 to 25 weight percent aluminum, wherein the deposited aluminum level of the NiAl based metal alloy is controlled to be about 50-100% of its final level after aluminizing to form a coated external portion; and subsequently, simultaneously aluminizing the coated external portion and a different surface of the superalloy substrate.

US Patent:

20070190245, Aug 16, 2007

Filed:

Feb 15, 2006

Appl. No.:

11/354363

Inventors:

Bhupendra Gupta - Cincinnati OH, US
Nripendra Das - West Chester OH, US
Mathew Saylor - Blanchester OH, US
Robert Zimmerman - Morrow OH, US

International Classification:

B05D 7/22

US Classification:

427237000

Abstract:

A method of forming a metal coating on surfaces of internal passages of a turbine part includes applying a nickel aluminum bond coating to an external surface of the turbine part, positioning the turbine part in a VPA chamber, coupling a gas manifold to at least one internal passage inlet, and coating at least a portion of the internal surface and the external of the turbine part by a vapor phase aluminiding (VPA) process using metal coating gases to form a coating on the internal surfaces of the turbine part.

US Patent:

20070207339, Sep 6, 2007

Filed:

Mar 6, 2006

Appl. No.:

11/368824

Inventors:

Robert Zimmerman - Morrow OH, US
John Evans - Springfield OH, US
Rudolfo Viguie - Crestview Hills KY, US

International Classification:

C23C 14/00
B32B 15/01

US Classification:

428680000, 204192110, 204192120

Abstract:

Methods provide for depositing a bond coat of a thermal barrier coating (TBC) system for a component designed for use in a hostile thermal environment. The method includes providing an article substrate having a substrate surface, forming a bond coat on the substrate by depositing a beta-phase Ni—Al bond coat by cathodic arc deposition, processing the bond coat by peening to improve the coating structure, and heat treating the bond coat. Also disclosed is a turbine blade comprising a nickel-base superalloy substrate, a bond coat on the surface of the substrate, and a ceramic thermal barrier coating overlying the bond coat surface.

US Patent:

20080014348, Jan 17, 2008

Filed:

Jul 28, 2005

Appl. No.:

11/191286

Inventors:

Bhupendra K. Gupta - Cincinnati OH, US
Nripendra Nath Das - West Chester OH, US
David Dye - Cincinnati OH, US
Robert G. Zimmerman - Morrow OH, US

International Classification:

B05D 7/22
C23C 16/00

US Classification:

427250, 427237

Abstract:

A method of forming a metal coating on surfaces of internal passages of a turbine blade includes, in an exemplary embodiment, the steps of positioning the turbine blade in a CVD chamber, coupling a reagent gas manifold to at least one internal passage inlet, and coating the surfaces of the at least one internal passage by a CVD process using metal coating reagent gases to form a metal coating on the surfaces of the at least one internal passage.

US Patent:

20080080978, Apr 3, 2008

Filed:

Oct 3, 2006

Appl. No.:

11/542444

Inventors:

Robert George Zimmerman - Morrow OH, US
John Frederick Ackerman - Laramie WY, US
Joseph Aloysius Heaney - Middletown OH, US
Bangalore Aswatha Nagaraj - West Chester OH, US
Michael James Weimer - Loveland OH, US

International Classification:

F03B 3/12

US Classification:

416241 R

Abstract:

Methods for coating a turbine engine rotor component involving depositing at least one platinum group metal selected from platinum, palladium, rhodium, ruthenium, iridium and osmium on the rotor component, and heating the rotor component to a temperature of from about 500 C. to about 800 C.