James S Macdonald

US Patent:

6817751, Nov 16, 2004

Filed:

Oct 8, 2002

Appl. No.:

10/268137

Inventors:

Dwight R. Huckby - Brookpark OH
James E. MacDonald - Medina OH
John T. OBrien - Shaker Heights OH

Assignee:

The Sherwin-Williams Company - Cleveland OH

International Classification:

B01F 902

US Classification:

366217

Abstract:

Apparatus and method for mixing a fluid dispersion disposed in a container having either a cylindrical or a square shape. The apparatus includes a holding structure having a retaining structure connected to a base. The retaining structure prevents lateral movement of the container both when the container has a cylindrical shape and when the container has a generally square shape with a width substantially equal to the diameter of the cylindrical shape. The apparatus rotates the container about at least one axis.

US Patent:

7068126, Jun 27, 2006

Filed:

Mar 4, 2004

Appl. No.:

10/793047

Inventors:

Xiangxiang Huang - Solon OH, US
James D. MacDonald - Rockwall TX, US

Assignee:

Discera - Ann Arbor MI

International Classification:

H03H 3/013
H03H 9/10

US Classification:

333188, 310312, 29 2535

Abstract:

A method for modifying the resonance frequency of a micro-mechanical resonator, and resonators on which the method is practiced. A packaged resonator is trimmed by directing electromagnetic energy to the resonator through a transparent portion of the package. The removal of mass (by the energy) affects the resonance frequency of the resonator in a predictable manner. In some embodiments, the energy is sourced from a femtosecond laser. In some variations of the illustrative embodiment, the amount of mass to be removed is determined as a function of its location on the resonator. A mass-trimming map is developed that identifies a plurality of potential mass-trimming sites on the resonator. A site can be classified as a fine-tuning site or a coarse-tuning site as a function of the degree to which mass removal at those sites affects the resonance frequency. The sites can also be characterized as a function of their position relative to features of the resonator (e. g. , nodal lines, etc. ).

US Patent:

7077560, Jul 18, 2006

Filed:

Jun 17, 2004

Appl. No.:

10/870411

Inventors:

Dwight R. Huckby - Brookpark OH, US
James E. MacDonald - Medina OH, US
John T. O'Brien - Shaker Heights OH, US

Assignee:

The Sherwin-Williams Company - Cleveland OH

International Classification:

B01F 9/02

US Classification:

366209, 220628, 220737

Abstract:

Apparatus and method for mixing a fluid dispersion disposed in a container having either a cylindrical or a square shape. The apparatus includes a holding structure having a retaining structure connected to a base. The retaining structure prevents lateral movement of the container both when the container has a cylindrical shape and when the container has a generally square shape with a width substantially equal to the diameter of the cylindrical shape. The apparatus rotates the container about at least one axis.

US Patent:

7170369, Jan 30, 2007

Filed:

Sep 2, 2005

Appl. No.:

11/218673

Inventors:

Xiangxiang Huang - Solon OH, US
James D. MacDonald - Rockwall TX, US

Assignee:

Discera, Inc. - San Jose CA

International Classification:

H03H 3/007
H03H 3/013

US Classification:

333186, 333188, 333200, 310312

Abstract:

A method for modifying the resonance frequency of a micro-mechanical resonator, and resonators on which the method is practiced. A packaged resonator is trimmed by directing electromagnetic energy to the resonator through a transparent portion of the package. The removal of mass (by the energy) affects the resonance frequency of the resonator in a predictable manner. In some embodiments, the energy is sourced from a femtosecond laser. In some variations of the illustrative embodiment, the amount of mass to be removed is determined as a function of its location on the resonator. A mass-trimming map is developed that identifies a plurality of potential mass-trimming sites on the resonator. A site can be classified as a fine-tuning site or a coarse-tuning site as a function of the degree to which mass removal at those sites affects the resonance frequency. The sites can also be characterized as a function of their position relative to features of the resonator (e. g. , nodal lines, etc. ).

US Patent:

7307496, Dec 11, 2007

Filed:

Oct 19, 2006

Appl. No.:

11/550983

Inventors:

Xiangxiang Huang - Solon OH, US
James D. MacDonald - Rockwall TX, US

International Classification:

H03H 3/007
H03H 3/013

US Classification:

333186, 333188, 333200, 310312

Abstract:

A method for modifying the resonance frequency of a micro-mechanical resonator, and resonators on which the method is practiced. A packaged resonator is trimmed by directing electromagnetic energy to the resonator through a transparent portion of the package. The removal of mass (by the energy) affects the resonance frequency of the resonator in a predictable manner. In some embodiments, the energy is sourced from a femtosecond laser. In some variations of the illustrative embodiment, the amount of mass to be removed is determined as a function of its location on the resonator. A mass-trimming map is developed that identifies a plurality of potential mass-trimming sites on the resonator. A site can be classified as a fine-tuning site or a coarse-tuning site as a function of the degree to which mass removal at those sites affects the resonance frequency. The sites can also be characterized as a function of their position relative to features of the resonator (e. g. , nodal lines, etc. ).

US Patent:

7325968, Feb 5, 2008

Filed:

Jul 17, 2006

Appl. No.:

11/487612

Inventors:

Dwight R. Huckby - Brookpark OH, US
James E. MacDonald - Medina OH, US
John T. O'Brien - Shaker Heights OH, US

Assignee:

The Sherwin-Williams Company - Cleveland OH

International Classification:

B01F 9/02

US Classification:

366209, 220628, 220737

Abstract:

Apparatus and method for mixing a fluid dispersion disposed in a container having either a cylindrical or a square shape. The apparatus includes a holding structure having a retaining structure connected to a base. The retaining structure prevents lateral movement of the container both when the container has a cylindrical shape and when the container has a generally square shape with a width substantially equal to the diameter of the cylindrical shape. The apparatus rotates the container about at least one axis.

US Patent:

7399111, Jul 15, 2008

Filed:

May 9, 2003

Appl. No.:

10/435736

Inventors:

James E. MacDonald - Medina OH, US
Dwight R. Huckby - Brookpark OH, US

Assignee:

The Sherwin-Williams Company - Cleveland OH

International Classification:

B01F 11/00

US Classification:

366110, 366111, 366209, 366605

Abstract:

Apparatus and method for mixing a fluid dispersion disposed in a container. The apparatus includes a table upon which the container may be disposed. A clamp assembly is disposed above the table so as to define a holding space therebetween. The clamp assembly is movable between an uppermost position and a lowermost position, wherein when the clamp assembly is in the uppermost position, the holding space has a maximum height and when the clamp assembly is in the lowermost position, the holding space has a minimum height. At least one blocking structure is disposed between the table and the clamp assembly to limit the downward movement of the clamp assembly and thereby establish the lowermost position of the clamp assembly, wherein the blocking structure is positioned to provide that the minimum height of the holding space is at least 30% of the maximum height of the holding space.

US Patent:

7445373, Nov 4, 2008

Filed:

Oct 30, 2007

Appl. No.:

11/928655

Inventors:

Dwight R. Huckby - Brookpark OH, US
James E. MacDonald - Medina OH, US
John T. O'Brien - Shaker Heights OH, US

Assignee:

The Sherwin-Williams Company - Cleveland OH

International Classification:

B01F 9/22
B01F 11/00

US Classification:

366217, 366605

Abstract:

Apparatus and method for mixing a fluid dispersion disposed in a container having either a cylindrical or a square shape. The apparatus includes a holding structure having a retaining structure connected to a base. The retaining structure prevents lateral movement of the container both when the container has a cylindrical shape and when the container has a generally square shape with a width substantially equal to the diameter of the cylindrical shape. The apparatus rotates the container about at least one axis.