David L Griffus, Age 668411 Belle Bluff Dr, Grand Blanc, MI 48439
David Griffus Phones & Addresses
Grand Blanc, MI
Grayling, MI
Chicago, IL
Mentions for David L Griffus
Publications & IP owners
Us Patents
Method Of Producing Matched Coating Composition And Device Used Therefor
US Patent:
7466415, Dec 16, 2008
Filed:
May 6, 2004
Appl. No.:
10/552200
Inventors:
Mark Alan Gibson - Bloomfield Township MI, US
David Lee Griffus - Grand Blanc MI, US
Allan Blase Joseph Rodrigues - Bloomsfield Hills MI, US
Michelle Grace Ward - Troy MI, US
David Lee Griffus - Grand Blanc MI, US
Allan Blase Joseph Rodrigues - Bloomsfield Hills MI, US
Michelle Grace Ward - Troy MI, US
Assignee:
E.I. du Pont de Nemours & Company - Wilmington DE
International Classification:
G01J 3/46
US Classification:
356402
Abstract:
The present invention is directed to a method and device that use spectral measurements of the color of a target coating on a substrate, such as auto body being matched. The method utilizes pigment mixture models to produce a matched coating composition that when applied as a coating matches in appearance with that of the target coating, while also providing other desired coating properties, such as durability, gloss and adhesion. The method of the present invention is well suited for producing automotive refinish paints used in automotive refinish applications wherein the undamaged portion of the autobody is color matched to produce a matched refinish paint that can be then applied over a repaired portion of autobody.
Color Sample Holder To Enhance Repeatability Of Instrumental Color Readings
US Patent:
2004000, Jan 8, 2004
Filed:
Jul 2, 2002
Appl. No.:
10/187544
Inventors:
David Griffus - Grand Blanc MI, US
Allan Rodrigues - Bloomfield Hills MI, US
Allan Rodrigues - Bloomfield Hills MI, US
International Classification:
G01J003/50
US Classification:
356/402000, 356/244000
Abstract:
An apparatus for holding a generally flat color sample in a plurality of fixed and repeatable positions in proximity with the optics of a portable color instrument with a uniform and repeatable force. The apparatus has a platform upon which the portable color instrument is secured, a sample stage with multiple index planes upon which a color sample is placed, and a device which urges a pressure foot against the color sample, thereby holding the color sample in position on the stage with a uniform and repeatable force.
Method For Coating Measurement
US Patent:
2012022, Sep 6, 2012
Filed:
Oct 15, 2010
Appl. No.:
13/509917
Inventors:
Larry Eugene Steenhoek - Wilmington DE, US
Allan Blase Joseph Rodrigues - Bloomfield Hills MI, US
Gerard T. Brosmer - Wilmington DE, US
David Lee Griffus - Grand Blanc MI, US
Allan Blase Joseph Rodrigues - Bloomfield Hills MI, US
Gerard T. Brosmer - Wilmington DE, US
David Lee Griffus - Grand Blanc MI, US
Assignee:
E. I. DU PONT DE NEMOURS AND COMPANY - Wilmington DE
International Classification:
C23C 16/52
B32B 33/00
B32B 33/00
US Classification:
427 8, 428 418
Abstract:
The present invention is directed to a method for obtaining characteristics of a target coating layer. Specifically, a clearcoat layer is provided over a target coating layer for measuring color and appearance characteristics of the target coating. The clearcoat layer can comprise materials from renewable resources, The present invention is also directed to a system for obtaining characteristics of the target coating layer.
Process For Displaying And Designing Colors
US Patent:
2014025, Sep 11, 2014
Filed:
Oct 28, 2012
Appl. No.:
14/350624
Inventors:
- Wilmington DE, US
David Lee Griffus - Grand Blanc MI, US
Mary C. Slayton - White Lake MI, US
David Lee Griffus - Grand Blanc MI, US
Mary C. Slayton - White Lake MI, US
International Classification:
G09G 5/02
US Classification:
345690
Abstract:
The present disclosure is directed to a system for displaying and designing one or more colors on digital display devices, non-digital display media, or a combination thereof. The system can comprise one or more comparative colors, background colors, or a combination thereof for improved color visual comparison. The system can be used for comparing and selecting colors, such as for use in fashion color designs, automotive color designs, architecture color designs, appliance color designs, or a combination thereof. This disclosure is further directed to a kit and a method for displaying and producing one or more colors.
Systems And Methods For Coating Measurement
US Patent:
2014012, May 8, 2014
Filed:
Jan 14, 2014
Appl. No.:
14/154360
Inventors:
- Wilmington DE, US
Allan Blase Joseph RODRIGUES - Bloomfield Hills MI, US
Gerard T. BROSMER - Wilmington DE, US
David Lee GRIFFUS - Grand Blanc MI, US
Allan Blase Joseph RODRIGUES - Bloomfield Hills MI, US
Gerard T. BROSMER - Wilmington DE, US
David Lee GRIFFUS - Grand Blanc MI, US
International Classification:
G01N 33/32
G01N 21/25
G01N 21/25
US Classification:
427 8, 428 401, 428 404, 428 409, 428 413, 428 406, 428 421, 428 416, 356402, 4273722
Abstract:
Methods and systems for coating measurements are provided. A system for obtaining characteristics of a target coating layer include a clearcoat layer having a first surface and a second surface. A removable front support layer has an upper surface and a lower surface, where the lower surface is affixed over at least a portion of the second surface of the clearcoat layer. A back support layer has an inner surface and an outer surface, and at least a portion of the inner surface includes an adhesive layer. A separation layer is affixed over at least a portion of the adhesive layer, and the separation layer is removable from the adhesive layer.
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