KATHRYN EVANS, MSW
Social Work at Burnet Ave, Cincinnati, OH
License number
Ohio 4921
Category
Social Work
Type
Clinical
License number
Ohio I.1200628
Category
Social Work
Type
Social Worker
Address
Address
3333 Burnet Ave, Cincinnati, OH 45229
Phone
(513) 636-4788
(513) 636-4283 (Fax)
(513) 636-4283 (Fax)
Professional information
Method Of Chemical Pretreatment Of A Lightweight Jet Engine Fan Blade
US Patent:
6544002, Apr 8, 2003
Filed:
Nov 7, 2001
Appl. No.:
10/039394
Inventors:
Charles Richard Evans - Cincinnati OH
Kathryn Ann Evans - Cincinnati OH
Wendy Wen-Ling Lin - Niskayuna NY
Mark Alan Rosenzweig - Hamilton OH
Jeffrey Lynn Schworm - Delanson NY
Kathryn Ann Evans - Cincinnati OH
Wendy Wen-Ling Lin - Niskayuna NY
Mark Alan Rosenzweig - Hamilton OH
Jeffrey Lynn Schworm - Delanson NY
Assignee:
General Electric Company - Schenectady NY
International Classification:
F01D 528
US Classification:
416224, 416233, 416229 A, 416241 A, 428613, 428469, 428408, 298892
Abstract:
A grit blasting and alkaline etch surface pretreatment that is applied to a metallic airfoil. The metallic airfoil includes pockets or cavities that have been fabricated into the airfoil to reduce the weight of the airfoil. The pretreatment includes grit blasting the surface of the pockets or cavities, followed by washing the airfoil and treating the airfoil in an alkaline etch bath. After any remaining solution from the bath is neutralized and within twenty-four hours of the end of the pretreatment, primer is applied to the surface of the pockets or cavities. After the primer is applied to the surface of the pockets, a lightweight resin is injected into the pockets and bonds to the primer forming a mechanical bond with good fracture toughness at elevated temperatures.