Anticorrosion separator for wood deck fasteners

US7257930B2 · kind B2 · utility

Assignee

• W.R. Grace & Co.-Conn. · US

Inventors

• Antonio J. Aldykiewicz, Jr. · Lexington, US
• Gerald L. Blay · Chelmsford, US
• Gregory N. Ciampa · Portsmouth, US
• Ann M. Jansen · Belmont, US
• Edwin C. Schaughency · Pasadena, US
• Lawrence Shapiro · Mansfield, US
• Albina N. Velikin · Cambridge, US
• Walter W. Wydra · Itasca, US

Key dates

• Filing date: Dec 15, 2003
• Grant date: Aug 21, 2007
• Expiry date: May 23, 2024

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/28
• WIPO field: Civil engineering
• WIPO sector: Other fields

Abstract

Exemplary methods and assemblies for preventing corrosion of metal connector devices, e.g., zinc-galvanized joist hangers and fasteners, used for assembling outdoor structures such as decks from wood components pretreated with alkaline copper quat (ACQ), ammoniacal copper quat (ACQ-B), copper azole (CA), or mixtures thereof. Membrane barriers separate metal from wood, and seal around fasteners thus minimizing corrosion of the connector devices and fasteners.