The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 09, 2008
Filed:
Mar. 16, 2007
David M. Melanson, Northampton, MA (US);
Thomas A. Veilleux, Charlton, MA (US);
Vincent J. Simonds, Brimfield, MA (US);
Michael J. Tzivanis, Chicopee, MA (US);
David M. Melanson, Northampton, MA (US);
Thomas A. Veilleux, Charlton, MA (US);
Vincent J. Simonds, Brimfield, MA (US);
Michael J. Tzivanis, Chicopee, MA (US);
Callaway Golf Company, Carlsbad, CA (US);
Abstract
A process for reaction injection molding a polyurethane material for a layer of a golf ball is disclosed herein. The layer is preferably a cover for the golf ball. The process discloses preferred pressure parameters and mass flow parameters for reaction injection molding the layer. Such preferred pressure parameters include the difference from mix-head open to the shot mid-point, ΔΔPom, and the pressure difference from mix-head open to close, or ΔΔPoc. The mass flow parameters include the percentage change in mass flow ratio from mix-head open to shot mid-point, or % MFRom, and the change in mass flow ratio from mix-head open to shot mid-point, or ΔMFRom.