Acushnet Company

Jose G Perez

Terrill R McCabe

Mike Steve Bujdos

A wax pattern mold and molding process are disclosed for forming a wax pattern of a hollow, thin walled object, in particular, a golf club head. A mold is provided in at least two halves defining a mold cavity. A core made up of a plurality of interfitted parts is placed in the mold to precisely define the thin walls. The core and mold are provided with a registration channel such that the core is properly registered in the cavity to ensure dimensional integrity of the thin walls. Pins, holes, slots, and fingers are provided to lock the core parts together while the wax pattern is formed and to permit the core parts to be disassembled through an opening in the mold without separating the mold halves.

Wax pattern mold with stripable core

A golf club head includes a plurality of exterior walls which define a hollow interior cavity. The golf club head further includes an interior wall structure extending from one of the walls into the interior cavity. The interior wall structure defines a chamber therein. The chamber contains a flowable weighted material and a lighter weight flowable filler material. Both the weighted and the filler materials can be inserted and removed from the chamber through an aperture in the wall.

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Carlsbad, CA, United States of America

Jose G Perez