Mold-half
AssigneeAcushnet Company
InventorsThomas L. Mydlack, Mark Roger Verronneau
Life of this patent
Estimating the term…
Abstract
The present invention is an improved mold-half that is useful in forming golf ball covers or other layers. The mold-half is particularly useful for compression molding a thin polyurethane cover over a golf ball formed from a plurality of inner layers. The mold-half includes a cavity and a land area surrounding the cavity. The land area has an upper surface and at least one vent in fluid connection with the cavity via a chamber formed by a recessed circumferential ledge adjacent the cavity. The ledge controls the flow of excess layer material from the cavity to each vent.
Claims25
A mold-half for forming a golf ball layer of a material comprising:
- a cavity;
- a land area surrounding the cavity, the land area having an upper surface and at least one vent defined in the upper surface spaced from the cavity;
- and
- a circumferential ledge adjacent the cavity and each vent, wherein the circumferential ledge is recessed from the upper surface of the land area.
A mold-half for forming a golf ball layer of a material comprising:
- a cavity;
- a land area surrounding the cavity having at least six vents radially disposed therein and spaced from the cavity, wherein the land area is interrupted only by the vents;
- and
- a circumferential ledge adjacent the cavity and each vent, and the length of the ledge is substantially narrower than the length of the upper surface of the land area.
A mold for forming a layer of material around a golf ball subassembly comprising a pair of mold-halves, each mold-half comprising:
- a hemispherical cavity;
- a land area surrounding the cavity having an upper surface and at least one vent defined in the upper surface spaced from the cavity;
- and
- a recessed circumferential ledge adjacent the cavity and each vent.
A mold for forming a layer of material around a golf ball subassembly comprising:
- a pair of mold-halves, each mold-half comprising:
- a hemispherical cavity;
- a land area surrounding the cavity having an upper surface and at least one vent disposed therein, wherein the land area is interrupted only by the at least one vent;
- and
- a circumferential ledge adjacent the cavity,
- wherein the upper surface of one land area is configured to mate with the opposing land area of the pair.
Dependencies are inferred from the claim text.