Plastic article or earthenware shaping or treating: apparatus – Distinct means to feed – support or manipulate preform stock... – Opposed registering coacting female molds
Reexamination Certificate
2006-12-19
2006-12-19
Lee, Edmund H. (Department: 1732)
Plastic article or earthenware shaping or treating: apparatus
Distinct means to feed, support or manipulate preform stock...
Opposed registering coacting female molds
C264S162000, C264S279100, C264S320000, C264S161000, C425S408000
Reexamination Certificate
active
07150618
ABSTRACT:
A mold for a golf ball includes an upper portion (1) and a lower portion (3). A large number of projections (7) for dimple formation are provided on a cavity surface (5) of each of the upper portion (1) and the lower portion (3). A parting surface (8) of the upper portion (1) and the lower portion (3) has a concavo-convex shape. The parting surface (8) includes a first horizontal plane (13), a second horizontal plane (15) and an inclined surface (17). Circumferential central angles φ of the first horizontal plane (13) and the second horizontal plane (15) are 55 degrees or less. A total value Σφ of the circumferential central angles φ is 30 degrees to 330 degrees. An inclination angle α of the inclined surface (17) to a horizontal direction is 10 degrees to 60 degrees. A central angle θ between the horizontal planes (13) and (15) and an equator (E) is 1 degree to 8 degrees. A boundary corner portion of the horizontal planes (13) and (15) and the inclined surface (17) is subjected to rounding.
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Endo Seiichiro
Sajima Takahiro
Birch & Stewart Kolasch & Birch, LLP
Lee Edmund H.
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