Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1990-10-15
1991-11-05
Weston, Caleb
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
156155, 156245, 156292, 156500, 273 58B, 273 58J, 273 61C, B29C 3552
Patent
active
050629123
ABSTRACT:
A seamless hollow rubber core for a tennis ball is formed within a spherical cavity of a mold, wherein the spherical cavity has a diameter commensurate with the outside diameter of the core. A spherical surface is formed from a material which has a melting temperature above the curing temperature of the rubber compound used for the core. The spherical surface is dimensioned commensurately with the inside diameter of a core. The spherical surface is then mounted within the mold concentrically with the spherical cavity. Unsured rubber core preforms are placed about the spherical surface in intimate contact with the spherical cavity. The core performs are then heated to a curing temperature. During the curing process, the preforms meld to form the seamless core. The core just formed is then heated to the melting temperature of the material of the spherical surface so that the spherical surface melts thereby leaving molten within the core. The molten material may then be removed from the inside of the core such as by draining it through a small orifice formed therein.
REFERENCES:
patent: 720482 (1903-02-01), Richards
patent: 1969128 (1934-08-01), Harrison
patent: 2294424 (1942-09-01), Roberts
patent: 2453143 (1948-11-01), Lejeune
patent: 2706514 (1955-04-01), Anderson
patent: 2786007 (1957-03-01), Chew
patent: 3424226 (1969-01-01), Steele
patent: 3907949 (1975-09-01), Carlson
patent: 3921953 (1975-11-01), Diener
patent: 4239568 (1980-12-01), Takazawa
patent: 4853057 (1989-08-01), Hoffmann
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