Title:
TENNIS BALL
Document Type and Number:
Japanese Patent JPS5314040
Kind Code:
A
Abstract:
A tennis ball conforming to the 1968 regulation of the International Federation of Lawn Tennis comprises a hollow elastic core and an improved cover bonded to the core by an adhesive mixture. The cover has a specific weight less than 0.22 g/cm3 and includes a proportion of relatively thick monofilament fibers such that the percentage-weighted average denier size of all fibers in the cover is at least 18. The cover improves the playing characteristics and the effective life of the ball.
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| JPH0596029 | JOINT OF BALL |
Inventors:
FURANSOWA RUNE RAKOSUTO
FURANSOWAAZU MARII ANRIETSUTO
FURANSOWAAZU MARII ANRIETSUTO
Application Number:
JP7290777A
Publication Date:
February 08, 1978
Filing Date:
June 21, 1977
Export Citation:
Assignee:
PATENTEX SA
International Classes:
A63B39/06; A63B41/00; A63B41/08; (IPC1-7): A63B39/06
Domestic Patent References:
| JP38001074A |