Back to results
US RE34,614 EGranted
Bowling ball
OwnerJoseph A. Gentiluomoinventor
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
OwnerJoseph A. Gentiluomoinventor
Estimating the term…
A bowling ball wherein the weights of the inner core and the encapsulating mass are varied through the use of materials of preselected densities, for the purpose of manufacturing balls having a low moment of inertia. The instant invention accomplishes this by featuring an inner core having a minimum specific gravity of 0.1063 per pound of ball weight, and a construction wherein the volume ratio of the inner core to that of the encapsulating mass, in conjunction with the specific gravity ratio of the inner core to that of the encapsulating mass, yields a [maximum] low moment of inertia [(about the ball's vertical axis) of 0.318 in-ozs-sec.sup.2 per pound of ball weight]. As the moment of inertia of a fixed weight ball is decreased, the translational kinetic energy increases and the rotational kinetic energy decreases. However, since the translational kinetic energy increases at a greater rate than the rate at which the rotational kinetic energy decreases, the resulting effect is an increase in total kinetic energy output. An additional increase in total kinetic energy output is obtained through use of a high density top weight mass concentrated closely around the ball's inner core[, with its lower surface positioned at the midplane of the ball].
A bowling ball, comprising:
[2. The bowling ball defined in claim 1, wherein said molded encapsulating mass is further characterized as a cover.]
[3. The bowling ball defined in claim 2, further characterized as including
[4. The bowling ball defined in claim 3, wherein said top weight mass is further characterized as being integral to said inner core.]
[5. The bowling ball defined in claim 4, wherein said top weight mass is further characterized as being annular in shape.]
[6. The bowling ball defined in claim 5, wherein said inner core is further characterized as (spherical in shape) having a minimum volume of 14.137 cubic inches.]
[7. The bowling ball defined in claim 1, wherein said inner core minimum specific gravity per pound of ball weight, is further characterized as being increased by the amount of 0.0187, to a value of 0.1250.]
[8. The bowling ball defined in claim 1, wherein said inner core minimum specific gravity per pound of ball weight, is further characterized as being increased by the amount of 0.03745, to a value of 0.14375.]
[9. The bowling ball defined in claim 1, wherein said inner core minimum specific gravity per pound of ball weight, is further characterized as being increased by the amount of 0.0562, to a value of 0.1625.]
[10. The bowling ball defined in claim 1, wherein said inner core minimum specific gravity per pound of ball weight, is further characterized as being increased by the amount of 0.0812, to a value of
[11. The bowling ball defined in claim 1, wherein said inner core minimum specific gravity per pound of ball weight, is further characterized as being increased by the amount of 0.1062, to a value of 0.2125.]
[12. A bowling ball, comprising:
[13. The bowling ball defined in claim 12, further characterized as including top weight mass.]
[14. The bowling ball defined in claim 13, wherein said top weight mass is further
[15. The bowling ball defined in claim 14, wherein said top weight mass is further characterized as being annular in shape.]
[16. The bowling ball defined in claim 15, wherein said inner core is further characterized as spherical in shape.]
[17. A bowling ball having (a top) weight mass positioned (such as) to effectuate a decrease in ball moment of inertia, comprising:
[18. The bowling ball defined in claim 17, wherein said molded encapsulating mass is further characterized as a cover.]
[19. The bowling ball defined in claim 18, wherein said annular shaped weight mass is further characterized as having its lower surface located at the midplane of the ball.]
[20. The bowling ball defined in claim 19, wherein said inner core is further characterized as being spherical in shape.]
[21. The bowling ball defined in claim 17, wherein said molded encapsulating mass is further characterized as
[22. The bowling ball defined in claim 21, wherein said annular shaped weight mass is further characterized as having its lower surface located at the midplane of the ball.]
[23. The bowling ball defined in claim 22, wherein said inner core is further characterized as being spherical in shape.]
A bowling ball, comprising:
A bowling ball, comprising:
A bowlinct ball having weight mass positioned to effectuate a decrease in ball moment of inertia, comprising:
Dependencies are inferred from the claim text.