Spinning top
OwnerDale L. Bellinventor
Life of this patent
Estimating the term…
Abstract
A spinning top including a hollow body having a vertical spin axis and including an upper and a lower body portion rigidly connected together directly or preferably interconnected by a weighted annular ring for increased rotational inertia. A replaceable pointed tip is connected to the lower end of the lower body portion for free rotation only with respect to the body, the pointed tip engaging against a support surface when the body is in spinning motion. A second bearing-mounted pointed tip may be releasably connected concentric with the spin axis and upwardly extending from an upper end of the upper body portion whereby the spinning top may be lifted from one support surface and placed onto another support surface without interrupting spinning motion of the top.
Claims4
A spinning top comprising:
- a hollow body having a vertical spin axis and including an upper and a lower body portion and an annular ring positioned between and rigidly interconnecting said upper and lower body portions together;
- said lower body portion having a longitudinal aperture or recess formed concentric with said spin axis at a lower end of said lower body portion;
- a replaceable pointed tip connected to said aperture or recess for free rotation only with respect to said body, said pointed tip engaging against a support surface while said body is in spinning motion;
- said annular ring formed of material having a density substantially greater than that of said upper and lower body portions to provide substantially increased rotational inertia of said spinning top.
A spinning top comprising:
- a hollow body having a vertical spin axis and including an upper and a lower body portion and an annular ring positioned concentrically with said spin axis between and rigidly interconnecting said upper and lower body portions together;
- said lower body portion having a longitudinal aperture or recess formed concentric with said spin axis at a lower end of said lower body portion;
- a tip assembly concentric with said spin axis and including a replaceable pointed tip releasably connected to an intermediate tip member, and a mounting shaft connected between said intermediate tip member and said aperture or recess for free rotation only with respect to said mounting shaft, said pointed tip engaging against a support surface while said body is in spinning motion;
- said annular ring formed of material having a density substantially greater than that of said upper and lower body portions to provide substantially increased rotational inertia of said spinning top.
Dependencies are inferred from the claim text.