초록 ▼

A weighted self-righting training cup comprises a lower hemispherical portion having a flat to define the cup bottom and an upper portion, the ratio of the diameter of the cup at the intersection of the upper and lower portions to the effective height of the upper portion determining the minimum amo

A weighted self-righting training cup comprises a lower hemispherical portion having a flat to define the cup bottom and an upper portion, the ratio of the diameter of the cup at the intersection of the upper and lower portions to the effective height of the upper portion determining the minimum amount of weight necessary to make the cup consistently self-right when tipped over while being filled or partially filled with liquid.

대표청구항 ▼

A self-righting cup having a lower portion and an upper portion, said lower wall portion having a flat defining the bottom of said cup and a rounded sidewall extending upwardly therefrom, said upper portion having a sidewall which extends upwardly from said rounded sidewall of said lower portion, th

A self-righting cup having a lower portion and an upper portion, said lower wall portion having a flat defining the bottom of said cup and a rounded sidewall extending upwardly therefrom, said upper portion having a sidewall which extends upwardly from said rounded sidewall of said lower portion, the ratio of the outer diameter of said cup at the point of intersection of said upper and lower portions to the effective height of said upper portion being at least 3 and the base of said cup having a weighting member the weight of which is effective in relation to said ratio to cause consistent self-righting of said cup when tipped.