Self-righting training cup

Details Self-righting training cup Self-righting training cup

1981-11-25

1983-06-21

Lowrance, George E.

Receptacles

Outlet or junction box type

Sectional receptacle

220 69, 220 904, 215 1R, A47G 1922

Patent

active

043889964

ABSTRACT:
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.

REFERENCES:
patent: 441155 (1890-11-01), Gross
patent: 2601767 (1952-07-01), Wall
patent: 3549044 (1970-12-01), Lerner
patent: 3966077 (1976-06-01), Jardine
patent: 4096966 (1978-06-01), Korshak
patent: 4303170 (1981-12-01), Panicer

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