US 4,223,471 AGranted

Aquarium crib toy

AssigneeShelcore, Inc.

InventorSheldon Greenberg

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Abstract

An amusement device for infants, babies and small children, especially intended to be mounted to a side wall of a crib. The device includes a transparent enclosure which in practice is filled with a liquid, and which contains at least one movable object such as a sphere or a simulation of a fish. The density of the object or objects is greater than the density of the liquid. A flexible resilient bellows extends from the lower end of the enclosure and a liquid transmission pipe or nozzle extends between the enclosure and the bellows. The bellows may be manually expanded by the infant or child, so that a body of the liquid is drawn from the enclosure into the bellows. A spring extends from the bellows to a lower fixed mounting, so that when the bellows is manually expanded, the spring is compressed against the lower fixed mounting and urges the bellows to an idle contracted shape, so that liquid is expelled from the bellows into the enclosure when the child releases the bellows expansion element. Thus, the expelled liquid agitates and circulates the liquid in the enclosure, so that the object or objects in the enclosure move about within the body of liquid in the enclosure in a manner pleasing and amusing to the child, baby or infant, who can readily see the motion of the objects through the transparent wall of the enclosure.

Claims9

Dependent claims

An amusement device comprising a transparent enclosure for containing a liquid, at least one movable object within said enclosure, the density of said object being greater than the density of said liquid, a flexible resilient bellows, said bellows depending from said enclosure, means for transmitting said liquid between said enclosure and said bellows, means to manually expand said bellows, so that a body of said liquid is drawn from said enclosure into said bellows, compressing spring means, said spring means depending from said bellows and having a lower fixed mounting, so that when said bellows is manually expanded, said spring means is compressed against said lower fixed mounting and urges said bellows to an idle contracted shape, whereby liquid is expelled from said bellows into said enclosure, when said manual means to expand said bellows is released, and a movable piston, one end of said bellows being mounted to the head of said movable piston, so that said movable piston coaxially depends from said bellows, said spring means being concentrically disposed about the rod of said movable piston and extending between the head of said movable piston and said lower fixed mounting, said rod slidably extending through an opening in said lower fixed mounting of said spring means to flexible means for displacing said movable piston away from said enclosure, said piston and said flexible displacement means constituting said means to manually expand said bellows, the head of said movable piston being of greater dimension than the opening in said lower fixed mounting of said spring means.

Dependencies are inferred from the claim text.