Aquarium crib toy
US4223471A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 13, 1978 |
| Grant date | Sep 23, 1980 |
| Priority date | — |
| Expiry date | Dec 13, 1998 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63H23/10
- WIPO fieldFurniture, games
- WIPO sectorOther fields
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 manne…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.