Toy

Details Toy Toy

1986-05-02

1988-04-12

Hafer, Robert A.

Amusement devices: toys

Having permanent magnet

For operating valve, switch, or clutch

446485, 446303, 446295, A63H 328, A63H 3326

Patent

active

047371315

ABSTRACT:
In a toy, an image of expanding and contracting heart (309',311') is produced by a separate generator (207), or in response to sensing a pulse beat of a child by a sensor (3,403,405), or in response to sensing at least one parameter of environment by environment sensors (511-513).

REFERENCES:
patent: 1900353 (1933-03-01), Marchetti
patent: 2668689 (1954-09-01), Christopher
patent: 3184886 (1965-05-01), Weih
patent: 3298132 (1967-01-01), Elwell
patent: 3514899 (1970-06-01), Bonanno et al.
patent: 3538639 (1970-10-01), Tomaro
patent: 3665087 (1972-05-01), Poylo
patent: 4155196 (1979-05-01), Bollinger et al.
patent: 4264904 (1981-04-01), McCoy et al.
patent: 4303946 (1981-12-01), Berry
patent: 4601668 (1986-07-01), Sirota
patent: 4605380 (1986-08-01), Camm et al.

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