Toy submarine ballast system

Details Toy submarine ballast system Toy submarine ballast system

1997-05-19

1999-02-02

Hafer, Robert A.

Amusement devices: toys

Aquatic

Including remote control means or tether

446158, 446161, 114333, 441 29, A63H 2304, A63H 2308, B63G 822, B63B 2220

Patent

active

058656634

ABSTRACT:
A ballast system for toy submarines comprises a plumbing device, a flexible bag, a piece of wire and a rod. The ballast system draws water in and forces water out by decompressing and compressing the flexible bag.

REFERENCES:
patent: 754222 (1904-03-01), Lake
patent: 3943869 (1976-03-01), Frechette
patent: 4187796 (1980-02-01), Ess
patent: 4448409 (1984-05-01), Kaga et al.
patent: 5484411 (1996-01-01), Inderbitzen et al.

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