Seal for a joint or juncture – Seal between fixed parts or static contact against... – Contact seal for a pipe – conduit – or cable
Reexamination Certificate
1999-11-30
2001-06-05
Knight, Anthony (Department: 3626)
Seal for a joint or juncture
Seal between fixed parts or static contact against...
Contact seal for a pipe, conduit, or cable
C040S410000
Reexamination Certificate
active
06241255
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to water sealing transmission mechanism fastened to the neck of a water container on a base to seal the water container in a watertight condition, and driven by a motor drive in the base to stir up a liquid in the water container.
There is known a motion display toy, which comprises a base holding a motor drive, a water container mounted on the base and holding a liquid and ornamental chips in the liquid, and a transmission mechanism driven by the motor drive to rotate a figure in the liquid inside the water container. In order to keep the water container in a watertight condition, a water-sealing member is fastened to the mouth of the water container and mounted around the output shaft of the transmission mechanism. The water sealing member blocks up the mouth of the water container. This structure of water sealing member is expensive. Further, the water-sealing member wears quickly with use. When the water-sealing member starts to wear, it cannot keep the water container in a perfect watertight condition.
SUMMARY OF THE INVENTION
The present invention has been accomplished to provide water sealing transmission mechanism for a motion display toy, which eliminates the aforesaid drawbacks. According to one aspect of the present invention, the water sealing transmission mechanism is fastened to the neck of a water container on a base to seal the water container in a watertight condition, and driven by a motor drive in the base to stir up a liquid in the water container, the water sealing transmission mechanism comprising a rubber packing member fastened to the neck of the water container, a holder mounted in the rubber packing member, the holder having a hollow center post, a transmission shaft mounted in the hollow center post and coupled to the motor drive in the base, a rotary barrel mounted in the receiving chamber in the holder for synchronous rotation with the transmission shaft, the rotary barrel having radial blades for stirring up the liquid in the water container, and a carrier fixedly mounted on the holder and spaced above the rotary barrel to hold ornamental means in the liquid in the water container. According to another aspect of the present invention, magnets are reversely provided at the transmission shaft and the rotary barrel to produce a magnetic force of attraction between the rotary barrel and the transmission shaft, enabling the rotary barrel to be synchronously rotated with the transmission shaft.
REFERENCES:
patent: 4757986 (1988-07-01), Hwang et al.
patent: 4852283 (1989-08-01), Teng
patent: 4961276 (1990-10-01), Lin
patent: 5711099 (1998-01-01), Nesbit et al.
patent: 5875577 (1999-03-01), Lu
patent: 5983541 (1999-11-01), Shih
patent: 6061937 (2000-05-01), Meng
A & J
Knight Anthony
Pickard Alison K.
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