Amusement devices: toys – Having means for forming transitory bubble
Patent
1997-03-11
1999-09-07
Hafer, Robert A.
Amusement devices: toys
Having means for forming transitory bubble
446153, 446 19, 137217, 137541, 137854, 119254, 12820029, A63H 3328, A63H 2300, F16K 1500
Patent
active
059477849
ABSTRACT:
A device that produces toroidal bubbles of gaseous fluid when operated in immersed relation to a body of liquid fluid. A first embodiment is operated by a person who blows into a first end of the device with a short burst of air, and a second embodiment is operated by a pneumatic pump that delivers a short burst of air to the first end. A normally closed valve such as a poppet valve is positioned on a second end of the device. The valve opens and closes very rapidly in response to the burst of air. Air escaping around the peripheral border of the valve creates a toroidal bubble that expands in volume as it approaches the surface of the liquid fluid; the effect is visually pleasing. The valve of the device may also be held in the mouth, eliminating the conduit. In additional embodiments, the source of gaseous fluid is any pneumatically-charged device.
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Fossum Laura
Hafer Robert A.
Smith Ronald E.
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