Crystal gel airfoils with improved tear resistance and gel airfo

Details Crystal gel airfoils with improved tear resistance and gel airfo Crystal gel airfoils with improved tear resistance and gel airfo

1997-08-12

2000-04-18

Lilling, Herbert J.

Amusement devices: toys

Aerodynamically supported or retarded

Spinning disc

446 48, 446486, A63H 2700

Patent

active

06050871&

ABSTRACT:
A novel aerodynamic toy comprising a camber defined by one or more inner or outer parameter gel profile(s) in the shape of an airfoil made from an elastic, tear resistant, crystal gel with or without one or more outer parameter gel profile(s) having a connective thin gel membrane, said gel membrane having one or more preselected holes therethrough. The airfoils of the invention exhibits excellent flight stability and no turnover.

REFERENCES:
patent: 4737128 (1988-04-01), Moormann et al.
patent: 5026054 (1991-06-01), Osher et al.
patent: 5324222 (1994-06-01), Chen
patent: 5655947 (1997-08-01), Chen
patent: 5868597 (1999-02-01), Chen

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