Amusement devices: toys – Aerodynamically supported or retarded – Spinning disc
Patent
1994-06-27
1999-02-09
Hafer, Robert A.
Amusement devices: toys
Aerodynamically supported or retarded
Spinning disc
446486, A63H 2700
Patent
active
058685979
DESCRIPTION:
BRIEF SUMMARY
2. Technical Field of Invention
The present invention relates to aerodynamic toys.
3. Background of Art
The closest known art are include below.
UK patent 1,268,431 discloses a symmetric gel ball.
U.S. Pat. No. 5,026,054 discloses a highly plasticized polymeric symmetric shaped annular core enclosed in a flexible polymer shell and further encased in a stretchable fabric cuter cover.
U.S. Pat. Nos. 4,369,284 and 4,618,213 discloses gel compositions and gel articles including gel optical lens.
U.S. Pat. No. 4,737,128 discloses a (concave top shape and convex bottom shape) airfoil resilient enough so that when resting on a horizontal surface, its outer annular edge will be able to support the entire airfoil without the airfoil's interior portion touching the horizontal surface on which it rests.
A gel ring for looping over the thumb and pulled back on the other end can be shot like a rubber band and routinely achieve shots of 25 to 30 feet is available from Applied Elastomerics, Inc., of Pacifica, Calif. under the tradename "SMARTRING".
Disclosure of Invention
2. Statement of Invention
SUMMARY OF THE INVENTION
I have unexpectedly discovered novel aerodynamic toys comprising a camber defined by a profile in the shape of an airfoil made from an ultra-soft, ultra-elastic gel; said airfoil having one or more preselected holes forming a communicating surface between a upper surface and a lower surface, optionally, said airfoil having one or more preselected holes and cavities, one or more preselected holes and slots, one or more preselected cavities and slots, or one or more preselected cavities, or slots; said airfoil is made from a gel including a gel comprising a high viscosity poly(styrene-ethylene-butylene-styrene), optionally, in combination with one or more homopolymers or copolymers.
The ability of the gel airfoils to perform various aerodynamic effects including sustained flight under varying wind conditions without turn over is totally unexpected.
The various aspects and advantages of the invention will become apparent to those skilled in the art upon consideration of the accompanying disclosure and the drawings.
2a. FIGURES
DESCRIPTION OF THE DRAWINGS
FIG. 1a. Representative static view of a spinning airfoil (at an elongation of at least 200%) showing various geometrical variables.
FIG. 1b. Representative normal view of the airfoil of FIG. 1a (at zero elongation) showing various geometrical variables.
FIG. 2. Line view of selected examples of mean camber lines of airfoils of the invention.
FIG. 3. Side view of various representative profile cross section imprint tracings of airfoils of the invention including an imprint of one of the airfoils at an elongation greater than 200%.
FIG. 4. Representative sectional views of shaped airfoils with holes, cavities, and slots.
FIG. 5. Representative sectional views of various shaped airfoils with more than one gel regions.
FIG. 6. More representative sectional views of shaped airfoils with holes, cavities, and slots.
FIG. 7. Bottom view of airfoils showing a hole centered through a cavity (shown in black).
FIG. 8. Cross sectional view of membrane airfoils with hole and top view of membrane airfoils with one or more holes.
FIG. 9a. Representative cross sectional view of spherical shaped airfoil with two gel regions.
FIG. 9b. Cross sectional view of FIG. 9a airfoil resting on a support.
FIG. 10. Cross sectional views of airfoils with foam layers.
MODES FOR CARRYING OUT THE INVENTION
The airfoils of the present invention are not limited to any particular aerodynamic profile (see FIGS. 1-10), although certain profiles may have advantages over others such as for speed, distance, climb, stall, return, etc. The basic principles of aerodynamic and airfoil design can be utilized to assist in selecting and forming the profiles of the ultra-soft, ultra-elastic gel airfoils of the invention. In designing the airfoils of the invention, Bernoulli's principle should be kept in mind, in simple words: in a nonviscous flow a deceleration is accompanied by a rise in pressu
REFERENCES:
patent: 4255893 (1981-03-01), Anderson et al.
patent: 4737128 (1988-04-01), Moormann et al.
patent: 4846757 (1989-07-01), McMurray
patent: 5655947 (1997-08-01), Chen
Applied Elastomerics, Inc.
Carlson Jeffrey D.
Hafer Robert A.
LandOfFree
Ultra-soft, ultra-elastic gel airfoils does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Ultra-soft, ultra-elastic gel airfoils, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ultra-soft, ultra-elastic gel airfoils will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1944788