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US 4,288,072 AGranted
Illusion creating device
OwnerWilliam Gewirtzinventor
Life of this patent
Estimating the term…
Abstract
An illusion creating device comprises a support structure having a support edge encircling an aperture and a flat element. An elastic membrane is supported on the support edge and is stretched over the flat element to a degree wherein a supporting segment of the membrane underlies a portion of the element and supports it. The flat element is viewable through the membrane so as to appear to be disposed on top of the membrane. Pressing the stretched membrane over the flat element causes the element to be released from the membrane, thereby creating the illusion that the flat element passed through the membrane.
Claims9
An illusion creating device comprising:
- a. a support structure having a support edge encircling an aperture;
- b. a rigid flat element smaller in diameter than the diameter of said aperture;
- and
- c. an elastic membrane means being supported on said support edge and being stretched over said flat element to a degree wherein a supporting segment of said membrane underlies at least a portion of said element and supports the same, said element being viewable through said membrane so as to appear to be disposed on top of said membrane and said aperture whereby pressing said stretched membrane means over said flat element causes said element to be released from said membrane creating the illusion that the flat element passed through said membrane.
1 more element
Dependencies are inferred from the claim text.