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US4259808A Expired / Lapsed US ⏱️ 0.0 years remaining

Magnetic optical toy

Assignee: Individual
•
Filing: 1979-11-02
•
Granted: 1981-04-07
•
Expires: 1999-11-02
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Abstract

Abstract A Magnetic Optical Toy comprising a mirrored viewing chamber, various ferrous metal pieces lying randomly and freely within the mirrored viewing chamber, a movable magnet against and about the exterior surface of the mirrored chamber, and a viewing area into the mirrored chamber allowing the observation of the interior of the mirrored chamber with both eyes of the observer in order to perceive a three dimensional image. As the magnet is moved against and about the outside surface of the internally mirrored chamber various shapes and sizes of ferrous metal pieces are attracted and otherwise moved within the mirrored chamber and form a random design pattern which is reflected in the mirrored chamber resulting in a viewable three dimensional reflected design configuration. The design configuration changes as the magnet is manipulated by the observer.

Inventors

  • 👤 Harry S. Oakes

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 16:44
CPC Classifications
A; A63; A63H; A63H33/00; A63H33/22; A63H33/26; Y; Y10; Y10S; Y10S428/00; Y10S428/90

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 122 words
A Magnetic Optical Toy comprising: two opposed mirrors joined along a straight edge and angled in order to reflect symetrically repeated images; a transparent cover enclosing the space between the two opposed mirrors; ferrous metal pieces of various shapes and sizes operationally enclosed within the space between the two opposed mirrors by the transparent cover; and a magnet adapted to be maneuvered against the exterior surface area of the two opposed mirrors and the transparent cover to attract and otherwise move the ferrous metal pieces through the interaction of the magnetic field of the magnet with the ferrous metal pieces to form design patterns between the two opposed mirrors and reflected, symetrically repeated design pattern images in the two opposed mirror surfaces.
Claim 2
Dependent Claim 122 words
A Magnetic Optical Toy comprising: two opposed mirrors joined along a straight edge and angled in order to reflect symetrically repeated images; a transparent cover enclosing the space between the two opposed mirrors; ferrous metal pieces of various shapes and sizes operationally enclosed within the space between the two opposed mirrors by the transparent cover; and a magnet adapted to be maneuvered against the exterior surface area of the two opposed mirrors and the transparent cover to attract and otherwise move the ferrous metal pieces through the interaction of the magnetic field of the magnet with the ferrous metal pieces to form design patterns between the two opposed mirrors and reflected, symetrically repeated design pattern images in the two opposed mirror surfaces.

References Cited (Backward Citations)

US1728610A Cited
US3422562A Cited
US3860324A Cited
US3883988A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1984-04-06 1984-10-06 1985-04-07 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1988-04-06 1988-10-06 1989-04-07 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1992-04-06 1992-10-06 1993-04-07 $7700.00 Window Closed / Lapsed

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