US3749405A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hand manipulative ball and race puzzle device
Assignee: Individual
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Filing: 1972-05-15
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Granted: 1973-07-31
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Expires: 1992-05-15
Abstract
Abstract A puzzle device consists of a two part opaque hand manipulative closed case in which is a circular race in which a small playing ball rolls freely, there being a central cavity beneath a small viewing window in the top closure of the case; a radial groove intersects the race and connects with the cavity under the window, there being an intermediate separating flange which during manipulation of the device guides the ball to the window where it is visible when the puzzle is solved.
Inventors
- 👤 G Grattoni
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 01:28
CPC Classifications
A; A63; A63F; A63F7/00; A63F7/04; A63F7/041
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
120 words
A puzzle device comprising a two-part opaque body having an interior circular race; a playing ball adapted to roll freely in said race; a viewing window in the top face of said body; a centrally disposed cavity formed in said body beneath said window; a radially disposed coverage groove which near one end intersects said race and at the other end terminates in the bottom part of said centrally disposed cavity; said centrally disposed cavity having an inwardly directed flange at an intermediate elevational position dividing said cavity into an upper and a lower part, whereby the playing ball may be seen through said window when said ball is resting on said flange in said upper part of said cavity.
Claim 2
Dependent Claim
120 words
A puzzle device comprising a two-part opaque body having an interior circular race; a playing ball adapted to roll freely in said race; a viewing window in the top face of said body; a centrally disposed cavity formed in said body beneath said window; a radially disposed coverage groove which near one end intersects said race and at the other end terminates in the bottom part of said centrally disposed cavity; said centrally disposed cavity having an inwardly directed flange at an intermediate elevational position dividing said cavity into an upper and a lower part, whereby the playing ball may be seen through said window when said ball is resting on said flange in said upper part of said cavity.
Claim 3
Dependent Claim
229 words
A puzzle device comprising a body having an upper portion and a bottom portion arranged to be superimposed, each portion being provided with a corresponding circuitious groove which when the two portions are assembled form an interior race in which a spherical playing ball may freely roll, said race being in a depth at least twice the diameter of the playing ball; a radial groove in the bottom portion of said body, said radial groove intersecting said race at an elevation above the bottom of said race, and extending outwardly therefrom for a distance approximately the diameter of the playing ball, and said radial groove extending inwardly from said intersection on a slightly inclined path to connect with a shallow central cavity in the said bottom portion; a centrally disposed transparent window in said upper body portion; a shallow upper central cavity formed in said upper body portion, said upper cavity adjoining said shallow central cavity in said bottom body portion when the portions are superimposed; a spherical playing ball adapted to freely roll at times in said central cavity, in said radial groove, and in said race; means for holding together said superimposed upper and lower body portions; and an inwardly directed flange disposed on the lower rim of said central cavity, upon which flange said playing ball may at times be disposed and viewed from said window.
Claim 4
Dependent Claim
229 words
A puzzle device comprising a body having an upper portion and a bottom portion arranged to be superimposed, each portion being provided with a corresponding circuitious groove which when the two portions are assembled form an interior race in which a spherical playing ball may freely roll, said race being in a depth at least twice the diameter of the playing ball; a radial groove in the bottom portion of said body, said radial groove intersecting said race at an elevation above the bottom of said race, and extending outwardly therefrom for a distance approximately the diameter of the playing ball, and said radial groove extending inwardly from said intersection on a slightly inclined path to connect with a shallow central cavity in the said bottom portion; a centrally disposed transparent window in said upper body portion; a shallow upper central cavity formed in said upper body portion, said upper cavity adjoining said shallow central cavity in said bottom body portion when the portions are superimposed; a spherical playing ball adapted to freely roll at times in said central cavity, in said radial groove, and in said race; means for holding together said superimposed upper and lower body portions; and an inwardly directed flange disposed on the lower rim of said central cavity, upon which flange said playing ball may at times be disposed and viewed from said window.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-30 | 1977-01-29 | 1977-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-30 | 1981-01-29 | 1981-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-30 | 1985-01-29 | 1985-07-31 | $7700.00 | Window Closed / Lapsed |