Patent US3898762A successfully refreshed from Google Patents.
US3898762A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Toy spinning top
Assignee: Individual
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Filing: 1973-11-16
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Granted: 1975-08-12
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Expires: 1993-11-16
Abstract
Abstract A toy spinning top in which two discs are covered by a transparent dome. The dome and an upper one of the discs are rotatably drivable relative to the other disc with the upper disc having toy vehicles secured thereto. A cam surface carried by the upper disc engages, on relative rotation of the two discs, a cam follower carried by the other disc thereby to operate an auxiliary element such as the pivotal arm of a trackside train signal.
Inventors
- 👤 Peter Balleis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:50
CPC Classifications
A; A63; A63H; A63H1/00; A63H1/20
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
111 words
A toy spinning top comprising a transparent dome, a first disc and a second transparent disc of smaller diameter than the first disc covered by said dome, said first and second disc each having a respective marginal region, drive means to rotate said dome and said second disc about an axis and relative to said first disc, a vertically deflectable member mounted of the marginal region of said first disc and projecting into the marginal region of the second disc, cam means supported on said second disc, said cam means having a cam surface positioned to deflect the deflectable member on rotation of the second disc relative to the first disc.
Claim 2
Dependent Claim
111 words
A toy spinning top comprising a transparent dome, a first disc and a second transparent disc of smaller diameter than the first disc covered by said dome, said first and second disc each having a respective marginal region, drive means to rotate said dome and said second disc about an axis and relative to said first disc, a vertically deflectable member mounted of the marginal region of said first disc and projecting into the marginal region of the second disc, cam means supported on said second disc, said cam means having a cam surface positioned to deflect the deflectable member on rotation of the second disc relative to the first disc.
Claim 3
Dependent Claim
25 words
A toy top as claimed in claim 1 and further comprising at least one toy shape secured to the second disc to be rotatable therewith.
Claim 4
Dependent Claim
86 words
A toy top as claimed in claim 1 wherein said cam means comprise a wedge-shaped member affixed to the second disc, the wedge-shaped member having a thin end, relatively thicker end and a surface extending therebetween arcuately of the second disc, and wherein said drive means is adapted to rotate said second disc in one rotational sense and the said surface of the wedge-shape member diverges away from the second disc downstream relative to the direction of rotation of the disc to form said cam surface.
Claim 5
Dependent Claim
48 words
A toy top as claimed in claim 3, and further comprising an arcuate extension to the wedge-shaped member, the extension being of the same uniform thickness as the thicker end of the wedge-shaped member and extending downstream therefrom relative to the direction of rotation of the second disc.
Claim 6
Dependent Claim
44 words
A toy top as claimed in claim 4, and further comprising at least one toy shape secured to the second disc so as to be rotatable therewith, and wherein the extension has an angular extent at least equal to that of the toy shape.
Claim 7
Dependent Claim
19 words
A toy top as claimed in claim 1 wherein the cam means is integrally moulded with the second disc.
Claim 8
Dependent Claim
42 words
A toy top as claimed in claim 1 wherein the deflectable member comprises a substantially vertically extending wire, the wire having an end portion engageable with the cam surface and bent away from the cam surface to form a U-shaped cam follower.
Claim 9
Dependent Claim
54 words
A toy top as claimed in claim 7 and further comprising a second end portion to the wire, and pivoted arm operably connected to the second end portion of the wire so as to be pivoted by displacement of the wire on engagement of the cam surface and cam follower portion of the wire.
Claim 10
Dependent Claim
48 words
A toy top as claimed in claim 8, wherein the pivoted arm comprises a signal and further comprising a toy train secured to the second disc and wherein the cam surface is positioned to raise the signal on approach of the train during rotation of the second disc.
References Cited (Backward Citations)
GB1047915A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-08-11 | 1979-02-10 | 1979-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-11 | 1983-02-10 | 1983-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-11 | 1987-02-10 | 1987-08-12 | $7700.00 | Window Closed / Lapsed |