Patent US3594943A successfully refreshed from Google Patents.
US3594943A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Toy top pivot accessory
Assignee: Mattel Inc
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Filing: 1970-06-08
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Granted: 1971-07-27
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Expires: 1990-06-08
Abstract
Abstract A twirling structure having a pair of oppositely disposed spinning toy-top-holding portions is supported at its centrally located axis of rotation by an upstanding pedestal portion of a stand or base. The holding portions may be in the form of cups and centrally disposed holes are located at the bottom of the cups in order to center the tops and to allow the tops'' rotating starting tip to come into contact with the cup structure and thereby impart thereto a mechanical couple and cause the structure to twirl about its rotational axis.
Inventors
- 👤 John W Ryan
- 👤 Gabriel Marason Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:13
CPC Classifications
A; A63; A63H; A63H1/00
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
54 words
A toy top pivot accessory for use with spinning tops having exposed starting tips, comprising: a stand with an upstanding pedestal portion; and twirling means including a platform rotatably mountable on said pedestal portion, said platform including spaced toy-topholding portions oppositely disposed of but equally spaced from the axis of rotation of said platform.
Claim 2
Dependent Claim
54 words
A toy top pivot accessory for use with spinning tops having exposed starting tips, comprising: a stand with an upstanding pedestal portion; and twirling means including a platform rotatably mountable on said pedestal portion, said platform including spaced toy-topholding portions oppositely disposed of but equally spaced from the axis of rotation of said platform.
Claim 3
Dependent Claim
46 words
A toy top pivot accessory according to claim 1, wherein said toy-top-holding portions are cup members having vertical spinning top axes coaxial with the internal dimensions of said cup members, said spinning top axes both lying in the same common plane with said axis of rotation.
Claim 4
Dependent Claim
38 words
A toy top pivot accessory according to claim 2, wherein each of said cup members also include starting tip-engaging means for providing a mechanical couple to said platform to cause it to rotate about said axis of roTation.
Claim 5
Dependent Claim
28 words
A toy top pivot accessory according to claim 3, wherein said starting tip-engaging means is a hole in the bottom of and centrally located in the cup structures.
Claim 6
Dependent Claim
73 words
A toy top pivot accessory according to claim 3, wherein said platform also includes a cross member at opposite ends of which said cup members are disposed, said axis of rotation being at a point midway along the length of said cross member and orthogonal thereto, said cross member including a thrust bearing coaxial to said axis of rotation and having a downwardly exposed opening to accept the pedestal portion of said stand.
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) | 1974-07-26 | 1975-01-25 | 1975-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-26 | 1979-01-25 | 1979-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-26 | 1983-01-25 | 1983-07-27 | $7700.00 | Window Closed / Lapsed |