US3650067A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gyroscope toy
Assignee: G L J TOY CO Inc
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Filing: 1969-11-24
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Granted: 1972-03-21
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Expires: 1989-11-24
Abstract
Abstract Friction driven toys including a gyroscopic stabilizing element.
Inventors
- 👤 Donald Greenwood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:26
CPC Classifications
A; A63; A63H; A63H29/00; A63H29/20
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
75 words
A two-wheeled friction driven toy having a rotatable flywheel comprising a main body housing, and gearing means having a plurality of gears connected to at least one of said wheels constituting a drive wheel, said rotatable flywheel being disposed on a common shaft with one of said gears and providing gyroscopic action for enhancing the stability and balance of said toy, and said rotatable flywheel being disposed vertically between said two wheels of said toy.
Claim 2
Dependent Claim
75 words
A two-wheeled friction driven toy having a rotatable flywheel comprising a main body housing, and gearing means having a plurality of gears connected to at least one of said wheels constituting a drive wheel, said rotatable flywheel being disposed on a common shaft with one of said gears and providing gyroscopic action for enhancing the stability and balance of said toy, and said rotatable flywheel being disposed vertically between said two wheels of said toy.
Claim 3
Dependent Claim
44 words
The two-wheeled friction driven toy according to claim 1, wherein said flywheel is of a predetermined mass to provide adequate torque to propel said toy and in aiding to maintain said toy to perform maneuvers in a forward direction on said rear wheel only.
Claim 4
Dependent Claim
29 words
The two-wheeled friction driven toy according to claim 2, wherein said flywheel is located near the bottom of said toy and in close proximity to its center of gravity.
Claim 5
Dependent Claim
18 words
The friction driven toy according to claim 1, including means for enabling said flywheel to be visually perceived.
Claim 6
Dependent Claim
17 words
The friction driven toy according to claim 4, wherein said means comprises a transparent main body housing.
Claim 7
Dependent Claim
20 words
The friction driven toy according to claim 4, wherein said means comprises a viewing aperture in said main body housing.
Claim 8
Dependent Claim
18 words
The friction driven toy according to claim 6, wherein said aperture is provided with a protective transparent window.
Claim 9
Dependent Claim
37 words
The friction driven toy according to claim 1, wherein said flywheel is made of a material having a greater density than the material forming said main body housing and said main body housing is made of plastic.
Claim 10
Dependent Claim
25 words
The friction driven toy according to claim 4, wherein at least one side of said flywheel is provided with a plurality of differently colored spirals.
Claim 11
Dependent Claim
148 words
The friction driven toy according to claim 3, wherein said gearing means has a ratio of about 4.2 to 1. 11. A four-wheeled friction driven toy having a rotatable flywheel and front and rear pairs of wheels comprising a main body housing, and gearing means having a plurality of gears connected to said rear pair of wheels constituting drive wheels, said rotatable flywheel being disposed on a common shaft with one of said gears and providing gyroscopic action for enhancing the stability and balance of said toy, and said rotatable flywheel being disposed horizontally between said two pair of wheels of said toy; said rotatable flywheel is disposed adjacent the bottom of said toy in proximity to the toy''s center of gravity, the bottom of said toy having a viewing window for observing said rotatable flywheel, and said flywheel being provided with a plurality of differently colored spirals.
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) | 1975-03-21 | 1975-09-20 | 1976-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-21 | 1979-09-20 | 1980-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-21 | 1983-09-20 | 1984-03-21 | $7700.00 | Window Closed / Lapsed |