Patent US3675365A successfully refreshed from Google Patents.
US3675365A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic toy
Assignee: Individual
•
Filing: 1970-08-05
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Granted: 1972-07-11
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Expires: 1990-08-05
Abstract
Abstract This invention discloses a magnetic toy having wheels or other rotating member carrying varying magnetic fields and an encapsulated bar magnet above the wheels freely enclosed by a transparent tank enclosure. The varying magnetic fields are created by disposing two or more bar magnets parallel to the axis of the wheel and in reversed polarity.
Inventors
- 👤 Ruben Silva
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:27
CPC Classifications
A; A63; A63H; A63H33/00; A63H33/26
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
118 words
A magnetic toy, which comprises: a. a base; b. a wheel mounted to said base to allow movement of said base; c. means for mounting said wheel to said base to allow rotation of said wheel; d. a first bar magnet attached to said wheel; e. a second bar magnet attached to said wheel; f. a tank attached to said base in such proximity to said wheel that it is within the field of one of said first or second magnets, depending upon the position of said wheel; g. a third magnet freely disposed within said tank to permit flipping and flopping movement of said third magnet as the wheel and its corresponding magnets and fields are rotated.
Claim 2
Dependent Claim
118 words
A magnetic toy, which comprises: a. a base; b. a wheel mounted to said base to allow movement of said base; c. means for mounting said wheel to said base to allow rotation of said wheel; d. a first bar magnet attached to said wheel; e. a second bar magnet attached to said wheel; f. a tank attached to said base in such proximity to said wheel that it is within the field of one of said first or second magnets, depending upon the position of said wheel; g. a third magnet freely disposed within said tank to permit flipping and flopping movement of said third magnet as the wheel and its corresponding magnets and fields are rotated.
Claim 3
Dependent Claim
27 words
A magnetic toy as recited in claim 1, wherein the base mounts additional wheels to permit said base to be in the configuration of a toy vehicle.
Claim 4
Dependent Claim
24 words
A magnetic toy as recited in claim 1, wherein the tank is transparent to allow observation of the movement of the said third magnet.
Claim 5
Dependent Claim
24 words
A magnetic toy as recited in claim 1, wherein the said third magnet is encapsulated in a non-ferrous material to permit greater flipping action.
Claim 6
Dependent Claim
48 words
A magnetic toy as recited in claim 1, wherein said first and second magnets are attached with their polar axes parallel to the axis of said wheel and with their relative polarities reversed, to cause changing magnetic fields to pass the third magnet as said wheel is rotated.
Claim 7
Dependent Claim
77 words
A magnetic toy as recited in claim 1 having the following additional elements: a. additional wheels mounted to said base to permit said base to be in the configuration of a toy vehicle; b. said tank is transparent to allow observation of the movement of said third magnet; c. said third magnet is encapsulated in a non-ferrous material to permit greater flipping action; d. an additional tank mounted to the base to correspond with each separate wheel.
Claim 8
Dependent Claim
77 words
A magnetic toy as recited in claim 5 having the following additional elements: a. additional wheels mounted to said base to permit said base to be in the configuration of a toy vehicle; b. said tank is transparent to allow observation of the movement of said third magnet; c. said third magnet is encapsulated in a non-ferrous material to permit greater Flipping action; d. an additional tank mounted to the base to correspond with each separate wheel.
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) | 1975-07-11 | 1976-01-10 | 1976-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-11 | 1980-01-10 | 1980-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-11 | 1984-01-10 | 1984-07-11 | $7700.00 | Window Closed / Lapsed |