US4739232A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power unit for a battery-driven toy
Assignee: NIKK0 Co Ltd
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Filing: 1987-02-12
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Granted: 1988-04-19
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Expires: 2007-02-12
Abstract
Abstract A power unit for a battery-driven toy containing a battery power source for energizing a driving means through a power switch and a controlling circuit is disclosed, in which the controlling circuit comprises a circuit element for controlling said driving means and its movable operative contact, said circuit element being provided with a thermo-switch and a reset circuit for setting said movable operative contact into an OFF position through said thermo-switch.
Inventors
- 👤 Zenichi Ishimoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 02:17
CPC Classifications
H; H02; H02H; H02H5/00; H02H5/04; H02H5/047; A; A63; A63H; A63H29/00; A63H29/24
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
134 words
A power unit for a battery-driven toy which contains a batter power source for energizing a driving means through a power switch and a movable operative contact, characterized in that the power unit includes control circuit comprising a reset circuit which includes a thermo-switch operatively associated with said movable operative contact, said reset circuit being effective on said thermo-switch reaching a predetermined temperature to move said movable contact to an OFF-position thereby to deenergize said driving means which comprises an electric motor, said movable operative contact being operatively related to a sliding resistor, said reset circuit including a servo-mechanism for operating the movable contact, said sliding resistor being operatively related to said thermo-switch which is operatively connected in said reset circuit to said servo-mechanism for setting the movable contact into its said OFF position.
Claim 2
Dependent Claim
134 words
A power unit for a battery-driven toy which contains a batter power source for energizing a driving means through a power switch and a movable operative contact, characterized in that the power unit includes control circuit comprising a reset circuit which includes a thermo-switch operatively associated with said movable operative contact, said reset circuit being effective on said thermo-switch reaching a predetermined temperature to move said movable contact to an OFF-position thereby to deenergize said driving means which comprises an electric motor, said movable operative contact being operatively related to a sliding resistor, said reset circuit including a servo-mechanism for operating the movable contact, said sliding resistor being operatively related to said thermo-switch which is operatively connected in said reset circuit to said servo-mechanism for setting the movable contact into its said OFF position.
Claim 3
Dependent Claim
24 words
A power unit for a battery-driven toy according to claim 1, wherein the toy is operated by a radio-controllable system having a wireless receiver.
Claim 4
Dependent Claim
138 words
A power unit for a battery-driven toy which contains a battery power source for energizing a driving means through a power switch and a movable operative contact, characterized in that the power unit includes a control circuit comprising a reset circuit which includes a thermo-switch operatively associated with said movable operative contact, said reset circuit being effective on said thermo-switch reaching a predetermined temperature to move said movable contact to an OFF-position thereby to deenergize said driving means which comprises an electric motor, said reset circuit comprising a relay circuit, energization of said motor being controlled by a resistor provided with said movable contact operative through said relay circuit, said resistor in turn being operatively related to said thermo-switch which is connected in said relay circuit for its deenergization to move the movable contact to its OFF position.
Claim 5
Dependent Claim
138 words
A power unit for a battery-driven toy which contains a battery power source for energizing a driving means through a power switch and a movable operative contact, characterized in that the power unit includes a control circuit comprising a reset circuit which includes a thermo-switch operatively associated with said movable operative contact, said reset circuit being effective on said thermo-switch reaching a predetermined temperature to move said movable contact to an OFF-position thereby to deenergize said driving means which comprises an electric motor, said reset circuit comprising a relay circuit, energization of said motor being controlled by a resistor provided with said movable contact operative through said relay circuit, said resistor in turn being operatively related to said thermo-switch which is connected in said relay circuit for its deenergization to move the movable contact to its OFF position.
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) | 1991-04-19 | 1991-10-19 | 1992-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-04-19 | 1995-10-19 | 1996-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-04-19 | 1999-10-19 | 2000-04-19 | $7700.00 | Window Closed / Lapsed |