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Patent US4579540A successfully refreshed from Google Patents.
US4579540A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radio toy
Assignee: NASTA (HONG KONG) Ltd
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Filing: 1984-04-06
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Granted: 1986-04-01
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Expires: 2004-04-06
Abstract
Abstract A radio toy having a plastic toy structure with a body portion erectly fixed on the top of a hollow base and a head portion with a movable lower jaw disposed on the top of the body portion, includes a radio set installed in the hollow base and a magnetic device provided in the mouth of the toy structure in connection with the radio set; thereby, opening and closing of the toy mouth will be automatically effected along with the amplitude of the audio frequency produced by the radio set so as to increase the amusing actions of the radio toy and to stimulate the intelligence of the player.
Inventors
- 👤 Karl Ho
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:46
CPC Classifications
A; A63; A63H; A63H13/00; A63H13/005; A63H3/00; A63H3/28
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
200 words
A radio toy having a hollow base, a toy body fixed on the top surface of the hollow base, a head portion including a mouth having an upper jaw and a relatively movable lower jaw disposed on the top of the toy body, and a radio set with a speaker in the bottom base adapted to be energized by a power source in the hollow base, comprising: an electrically actuatable magnetic means disposed in the head portion of the toy for effecting the opening and closing of the mouth of the head portion; and in audio-frequency control means electrically coupled with the radio set and with said magnetic means for turning on and off said magnetic means in conjunction with the amplitude of the audio frequency produced by the radio set, said audio-frequency control means comprising an audio-frequency voltage amplifying circuit connected to the output of the audio-frequency amplifier of the radio set for rectifying and amplifying the audio signal thereof; a d.c. amplifying circuit connected to the output of said audio-frequency voltage-amplifying circuit for amplifying the rectified d.c. audio signal thereof; and an on-and-off transistor circuit connected between the output of said d.c. amplifying circuit and said magnetic means.
Claim 2
Dependent Claim
200 words
A radio toy having a hollow base, a toy body fixed on the top surface of the hollow base, a head portion including a mouth having an upper jaw and a relatively movable lower jaw disposed on the top of the toy body, and a radio set with a speaker in the bottom base adapted to be energized by a power source in the hollow base, comprising: an electrically actuatable magnetic means disposed in the head portion of the toy for effecting the opening and closing of the mouth of the head portion; and in audio-frequency control means electrically coupled with the radio set and with said magnetic means for turning on and off said magnetic means in conjunction with the amplitude of the audio frequency produced by the radio set, said audio-frequency control means comprising an audio-frequency voltage amplifying circuit connected to the output of the audio-frequency amplifier of the radio set for rectifying and amplifying the audio signal thereof; a d.c. amplifying circuit connected to the output of said audio-frequency voltage-amplifying circuit for amplifying the rectified d.c. audio signal thereof; and an on-and-off transistor circuit connected between the output of said d.c. amplifying circuit and said magnetic means.
Claim 3
Dependent Claim
49 words
The radio toy of claim 1 wherein said magnetic means comprises: a magnet fixed on the inner surface of the movable lower jaw of the head portion; and an electromagnetic member combined with a coil provided in the upper jaw of the head portion in line with said magnet.
Claim 4
Dependent Claim
25 words
The radio toy of claim 2 wherein said on-and-off transistor has a collector and said coil is connected between said collector and the radio set.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-03-31 | 1989-09-30 | 1990-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-03-31 | 1993-09-30 | 1994-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-03-31 | 1997-09-30 | 1998-04-01 | $7700.00 | Window Closed / Lapsed |