Patent US4242831A successfully refreshed from Google Patents.
US4242831A
Expired / Lapsed
US
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Toy apparatus with photoemissive motor control system
Assignee: NED STRONGIN ASSOC Inc
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Filing: 1979-07-02
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Granted: 1981-01-06
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Expires: 1999-07-02
Abstract
Abstract A toy apparatus with a photoemissive motor control system includes a chamber into which a phosphorescent member is placed, whereupon photoemission acts upon a photosensitive element to activate a motor control circuit for operation of a motor which drives the toy apparatus. An activation apparatus is provided, which includes a battery operated lamp for periodic re-energization of the phosphorescent member.
Inventors
- 👤 John F. O'Shaughnessy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:14
CPC Classifications
A; A63; A63H; A63H30/00; A63H30/02; A63F; A63F2250/00; A63F2250/42; A63F2250/426
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
142 words
A photoemissive control system for a toy apparatus having a body portion, comprising a photoemissive phosphorescent member, an enclosed chamber within said body portion and sized to receive said phosphorescent member therewithin, light dependent means mounted within said chamber for producing an electrical output in response to impingement thereon of a predetermined value of photoemission from said photoemissive fluorescent member, electrical load means mounted in said toy apparatus and operative to provide an output in response to electrical energization, direct current power source means, and electrical circuit means connecting said light dependent means, said power source, and said electrical load means for energizing said load means when said phosphorescent member is placed in said chamber after exposure to light, said light dependent means being adapted to render said load means inoperative when photoemission from said phosphorescent member drops below said predetermined value.
Claim 2
Dependent Claim
142 words
A photoemissive control system for a toy apparatus having a body portion, comprising a photoemissive phosphorescent member, an enclosed chamber within said body portion and sized to receive said phosphorescent member therewithin, light dependent means mounted within said chamber for producing an electrical output in response to impingement thereon of a predetermined value of photoemission from said photoemissive fluorescent member, electrical load means mounted in said toy apparatus and operative to provide an output in response to electrical energization, direct current power source means, and electrical circuit means connecting said light dependent means, said power source, and said electrical load means for energizing said load means when said phosphorescent member is placed in said chamber after exposure to light, said light dependent means being adapted to render said load means inoperative when photoemission from said phosphorescent member drops below said predetermined value.
Claim 3
Dependent Claim
18 words
A photoemissive control system according to claim 1 in which said electrical load means comprises an electric motor.
Claim 4
Dependent Claim
42 words
A photoemissive control system according to claim 2 in which said electrical circuit means includes switching means operative in response to the output of said light dependent means to electrically connect said motor to said power source for energization of said motor.
Claim 5
Dependent Claim
27 words
A photoemissive control system according to claim 3 in which said switching means comprises a gate controlled rectifier in series with said motor and said power source.
Claim 6
Dependent Claim
33 words
A photoemissive control system according to claim 4 in which said light dependent means comprises a light sensitive resistor having a resistance which decreases in response to impingement of light on said resistor.
Claim 7
Dependent Claim
47 words
A photoemissive control system according to claim 5 in which said electrical circuit means also includes a variable resistor in series with said light sensitive resistor and said power source for selectively varying said predetermined value of light impingement at which said variable resistor produces said output.
Claim 8
Dependent Claim
17 words
A photoemissive control system according to claim 1 in which said toy apparatus comprises a toy automobile.
Claim 9
Dependent Claim
18 words
A photoemissive control system according to claim 1 in which said toy apparatus comprises a toy robot figure.
Claim 10
Dependent Claim
23 words
A photoemissive control system according to claim 1 in which said phosphorescent member comprises a block of expoxy material impregnated with phosphorescent powder.
Claim 11
Dependent Claim
79 words
A photoemissive control system according to claim 1 which further includes an activation apparatus comprising a transparent housing, a battery-operated lamp mounted in said housing, means for removably mounting said phosphorescent member on said housing adjacent to said lamp, a battery power supply mounted in said housing, switch means connecting said battery power supply to said lamp for continual energization of said lamp, and timer means for interrupting the continuous energization of said lamp after a predetermined time period.
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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) | 1984-01-06 | 1984-07-07 | 1985-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-01-06 | 1988-07-07 | 1989-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-01-06 | 1992-07-07 | 1993-01-06 | $7700.00 | Window Closed / Lapsed |