Patent US3699668A successfully refreshed from Google Patents.
US3699668A
Expired / Lapsed
US
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Instructional device with interchangeable indicia cards
Assignee: Individual
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Filing: 1971-02-19
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Granted: 1972-10-24
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Expires: 1991-02-19
Abstract
Abstract An instructional device or educational toy having a series of question and answer cards that are interchangeable on a portable console having spaced push buttons that selectively actuate an electrical signal system. The cards have a metallic tape or a metallic imprint on the rear, hidden side of the card directly under a corresponding correct push button whereby, when the correct push button is pushed, the signal system is made operative.
Inventors
- 👤 Ian A Tesar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:39
CPC Classifications
G; G09; G09B; G09B7/00; G09B7/06; G09B7/066
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
161 words
An instructional device comprising a base member, a plurality of spring biased metallic push buttons mounted in spaced relationship on said base member, an elongated metal plate provided with corresponding spaced openings through which said buttons project with a gap between said buttons and the adjacent edges of said metal plate, a plurality of indicia bearing interchangeable cards in the form of questions and answers, each of said cards being placed on said base member and having a metallic layer on a predetermined location on the undersurface of each of said cards which overlays the correct push button when said card is in position on said base member, and an electrical signal system, including a circuit that is normally open, said circuit being closed when said card and correct push button is pushed, said circuit closing being effected by means of said metallic layer bridging said gap between the correct metallic push button and the adjacent edge of said metal plate.
Claim 2
Dependent Claim
161 words
An instructional device comprising a base member, a plurality of spring biased metallic push buttons mounted in spaced relationship on said base member, an elongated metal plate provided with corresponding spaced openings through which said buttons project with a gap between said buttons and the adjacent edges of said metal plate, a plurality of indicia bearing interchangeable cards in the form of questions and answers, each of said cards being placed on said base member and having a metallic layer on a predetermined location on the undersurface of each of said cards which overlays the correct push button when said card is in position on said base member, and an electrical signal system, including a circuit that is normally open, said circuit being closed when said card and correct push button is pushed, said circuit closing being effected by means of said metallic layer bridging said gap between the correct metallic push button and the adjacent edge of said metal plate.
Claim 3
Dependent Claim
17 words
An instructional device as claimed in claim 1 wherein said electrical signal system is a visual light.
Claim 4
Dependent Claim
22 words
An instructional device as claimed in claim 1 wherein said electrical signal system is both a visual light and an audio alarm.
Claim 5
Dependent Claim
34 words
An instructional device as claimed in claim 1 wherein said metallic layer is a strip of metallic tape bonded to the back of each of said cards under the answer forming the correct response.
Claim 6
Dependent Claim
31 words
An instructional device as claimed in claim 1 wherein said metallic layer is a metallic imprint on the back of each of said cards under the answer forming the correct response.
Claim 7
Dependent Claim
26 words
An instructional device as claimed in claim 1 wherein said electrical signal system includes a battery power source and said base member is a portable console.
Claim 8
Dependent Claim
26 words
An instructional device as claimed in claim 6 wherein said console is provided with side notches whereby said interchangeable cards may be easily grasped and removed.
Claim 9
Dependent Claim
25 words
An instructional device as claimed in claim 1 wherein said metallic push buttons are each biased in a direction away from said elongated metal plate.
Claim 10
Dependent Claim
17 words
An instructional device as claimed in claim 1 wherein said electrical signal system is an audio alarm.
Claim 11
Dependent Claim
19 words
An instructional device as claimed in claim 3 further comprising means for disconnecting said audio alarm from said circuit.
References Cited (Backward Citations)
US2943399A
Cited
US2997793A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-10-24 | 1976-04-24 | 1976-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-24 | 1980-04-24 | 1980-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-24 | 1984-04-24 | 1984-10-24 | $7700.00 | Window Closed / Lapsed |