US3758961A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Educational device
Assignee: Epoch Co Ltd
•
Filing: 1972-04-25
•
Granted: 1973-09-18
•
Expires: 1992-04-25
Abstract
Abstract An educational device featuring a housing provided with a slot within which a plurality of cards containing problems and multiple choice answers thereto are inserted, the housing being further provided with a plurality of buttons operatively connected to a plurality of fingers normally extending within the slot, the cards each being further provided with coded cut-out portions adjacent the correct answers, the fingers normally extending through the coded cut-out portions preventing the card from moving while actuation of the correct buttons withdraws the fingers from the coded cut-out portions permitting the card to move outwardly within the slot under the influence of a spring biasing mechanism to the next problem to be solved, after which the sequence is repeated.
Inventors
- 👤 T Matsumoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:15
CPC Classifications
G; G09; G09B; G09B3/00; G09B3/06
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
300 words
An educational device, comprising: a generally flat housing adapted to rest on a supporting surface; a slot formed horizontally within said housing; a plurality of fingers having ends freely mounted about a rod within said housing, said fingers further being provided with portions generally perpendicular to said slot and normally extending downwardly therein; a plurality of actuating members mounted on said housing corresponding to said fingers, said actuating members operatively connected to said fingers such that as each of said actuating members is operated said perpendicular portion of the finger corresponding to said actuating member is raised above said slot; a card inserted within said slot, said card being provided with rows of indicia, each row designating a problem and multiple choice answers to said problem, said card being further provided with coded cut-out means adjacent that portion of said indicia in each row designating the correct answer to said problem, that one of said fingers corresponding to the correct answer normally extending through said coded cut-out means preventing said card from moving within said slot, the operation of said actuating member corresponding to that one of said fingers corresponding to the correct answer thus causing same to be withdrawn from said coded cut-out means so as to release said card within said slot; and means urging said card outwardly of said slot to pass from one row of said indicia to another, comprising oppositely disposed legs extending within said slot, said legs supporting the innermost end of said card, linkage means connecting said legs and resilient means normally urging said linkage means to move said legs in unison within said slot from the innermost end thereof outwardly until another of said perpendicular portions of said fingers falls downwardly through said coded cut-out means in the next row of indicia.
Claim 2
Dependent Claim
300 words
An educational device, comprising: a generally flat housing adapted to rest on a supporting surface; a slot formed horizontally within said housing; a plurality of fingers having ends freely mounted about a rod within said housing, said fingers further being provided with portions generally perpendicular to said slot and normally extending downwardly therein; a plurality of actuating members mounted on said housing corresponding to said fingers, said actuating members operatively connected to said fingers such that as each of said actuating members is operated said perpendicular portion of the finger corresponding to said actuating member is raised above said slot; a card inserted within said slot, said card being provided with rows of indicia, each row designating a problem and multiple choice answers to said problem, said card being further provided with coded cut-out means adjacent that portion of said indicia in each row designating the correct answer to said problem, that one of said fingers corresponding to the correct answer normally extending through said coded cut-out means preventing said card from moving within said slot, the operation of said actuating member corresponding to that one of said fingers corresponding to the correct answer thus causing same to be withdrawn from said coded cut-out means so as to release said card within said slot; and means urging said card outwardly of said slot to pass from one row of said indicia to another, comprising oppositely disposed legs extending within said slot, said legs supporting the innermost end of said card, linkage means connecting said legs and resilient means normally urging said linkage means to move said legs in unison within said slot from the innermost end thereof outwardly until another of said perpendicular portions of said fingers falls downwardly through said coded cut-out means in the next row of indicia.
Claim 3
Dependent Claim
27 words
An educational device as in claim 1, wherein said indicia is located on both sides of said card and arranged to correspond with said coded cut-out means.
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) | 1976-09-17 | 1977-03-19 | 1977-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-17 | 1981-03-19 | 1981-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-17 | 1985-03-19 | 1985-09-18 | $7700.00 | Window Closed / Lapsed |