Educational toy
US4024650A · kind A · utility
Inventors
Key dates
| Filing date | Jan 30, 1976 |
| Grant date | May 24, 1977 |
| Priority date | — |
| Expiry date | Jan 30, 1996 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63F9/18
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An educational toy comprising a case, a plurality of changeable question and answer combination cards with notched longitudinal edges, a series of question actuating means and a series of corresponding answer actuating means, an indication mechanism composed of an affirmative indicator and a negative indicator, a series of question setting plates horizontally displaceable arranged beneath the corresponding question actuating means and having at their undersides at least two ribs with different inclined bottom surfaces, a series of answer setting plates connected at the bottoms of the corresponding answer actuating means and vertically displaceable together therewith, a movable board having a series of wedge-shaped posts along one side to be in selective cooperation with one of the said inclined ribs to set the position of the board and a series of supports laterally extended away from the board, and a pair of rods transversely supported at the free ends of the said supports and each having radially extended a series of L-shaped levers to be in selective cooperation with the said answer setting plates so as to raise up either the said affirmative indicator or the said negative indic…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.