Education and demonstration – Question or problem eliciting response – Correctness of response indicated to examine by...
Patent
1987-04-20
1989-04-25
Apley, Richard J.
Education and demonstration
Question or problem eliciting response
Correctness of response indicated to examine by...
434340, 434344, 434327, G09B 300
Patent
active
048243760
ABSTRACT:
An educational device adapted to use interchangeable card members having comparable informational indicia thereon is provided comprising a casing having interchangeable dielectric panel members having upper and lower surfaces removably secured to the casing. A plurality of pairs of normally open electric current paths are associated with the lower surface of the panel member, each of the current paths having a pair of normally open magnetic switches thereby forming a corresponding pair of magnetic switches. A source of electrical energy is connected to the open electric current paths operative when activated to provide a sensurous indication when a corresponding pair of normally open switches is closed. The interchangeable card members which are supported on the dielectric panel members have an upper indicia bearing surface comprising a first section having a plurality of informational indicia thereon and a second section having a plurality of informational indicia thereon, whereby each of the indicia of the first section has a related indicia in the second section to thereby form pairs of comparable indicia. A pair of manipulatable magnetic selector members are provided to close the normally open pairs of magnetic switches when positioned on the indicia bearing surface adjacent to the magnetic switches. When a pair of magnetic selector members are moved over the indicia bearing surface to a correct selection of a pair of comparable indicia, the associated pair of magnetic switches are closed to thereby activate the indicating member.
REFERENCES:
patent: 2673404 (1954-03-01), Abrahamson
patent: 3015895 (1962-01-01), Stall
patent: 3070904 (1963-01-01), Saba
patent: 3645013 (1972-02-01), Takeuchi
patent: 3736671 (1973-06-01), Oleinick
patent: 4268978 (1981-05-01), Houn
patent: 4280809 (1981-07-01), Greenberg et al.
patent: 4609356 (1986-09-01), Gilden
Apley Richard J.
Gordon Edward A.
Welsh J.
LandOfFree
Educational device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Educational device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Educational device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1192806