Boots – shoes – and leggings
Patent
1985-06-20
1989-01-31
Gruber, Felix D.
Boots, shoes, and leggings
364580, 434340, G09B 706, G06F 902
Patent
active
048020923
ABSTRACT:
This invention provides the user with immediate feedback as to the correctness or incorrectness of their respones to multiple choice, true - false, and cross matching questions by the use of a hand held electric probe that produces a magnetic field; where said magnetic field is picked up by at least one of the linear electroconductive elements in each of two sets of electroconductive elements. These two sets of electroconductive elements are arranged one immediately above the other in two parallel planes that are located immediately beneath a holding frame that accurately positions instructional sheets on its upper surface. Located on the instructional sheets are answer response areas that immediately overly some of the points where one strip in the top set passes over one of the strips in the bottom set of electroconductive elements. When the user believes that he has found a correct answer, he places the electric probe over that response area on the instructional sheet. The electrical field generated by the probe energizes one conductive strip from each of the two sets of conductive strips, and a circuit in each set is activated, which locates the point where the probe was placed. This information is sent to a linked computer which uses an internal program to evaluate the response, and feed information back to the user as to his correct and incorrect responses. The computer also retains this information in its memory.
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Chase D. A. N.
Gruber Felix D.
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