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US3575545A Expired / Lapsed US ⏱️ 0.0 years remaining

Educational apparatus

Assignee: Individual
•
Filing: 1968-11-25
•
Granted: 1971-04-20
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Expires: 1988-11-25
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Abstract

Abstract Apparatus for checking the answers to problems on a test paper. A panel on the apparatus has question and answer terminals corresponding to the problems and solutions. Student-operated conductor means are used to complete electric circuits between the question and answer terminals whereby to energize signalling means which indicate whether or not a question has been answered correctly. Programming circuits and switch means enable a teacher to program the apparatus according to the type of test being given and his selected arrangement of the correct answers to the problems on the test paper.

Inventors

  • 👤 Archibald Millar

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 22:18
CPC Classifications
G; G09; G09B; G09B7/00; G09B7/06; G09B7/063

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 306 words
Educational apparatus comprising a panel, a plurality of question terminals spaced along one side of the panel, a plurality of answer terminals arranged in groups on the other side of the panel, a test paper removably secured to the panel between the question and answer terminals, said test paper containing a problem adjacent each question terminal and a plurality of alternate answers to said problem adjacent a group of answer terminals, programming circuits interconnecting the question and answer terminals, switch means in the programming circuits including first and second selector switches and a master switch for connecting each question terminal to a selected answer terminal, said plurality of alternate answers to each problem including a predetermined correct answer entered on the test paper adjacent an appropriate selected answer terminal as indicated by the position of the master switch, a signalling circuit adapted to be connected to a source of electric current and including signalling means and manually operable conductor means, said conductor means being operable to electrically connect each question terminal to a selected answer terminal whereby the signalling means is energized if the selected answer terminal so connected is adjacent the predetermined correct answer to the problem associated with said question terminal, said first and second selector switches cooperating with the master switch to alter the programming circuits and connect a question terminal to a particular answer terminal according to the type of test on the test paper, said first selector switch being placed in a first operating position for a multiple choice test and a true or false test and being placed in a second operating position for a matching test, said second selector switch being placed in one operating position for a multiple choice test and a matching test and being placed in a second operation position for a true or false test.
Claim 2
Dependent Claim 306 words
Educational apparatus comprising a panel, a plurality of question terminals spaced along one side of the panel, a plurality of answer terminals arranged in groups on the other side of the panel, a test paper removably secured to the panel between the question and answer terminals, said test paper containing a problem adjacent each question terminal and a plurality of alternate answers to said problem adjacent a group of answer terminals, programming circuits interconnecting the question and answer terminals, switch means in the programming circuits including first and second selector switches and a master switch for connecting each question terminal to a selected answer terminal, said plurality of alternate answers to each problem including a predetermined correct answer entered on the test paper adjacent an appropriate selected answer terminal as indicated by the position of the master switch, a signalling circuit adapted to be connected to a source of electric current and including signalling means and manually operable conductor means, said conductor means being operable to electrically connect each question terminal to a selected answer terminal whereby the signalling means is energized if the selected answer terminal so connected is adjacent the predetermined correct answer to the problem associated with said question terminal, said first and second selector switches cooperating with the master switch to alter the programming circuits and connect a question terminal to a particular answer terminal according to the type of test on the test paper, said first selector switch being placed in a first operating position for a multiple choice test and a true or false test and being placed in a second operating position for a matching test, said second selector switch being placed in one operating position for a multiple choice test and a matching test and being placed in a second operation position for a true or false test.
Claim 3
Dependent Claim 25 words
Education apparatus as claimed in claim 1, and including a shield attachable to the panel to cover some of the answer terminals of each group.
Claim 4
Dependent Claim 42 words
Educational apparatus as claimed in claim 1, in which said switch means includes a two position switch for each question terminal, said second selector switch being operable to disconnect either the two position switches or the master switch from the programming circuits.
Claim 5
Dependent Claim 51 words
Educational apparatus as claimed in claim 1, and including a shield attachable to the panel to cover some of the answer terminals of each group, said manually operable conductor means being a pair of probes and flexible conductors therefor detachably connected into the signalling circuit on opposite side of the panel.
Claim 6
Dependent Claim 36 words
Educational apparatus as claimed in claim 1, in which said first selector switch is operable to horizontally disalign each question terminal from the group of answer terminals containing the selected answer terminal for a particular proBlem.

References Cited (Backward Citations)

US3124883A Cited
GB300175A Cited
US3100352A Cited
US3106784A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1974-04-19 1974-10-19 1975-04-20 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-04-19 1978-10-19 1979-04-20 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-04-19 1982-10-19 1983-04-20 $7700.00 Window Closed / Lapsed

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