Patent US2687329A successfully refreshed from Google Patents.
Patent US3864848A successfully refreshed from Google Patents.
US3864848A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Learner feedback device
Assignee: Purdue Research Foundation
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Filing: 1973-09-13
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Granted: 1975-02-11
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Expires: 1993-09-13
Abstract
Abstract This invention relates to a learning feedback device which utilizes symbol bearing pieces, either singly or in combination, for emplacement on a display board. These devices have one or more magnets emplaced therein. The display board has single, or a plurality, reed type magnetically actuated switches emplaced there below in hidden position located such that a correct emplacement of one of said symbol bearing devices corresponding to an indicia displayed upon the display board will close an electric circuit by actuation of said magnetic switch thereby electrically energizing some type of signal device. There is no necessity to establish a conductive path between the symbol bearing devices emplaced on the display board and the magnetically actuated switching circuit hidden below the display board. The invention basically has two embodiments, one in which indicia bearing cards or plates are placed on the display board with variably located cutouts to receive the magnet bearing pieces, whereby different switches are actuated in the electrical circuit and the other embodiment has predetermined locations for emplacement of the magnet carrying pieces on the display board, with variable placement of the hidden magnetic switches causing variable, predetermined, correct energization of the switching circuit.
Inventors
- 👤 Harry M Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:08
CPC Classifications
G; G09; G09B; G09B7/00; G09B7/06; G09B7/066
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
130 words
A learning feedback device comprising a display board adapted to receive logic means and one or more symbol bearing means on the surface thereof; at least one symbol bearing means sized for emplacement on said display board, said symbol bearing means including at least one magnet; said logic means disposed in electrically non-contacting relationship with said symbol bearing means; electric circuit means influenced by said magnet to become electrically conductive while remaining electrically isolated from said symbol bearing means upon a predetermined correct emplacement of said symbol bearing means in relation to said logic means; an electrically actuated signal device connected in said electrical circuit means; and power supply means connected in said electrical circuit means and adapted to actuate said signal device upon said electrical circuit means becoming conductive.
Claim 2
Dependent Claim
130 words
A learning feedback device comprising a display board adapted to receive logic means and one or more symbol bearing means on the surface thereof; at least one symbol bearing means sized for emplacement on said display board, said symbol bearing means including at least one magnet; said logic means disposed in electrically non-contacting relationship with said symbol bearing means; electric circuit means influenced by said magnet to become electrically conductive while remaining electrically isolated from said symbol bearing means upon a predetermined correct emplacement of said symbol bearing means in relation to said logic means; an electrically actuated signal device connected in said electrical circuit means; and power supply means connected in said electrical circuit means and adapted to actuate said signal device upon said electrical circuit means becoming conductive.
Claim 3
Dependent Claim
175 words
A learning feedback device comprising: a display board adapted to receive one or more symbol bearing means on the surface thereof; at least one symbol bearing means sized for emplacement on saiD display board, said symbol bearing means including at least one magnet; logic means comprised of non-magnetic material, said logic means bearing indicia thereupon having a predetermined correspondence with a symbol carried upon said symbol bearing means and said logic means being adapted to determine the place of emplacement of said symbol bearing means upon said display board; electrical circuit means electrically isolated from said symbol bearing means, said electrical circuit means including at least one magnetically actuatable switch, said switch being fixed in a position whereby it is actuated only upon emplacement of said symbol bearing means on said display board in the correct predetermined correspondence with said logic means; an electrically actuated signal device connected in said electrical circuit means; power supply means connected in said electrical circuit means and adapted to actuate said signal device upon said electrical circuit becoming conductive.
Claim 4
Dependent Claim
175 words
A learning feedback device comprising: a display board adapted to receive one or more symbol bearing means on the surface thereof; at least one symbol bearing means sized for emplacement on saiD display board, said symbol bearing means including at least one magnet; logic means comprised of non-magnetic material, said logic means bearing indicia thereupon having a predetermined correspondence with a symbol carried upon said symbol bearing means and said logic means being adapted to determine the place of emplacement of said symbol bearing means upon said display board; electrical circuit means electrically isolated from said symbol bearing means, said electrical circuit means including at least one magnetically actuatable switch, said switch being fixed in a position whereby it is actuated only upon emplacement of said symbol bearing means on said display board in the correct predetermined correspondence with said logic means; an electrically actuated signal device connected in said electrical circuit means; power supply means connected in said electrical circuit means and adapted to actuate said signal device upon said electrical circuit becoming conductive.
Claim 5
Dependent Claim
50 words
The learning feedback device according to claim 2 in which said symbol bearing means, logic means, and said electrical circuit means are substantially flat with said logic means contiguous to both said symbol bearing means and said electrical circuit means when properly emplaced for energization of said electrical circuit means.
Claim 6
Dependent Claim
39 words
The learning feedback device according to claim 2 in which said electrical circuit means includes a plurality of magnetically actuatable switches whereby multiple predetermined correct symbol means and logic means bearing indicia combinations will close said electrical circuit means.
Claim 7
Dependent Claim
83 words
The learning feedback device according to claim 4 in which said logic means includes a plurality of cards made of plastic or other non-magnetic material, said cards having cutouts at various locations so that a symbol bearing means emplaced in a cutout will, in a predetermined manner determined by both the location of the magnet in said symbol bearing means and the location of the magnetically acutated switch in said electrical circuit means, close said electrical circuit means while remaining electrically isolated therefrom.
Claim 8
Dependent Claim
61 words
The learning feedback device according to claim 5 in which said cards contain a plurality of cutouts, each adapted to receive a symbol bearing means having at least one magnet therein, with said electrical circuit means being adapted to be closed upon predetermined combinations of two or more symbol bearing means being emplaced in the cutouts in said indicia bearing cards.
Claim 9
Dependent Claim
43 words
The learning feedback device according to claim 6 in which said magnetic swtiches are responsive to the axial orientation of said magnets whereby a large number of predetermined correct emplacements of a single symbol bearing means including a plurality of magnets is attained.
Claim 10
Dependent Claim
143 words
A learning feedback device comprising: a display board adapted to receive one or more symbol bearing means on a surface thereof; at least one symbol bearing means sized for emplacement on said display board, said symbol bearing means including at least one magnet; said display board having a predetermined location thereupon for emplacement of a symbol bearing means thereupon; electrical circuit means electrically isolated from said symbol bearing means, said electrical circuit means including at least one magnetically actuatable switch, said switch being fixed in a position whereby it is actuated only upon emplacement of said symbol bearing means on said display board in the correct predetermined correspondence therewith; an electrically actuated signal device connected in said electrical circuit means; power supply means connected in said electrical circuit means and adapted to actuate said signal device upon said electrical circuit means becoming conductive.
Claim 11
Dependent Claim
143 words
A learning feedback device comprising: a display board adapted to receive one or more symbol bearing means on a surface thereof; at least one symbol bearing means sized for emplacement on said display board, said symbol bearing means including at least one magnet; said display board having a predetermined location thereupon for emplacement of a symbol bearing means thereupon; electrical circuit means electrically isolated from said symbol bearing means, said electrical circuit means including at least one magnetically actuatable switch, said switch being fixed in a position whereby it is actuated only upon emplacement of said symbol bearing means on said display board in the correct predetermined correspondence therewith; an electrically actuated signal device connected in said electrical circuit means; power supply means connected in said electrical circuit means and adapted to actuate said signal device upon said electrical circuit means becoming conductive.
Claim 12
Dependent Claim
44 words
A learning feedback device according to claim 8 in which said electrical circuit means includes a plurality of said magnetically actuatable switches adapted to close said circuit only upon a predeterminEd correct placement of two or more symbol bearing means on said display board.
Claim 13
Dependent Claim
41 words
The learning feedback device according to claim 8 in which the location of a magnet included in said symbol bearing means is variable whereby multiple predetermined correct relationships with a given location of a plurality of magnetic switches can be attained.
Claim 14
Dependent Claim
173 words
A learning feedback device comprising: a display board adapted to receive logic means and one or more symbol bearing means on the surface thereof; at least one symbol bearing means sized for emplacement on said display board, said symbol bearing means including at least one magnet; said logic means disposed on the surface of said display board in electrically non-contacting relationship with said symbol bearing means, said logic means including at least one magnet; electrical circuit means having at least first and second magnetically actuatable switches adapted to become electrically conductive upon a predetermined correct emplacement of said symbol bearing means in relation to said logic means so that said magnet of said symbol bearing means actuates said first switch and said magnet of said logic means actuates said second switch; an electrically actuated signal device connected in said electrical circuit means; and power supply means connected in said electrical circuit means and adapted to actuate said signal device upon both said first and second switches of said electrical circuit means becoming conductive.
Claim 15
Dependent Claim
173 words
A learning feedback device comprising: a display board adapted to receive logic means and one or more symbol bearing means on the surface thereof; at least one symbol bearing means sized for emplacement on said display board, said symbol bearing means including at least one magnet; said logic means disposed on the surface of said display board in electrically non-contacting relationship with said symbol bearing means, said logic means including at least one magnet; electrical circuit means having at least first and second magnetically actuatable switches adapted to become electrically conductive upon a predetermined correct emplacement of said symbol bearing means in relation to said logic means so that said magnet of said symbol bearing means actuates said first switch and said magnet of said logic means actuates said second switch; an electrically actuated signal device connected in said electrical circuit means; and power supply means connected in said electrical circuit means and adapted to actuate said signal device upon both said first and second switches of said electrical circuit means becoming conductive.
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) | 1978-02-10 | 1978-08-12 | 1979-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-10 | 1982-08-12 | 1983-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-10 | 1986-08-12 | 1987-02-11 | $7700.00 | Window Closed / Lapsed |