Patent US2761353A successfully refreshed from Google Patents.
Patent US3708893A successfully refreshed from Google Patents.
US3708893A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Educational game
Assignee: Individual
•
Filing: 1971-11-12
•
Granted: 1973-01-09
•
Expires: 1991-11-12
Abstract
Abstract An educational game includes a housing having slots for insertion of coded cards and having a receptacle for a master coded key card. When a correctly sequenced subset of cards all coded like the master code are inserted, a circuit conditioned by the key card releases a shuttered window on the housing to expose a picture formed by the cards. On each card, the position of a hole indicates the value of each coding parameter. The location of another hole indicates the card''s sequence in the coded subset. The housing contains a set of electrical contact bars displaced laterally by the key card to set the contacts into positions indicative of the master coding. Only if the inserted cards match the master codes, in the correct sequence, will the holes be aligned with the contacts so as to complete an electrical circuit opening the shutter.
Inventors
- 👤 J Murphy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 04:43
CPC Classifications
G; G09; G09B; G09B7/00; G09B7/02
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
86 words
An educational game using coded card strips each containing a design segment, a like coded subset of said card strips being insertable into a housing to form a graphic display obscured from view, the improvement comprising: a key card marked with a master code and receivable in said housing, and means conditioned by said received key card for exposing said graphic display to view only when a subset of said card strips coded like said master code are inserted in said housing in a correct sequence.
Claim 2
Dependent Claim
86 words
An educational game using coded card strips each containing a design segment, a like coded subset of said card strips being insertable into a housing to form a graphic display obscured from view, the improvement comprising: a key card marked with a master code and receivable in said housing, and means conditioned by said received key card for exposing said graphic display to view only when a subset of said card strips coded like said master code are inserted in said housing in a correct sequence.
Claim 3
Dependent Claim
32 words
An educational game according to claim 1 further comprising: inhibit means for preventing exposure of said graphic display when less than a complete subset of said like coded card strips are inserted.
Claim 4
Dependent Claim
28 words
An educational game according to claim 1 wherein said means for exposing includes an electrical series circuit interrupted by insertion of an incorrectly coded or sequenced card strip.
Claim 5
Dependent Claim
27 words
An educational game according to claim 3 wherein said design is obscured by a shutter, release of said shutter being enabled by said uninterrupted electrical series circuit.
Claim 6
Dependent Claim
46 words
An educational game according to claim 1 wherein said means for exposing includes a set of code sensing members within said housing, said key card conditioning said members into an arrangement indicative of said master code, said members sensing the codes of said inserted card strips.
Claim 7
Dependent Claim
30 words
An educational game according to claim 5 wherein said members comprise electrical contact bars conditioned to establish a circuit only upon insertion of card strips coded like said master card.
Claim 8
Dependent Claim
41 words
An educational game according to claim 6 wherein said master key has an edge offset to define said master code, said offset edge displacing said bars into said master code indicative arrangement when said master key is received in said housing.
Claim 9
Dependent Claim
45 words
An educational game according to claim 7 wherein each of said card strips is coded by a set of holes through said card, said holes registering with the contacts of said displaced bars only when said inserted card strip is coded like said master code.
Claim 10
Dependent Claim
52 words
An educational game according to claim 6 further comprising sequence sensing contacts uniquely positioned in respective card strip receiving portions of said housing, each card strip further containing a sequence indicating element cooperating with said sequence sensing contacts to establish said circuit only when said card strips are inserted in correct sequence.
Claim 11
Dependent Claim
94 words
In an educational game of the type using cards each having a coded set of parameters, a correctly sequenced, like coded subset of said cards forming a unitary design, said cards being insertable into a housing to form said design behind a shuttered window, the improvement comprising: slidable contact bars in said housing, a key card adapted to dispLace said slidable contact bars to offset positions defining a master code, correctly sequenced, inserted cards coded like said master code registering with said displaced contact bars to complete a circuit enabling said shutter to open.
Claim 12
Dependent Claim
94 words
In an educational game of the type using cards each having a coded set of parameters, a correctly sequenced, like coded subset of said cards forming a unitary design, said cards being insertable into a housing to form said design behind a shuttered window, the improvement comprising: slidable contact bars in said housing, a key card adapted to dispLace said slidable contact bars to offset positions defining a master code, correctly sequenced, inserted cards coded like said master code registering with said displaced contact bars to complete a circuit enabling said shutter to open.
Claim 13
Dependent Claim
38 words
A game according to claim 10 wherein each bar includes a set of electrical contacts spring biased to project through a code indicating hole in said correctly sequenced and coded card to complete a portion of said circuit.
Claim 14
Dependent Claim
30 words
A game according to claim 11 wherein said bars are slidable perpendicular to said cards, and wherein an edge of said key card displaces said bars against respective bias springs.
Claim 15
Dependent Claim
18 words
A game according to claim 11 wherein said key card includes means for latched retention in said housing.
Claim 16
Dependent Claim
48 words
A game according to claim 11 wherein each card in a like coded subset includes a sequence indicating hole, and sequence detecting contacts in said housing, biased to project through said sequence indicating holes to complete said shutter circuit only when the cards are inserted in correct sequence.
Claim 17
Dependent Claim
32 words
A game according to claim 11 further comprising parallel circuit means opened by insertion of a card for inhibiting opening of said shutter when an imcomplete subset of cards have been inserted.
Claim 18
Dependent Claim
108 words
An educational game comprising: a housing having a shuttered window, a set of cards adapted for insertion into slots in said housing, each card being coded by a plurality of parameters, a subset of said cards having the same coding forming a picture behind the shutter of said window when inserted in correct sequence, a key card adapted for insertion into a receptacle in said housing and containing a master code thereon, and circuit means conditioned by said inserted key card for releasing said shutter only when a subset of cards coded in accordance with the key card master code is inserted into said slots in correct sequence.
Claim 19
Dependent Claim
108 words
An educational game comprising: a housing having a shuttered window, a set of cards adapted for insertion into slots in said housing, each card being coded by a plurality of parameters, a subset of said cards having the same coding forming a picture behind the shutter of said window when inserted in correct sequence, a key card adapted for insertion into a receptacle in said housing and containing a master code thereon, and circuit means conditioned by said inserted key card for releasing said shutter only when a subset of cards coded in accordance with the key card master code is inserted into said slots in correct sequence.
Claim 20
Dependent Claim
50 words
A game according to claim 16 wherein the sequence of each card in a like coded subset is indicated by the location of a sequence hole through that card, there being a number of possible sequence hole locations corresponding respectively to available sequential positions of a card in said subset.
Claim 21
Dependent Claim
64 words
A game according to claim 17 wherein said housing comprises: a first segmented circuit board, a set of spring biased sequence sensing contacts each situated at the unique sequence hole location associated with a respective slot, insertion of a correctly sequenced card enabling the corresponding biased contact to project through the sequence indicating hole of that card into electrical circuit with said first board.
Claim 22
Dependent Claim
106 words
A game according to claim 16 wherein each card contains a row of possible hole locations for each parameter, and wherein said housing further comprises: a segmented circuit board for each parameter, a slidable, biased contact containing bar for each parameter, said key card being configured to displace laterally each bar by an amount indicative of the master code value of the corresponding parameter, so that upon insertion of a card having a master card corresponding parameter value, the parameter hole will register with a contact on said laterally displaced bar, enabling that contact to project through the card into circuit with the corresponding board section.
Claim 23
Dependent Claim
51 words
A game according to claim 19 wherein said contacts and circuit boards are included in a series circuit including a shutter release solenoid, application of voltage to said circuit energizing said solenoid to release said shutter except if said circuit is interrupted by insertion of an incorrectly coded or sequenced card.
Claim 24
Dependent Claim
37 words
A game according to claim 20 further comprising a fault buzzer and circuit means for sounding said buzzer when said voltage is applied if an incorrect or incomplete subset of cards has been inserted in said slots.
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) | 1976-01-09 | 1976-07-10 | 1977-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-09 | 1980-07-10 | 1981-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-09 | 1984-07-10 | 1985-01-09 | $7700.00 | Window Closed / Lapsed |