Patent US4606311A successfully refreshed from Google Patents.
Patent US2634709A successfully refreshed from Google Patents.
Patent US4027402A successfully refreshed from Google Patents.
US4027402A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Novel educational toy
Assignee: Individual
•
Filing: 1976-04-02
•
Granted: 1977-06-07
•
Expires: 1996-04-02
Abstract
Abstract A case and question and answer combination cards having notches in various depths on both longitudinal sides. Question setting and answer setting plates with releasable fixing levers and an indication mechanism is provided on the case. A pair of ropes extend between the card and the question setting and answer setting plates and are connected to the indication mechanism. The ropes are pressed by the plates against both notched sides of the card to determine a correct or incorrect answer in accordance with the depth of the notches. The results are indicated by the indication mechanism.
Inventors
- 👤 Hsing-Ching Liu
- 👤 Lan-dih Liu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:15
CPC Classifications
G; G09; G09B; G09B3/00; G09B3/06; A; A63; A63F; A63F9/00; A63F9/0079; A63F9/18; G09B7/00; G09B7/06
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
150 words
An educational toy comprising a case, a plurality of changeable question and answer combination cards having notches in various depths from both longitudinal sides thereof, a series of question setting means with respective releasable fixing means, a series of answer setting means with respective releasable fixing means, an indication mechanism to indicate either an affirmative or a negative answer is made, a pair of ropes extending along the longitudinal direction between a card and said question setting means as well as said answer setting means, respectively, and connecting to said indication mechanism, thereby the said ropes will be separately pressed by said question setting means and answer setting against both said notched sides of said card to determine the answer either affirmative or negative in accordance with corresponding depths of said notches pressed against from said both setting means, so that the result will be indicated by said indication mechanism.
Claim 2
Dependent Claim
150 words
An educational toy comprising a case, a plurality of changeable question and answer combination cards having notches in various depths from both longitudinal sides thereof, a series of question setting means with respective releasable fixing means, a series of answer setting means with respective releasable fixing means, an indication mechanism to indicate either an affirmative or a negative answer is made, a pair of ropes extending along the longitudinal direction between a card and said question setting means as well as said answer setting means, respectively, and connecting to said indication mechanism, thereby the said ropes will be separately pressed by said question setting means and answer setting against both said notched sides of said card to determine the answer either affirmative or negative in accordance with corresponding depths of said notches pressed against from said both setting means, so that the result will be indicated by said indication mechanism.
Claim 3
Dependent Claim
23 words
The educational toy as set forth in claim 1, wherein the case is provided with a drawer for placing the said card thereon.
Claim 4
Dependent Claim
47 words
The educational toy as set forth in claim 1, wherein both the question setting means and answer setting means are in the form of an elongated plate which is provided at one end with a sector having a plurality of teeth on a peripherial outer rim thereof.
Claim 5
Dependent Claim
47 words
The educational toy as set forth in claim 3 wherein the fixing means are in the form of pivotable levers each biased by a spring, one end of the fixing means has an inwardly hooked tooth meshed with said teeth on said sector of said setting means.
Claim 6
Dependent Claim
35 words
The educational toy as set forth in claim 1, wherein both setting means are in the form of a push rod which is provided with a plurality of recesses in series on the stem thereof.
Claim 7
Dependent Claim
17 words
The educational toy as set forth in claim 5, wherein the fixing means is a spring trigger.
Claim 8
Dependent Claim
120 words
The educational toy as set forth in claim 1, wherein the indication mechanism consists of a pair of top closed hollow columns each receiving a floatable small balloon, and a pair of superposed chambers slidable with respect to each other, in which the upper chamber is divided into two compartments, one of which is communicated to one of said columns and has only one opening on bottom, while another compartment is communicated to said other column and has a plurality of openings in series on bottom provided that the position corresponding to said only one opening of said one compartment is blocked, and the lower chamber communicated with an air source is provided with two openings in parallel on top.
Claim 9
Dependent Claim
79 words
The educational toy as set forth in claim 1, wherein the indication mechanism consists of circuit means and a pair of non-conducting bars, one of which is provided with two inwardly protruded conducting points in parallel at upper and lower ends, and another bar is provided with an inwardly protruded conducting point at either end of upper and lower ends while an inwardly protruded conducting strip at opposite end and interrupted at the place corresponding to said conducting point.
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) | 1980-06-06 | 1980-12-06 | 1981-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-06-06 | 1984-12-06 | 1985-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-06-06 | 1988-12-06 | 1989-06-07 | $7700.00 | Window Closed / Lapsed |