Patent US3696533A successfully refreshed from Google Patents.
US3696533A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Set of toy blocks
Assignee: Individual
•
Filing: 1971-04-06
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Granted: 1972-10-10
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Expires: 1991-04-06
Abstract
Abstract A set of toy blocks for performing various arithmetical processes, particularly for children, comprising calculating or problem blocks, which visibly represent arithmetical problems, e.g. problems of addition or multiplication, or the individual quantities constituting the said problems, and result blocks which visibly represent the corresponding results and which are arranged for being composed with the problem blocks. The problem blocks are designed with through channels which are located in exactly the same place in all problem blocks. In the channels piston bodies are accommodated which can be displaced longitudinally by interaction with pins on or holes in the result blocks in such a way that when problem and result are in conformity, an assemblage with an unbroken surface is formed.
Inventors
- 👤 Hans Mortensen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 07:33
CPC Classifications
G; G09; G09B; G09B19/00; G09B19/02
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
250 words
A set of toy blocks for preforming various arithmetical processes, particularly for children, comprising calculating or problem blocks, which visibly represent arithmetical problems, e.g., problems of addition or multiplication, or the individual quantities constituting the said problems, and result blocks which visibly represent the corresponding results and which are arranged for being composed with the problem blocks, the said problem blocks and result blocks being so arranged that they can only be composed so as to engage each other perfectly so as to form an assemblage with an unbroken surface when representing problems and results corresponding to each other, characterized in that the problem blocks are designed with through channels which are located in exactly the same place in all problem blocks and the mouths of which through the surface walls of the blocks have a diameter that is reduced as compared with the diameter of the channels, while in the channels piston bodies are accommodated which can be displaced longitudinally and comprise a central part, fitting loosely in he channels and extending over part of the longitudinal direction of the latter, and end parts which fit loosely in the mouths of the channels and are made so as to have lengths that differ from each other in such a way that by problem blocks being combined with result blocks they interact with pins on or holes in the blocks in such a way that when problem and result are in conformity, an assemblage with an unbroken surface is formed.
Claim 2
Dependent Claim
250 words
A set of toy blocks for preforming various arithmetical processes, particularly for children, comprising calculating or problem blocks, which visibly represent arithmetical problems, e.g., problems of addition or multiplication, or the individual quantities constituting the said problems, and result blocks which visibly represent the corresponding results and which are arranged for being composed with the problem blocks, the said problem blocks and result blocks being so arranged that they can only be composed so as to engage each other perfectly so as to form an assemblage with an unbroken surface when representing problems and results corresponding to each other, characterized in that the problem blocks are designed with through channels which are located in exactly the same place in all problem blocks and the mouths of which through the surface walls of the blocks have a diameter that is reduced as compared with the diameter of the channels, while in the channels piston bodies are accommodated which can be displaced longitudinally and comprise a central part, fitting loosely in he channels and extending over part of the longitudinal direction of the latter, and end parts which fit loosely in the mouths of the channels and are made so as to have lengths that differ from each other in such a way that by problem blocks being combined with result blocks they interact with pins on or holes in the blocks in such a way that when problem and result are in conformity, an assemblage with an unbroken surface is formed.
Claim 3
Dependent Claim
131 words
A set of toy blocks as claimed in claim 1, characterized in that each of the problem blocks has three piston bodies, the end parts of which can pass through corresponding apertures in the surface, intended for contact with a problem block, of a result block, so that two of the piston bodies actuate one end of a double-armed rocking member mounted in the interior of the result block, while the third piston body actuates the other end of the said rocking member, while the lengths of the end parts of the piston bodies accommodated in the problem blocks are so adapted that only problem blocks and result blocks representing problems and results corresponding to each other can be composed with each other for forming an assemblage with an unbroken surface.
Claim 4
Dependent Claim
44 words
A set of toy blocks as claimed in claim 2, characterized in that the end parts on the piston bodies in the problem blocks actuate the rocking member in the result blocks via additional piston bodies which are accommodated displaceably in the result blocks.
Claim 5
Dependent Claim
104 words
A set of toy blocks as claimed in claim 1, where each problem block represents a digit included in an arithmetical process, e.g., an addend or a factor, characterized in that the total number of problem blocks can be composed with an optional other problem block for forming an arithmetical problem, and that the combination of two problem blocks formed hereby can only be composed with a result block so as to form an assemblage with an unbroken surface by means of the result block representing the correct result of the arithmetical problem, but not by means of the result blocks representing other results.
Claim 6
Dependent Claim
60 words
A set of toy blocks as claimed in claim 4, characterized in that each of the problem blocks has its specific color corresponding to the individual digits, and that for every possible combination of two problem blocks a result block is at disposal which shows the correct result and the color or color combination corresponding to the particular problem blocks.
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) | 1975-10-10 | 1976-04-10 | 1976-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-10 | 1980-04-10 | 1980-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-10 | 1984-04-10 | 1984-10-10 | $7700.00 | Window Closed / Lapsed |