Patent US4796579A successfully refreshed from Google Patents.
Patent US3689075A successfully refreshed from Google Patents.
US3689075A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Three-dimensional puzzles
Assignee: Individual
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Filing: 1970-07-31
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Granted: 1972-09-05
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Expires: 1990-07-31
Abstract
Abstract An educational device in the form of a three-dimensional puzzle comprises a plurality of interconnectable members. Each of the members is provided with a respective face adapted for opposing a respective face of another of said members. A resilient element is provided for interposition between respective opposing faces of the members and is operatively associated with the opposing faces for interconnecting the members therebetween.
Inventors
- 👤 Louis Adelsohn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:24
CPC Classifications
A; A63; A63F; A63F9/00; A63F9/06; A63F9/12; A63F9/1208; A63F2009/1216; A63F2009/122; A63F2009/124; A63F2250/00; A63F2250/18; A63F9/1204
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
241 words
An educational device comprising a plurality of interconnectable members each having a face adapted for opposing a respective face of another of said members to constitute respective pairs of opposing faces, resilient means interposable between opposing faces of each of said pairs of opposing faces for detachably interconnecting said members therebetween, each of said members being provided with a bore extending inwardly of each of said faces, said resilient means comprising a resilient elongate body including longitudinally extending opposite end portions and an intermediary portion of increased cross-sectional area, said intermediary portion having longitudinally opposed surfaces extending generally transversely of said body, each of said longitudinally extending opposite end portions being adapted for seating in opposing bores in each of said pairs of opposing faces of said members with said opposed surfaces of said resilient means each being disposed adjacent to a respective opposing face of said members, said longitudinally extending opposite end portions of said resilient means being coaxially aligned with one another, said opposed surfaces of said intermediary portion of saId resilient means being inclined relative to said longitudinally extending opposite end portions and said opposing bores being normal to said respective opposing faces such that said longitudinally extending opposite end portions are resiliently deformed relative to said opposed surfaces of said intermediary portion when seated in said opposing bores in said members to an extent sufficient to cause said opposing faces to abut for resiliently interconnecting said members.
Claim 2
Dependent Claim
241 words
An educational device comprising a plurality of interconnectable members each having a face adapted for opposing a respective face of another of said members to constitute respective pairs of opposing faces, resilient means interposable between opposing faces of each of said pairs of opposing faces for detachably interconnecting said members therebetween, each of said members being provided with a bore extending inwardly of each of said faces, said resilient means comprising a resilient elongate body including longitudinally extending opposite end portions and an intermediary portion of increased cross-sectional area, said intermediary portion having longitudinally opposed surfaces extending generally transversely of said body, each of said longitudinally extending opposite end portions being adapted for seating in opposing bores in each of said pairs of opposing faces of said members with said opposed surfaces of said resilient means each being disposed adjacent to a respective opposing face of said members, said longitudinally extending opposite end portions of said resilient means being coaxially aligned with one another, said opposed surfaces of said intermediary portion of saId resilient means being inclined relative to said longitudinally extending opposite end portions and said opposing bores being normal to said respective opposing faces such that said longitudinally extending opposite end portions are resiliently deformed relative to said opposed surfaces of said intermediary portion when seated in said opposing bores in said members to an extent sufficient to cause said opposing faces to abut for resiliently interconnecting said members.
Claim 3
Dependent Claim
58 words
An educational device as claimed in claim 1 wherein said longitudinally extending opposite end portions of said resilient means are each substantially cylindrical and include a plurality of longitudinally spaced annular ribs, and wherein said bores are substantially cylindrical and include a plurality of longitudinally spaced projections for interlocking between said spaced annular ribs of said resilient means.
Claim 4
Dependent Claim
36 words
An educational device as claimed in claim 1 wherein the maximum transverse cross-sectional area of said bores is greater than the maximum transverse cross-sectional area of said longitudinally extending opposite end portions of said resilient means.
Claim 5
Dependent Claim
32 words
An educational device as claimed in claim 1 wherein said bores include an uppermost portion of increased cross-sectional area for receiving a longitudinal portion of said intermediary portion of said resilient means.
Claim 6
Dependent Claim
15 words
An educational device as claimed in claim 1 wherein each of said members is hollow.
Claim 7
Dependent Claim
18 words
An educational device as claimed in claim 1 wherein said members when interconnected define an assembled hollow unit.
Claim 8
Dependent Claim
253 words
An educational device comprising a plurality of interconnectable members each having a face adapted for opposing a respective face of another of said members to constitute respective pairs of opposing faces, resilient means interposable between opposing faces of each of said pairs of opposing faces for detachably interconnecting said members therebetween, one face in each of said pairs of opposing faces being provided with a bore extending inwardly therefrom and the other face in each of said pairs of opposing faces including said resilient means fixedly connected thereto and extending outwardly therefrom, said resilient means being adapted for seating in the opposing bore of said one face in each of said pairs of opposing faces, said resilient means comprising an elongate cylindrical plug extending outwardly at a first angle relative to each said other face in each of said pairs of opposing faces, each of said bores extending inwardly at a second angle relative to each said one face in each of said pairs of opposing faces, said first angle and said second angle being unequal relative to one another, said first angle being determined in a first plane passing longitudinally through said plug perpendicularly with respect to said other face in each of said pairs of opposing faces, and said second angle being determined in a second plane passing longitudinally through said bore perpendicularly with respect to said one face in each of said pairs of opposing faces, each of said first plane being respectively askew relative to said said second plane.
Claim 9
Dependent Claim
253 words
An educational device comprising a plurality of interconnectable members each having a face adapted for opposing a respective face of another of said members to constitute respective pairs of opposing faces, resilient means interposable between opposing faces of each of said pairs of opposing faces for detachably interconnecting said members therebetween, one face in each of said pairs of opposing faces being provided with a bore extending inwardly therefrom and the other face in each of said pairs of opposing faces including said resilient means fixedly connected thereto and extending outwardly therefrom, said resilient means being adapted for seating in the opposing bore of said one face in each of said pairs of opposing faces, said resilient means comprising an elongate cylindrical plug extending outwardly at a first angle relative to each said other face in each of said pairs of opposing faces, each of said bores extending inwardly at a second angle relative to each said one face in each of said pairs of opposing faces, said first angle and said second angle being unequal relative to one another, said first angle being determined in a first plane passing longitudinally through said plug perpendicularly with respect to said other face in each of said pairs of opposing faces, and said second angle being determined in a second plane passing longitudinally through said bore perpendicularly with respect to said one face in each of said pairs of opposing faces, each of said first plane being respectively askew relative to said said second plane.
Claim 10
Dependent Claim
29 words
An educational device as claimed in claim 7 wherein each plug and bore includes longitudinally spaced annular ribs and longitudinally spaced projections respectively for transversely interlocking with one another.
Claim 11
Dependent Claim
22 words
An educational device as claimed in claim 7 wherein said members are each arcuate and interconnectable to constitute an assembled hollow unit.
Claim 12
Dependent Claim
46 words
An educational device as claimed in claim 9 wherein each of said arcuate members includes an inner and outer surface relative to the assembled hollow unit such that respectively cooperating bores and plugs are laterally interposed between the inner and outer surfaces of the hollow unit.
Claim 13
Dependent Claim
27 words
An educational device as claimed in claim 10 wherein said plugs and bores are laterally interposed medially between the inner and outer surfaces of the hollow unit.
Claim 14
Dependent Claim
34 words
An educational device as claimed in claim 10 wherein said plugs and bores are laterally interposed between the inner and outer surfaces of the hollow unit substantially with greater proximity to the inner surface.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-09-05 | 1976-03-06 | 1976-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-05 | 1980-03-06 | 1980-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-05 | 1984-03-06 | 1984-09-05 | $7700.00 | Window Closed / Lapsed |