Patent US4752269A successfully refreshed from Google Patents.
US4752269A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reconfigurable, interchangeable and interlocking playthings, blocks or construction pieces
Assignee: Individual
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Filing: 1986-05-09
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Granted: 1988-06-21
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Expires: 2006-05-09
Abstract
Abstract Three-dimensional, reconfigurable playthings or blocks may be interconnected in a myriad of designs. A plurality of generally flat blocks of substantially uniform thickness in varying geometric outlines and contours are interconnected through the utilization of defined notches in one or more sides of any of the blocks to be configured. Generally, the notch is substantially equal to the thickness of the various blocks so that they may be interconnected in an orthogonal fashion. Additionally, the blocks, through the utilization of the notch, may be configured in a generally cantilevered fashion through the use of two or more points for contact friction fitting. Use of flexible materials enhances the safety of the blocks in an environment of a children's toy, and additional embodiments utilizing ribbed notches further enhance the interconnection of the blocks to allow additional exercise of imagination in configuring designs.
Inventors
- 👤 Jonathan Feinstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:41
CPC Classifications
A; A63; A63H; A63H33/00; A63H33/04; A63H33/06
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
163 words
A reconfigurable set of interconnectable playthings comprising: a plurality of three-dimensional shaped pieces having substantially uniform thickness in at least one portion proximate to an edge and each having one or more sides of varying lengths connecting front and back faces of substantially identical outline; only one side in at least one of said objects further having a generally rectangular notch defined therein, said notch having a width substantially equal to said uniform thickness and a selected depth and including a plurality of ribs extending from said front face to said back face along one or more edges of said notch, said ribs being formed of a generally elastomeric material adhered to the edges of said notch, whereby said ribs enhance the friction fit of others of said objects; said notch being adapted to receive by friction fit a tip or corner of others of said objects in a cantilever fashion along a side or point formed at the juncture of two sides.
Claim 2
Dependent Claim
163 words
A reconfigurable set of interconnectable playthings comprising: a plurality of three-dimensional shaped pieces having substantially uniform thickness in at least one portion proximate to an edge and each having one or more sides of varying lengths connecting front and back faces of substantially identical outline; only one side in at least one of said objects further having a generally rectangular notch defined therein, said notch having a width substantially equal to said uniform thickness and a selected depth and including a plurality of ribs extending from said front face to said back face along one or more edges of said notch, said ribs being formed of a generally elastomeric material adhered to the edges of said notch, whereby said ribs enhance the friction fit of others of said objects; said notch being adapted to receive by friction fit a tip or corner of others of said objects in a cantilever fashion along a side or point formed at the juncture of two sides.
Claim 3
Dependent Claim
16 words
The appaatus of claim 1 wherein said pieces are formed of a generally contour-retaining elastomeric material.
Claim 4
Dependent Claim
25 words
The apparatus of claim 2 wherein said generally contour-retaining elastomeric material further contains a reinforcing mesh, shaped to generally match the shape of the piece.
Claim 5
Dependent Claim
24 words
The apparatus of claim 3 wherein said reinforcing mesh in combination with said elastomeric material retains said piece in one or more selected shapes.
Claim 6
Dependent Claim
33 words
The reconfigurable set of claim 1 further including adjustable mounting means compatible with said notch to provide selective positioning of at least one piece in one of a plurality of selected angular orientations.
Claim 7
Dependent Claim
16 words
The apparatus of claim 1 wherein one or more of said pieces are generally triangularly shaped.
Claim 8
Dependent Claim
23 words
The apparatus of claim 6 wherein one or more sides of at least one of said generally triangularly shaped pieces are convexly curved.
Claim 9
Dependent Claim
23 words
The apparatus of claim 6 wherein one or more sides of at least one of said generally triangularly shaped pieces are concavely curved.
Claim 10
Dependent Claim
16 words
The apparatus of claim 1 wherein one or more of said pieces are generally rectangularly shaped.
Claim 11
Dependent Claim
23 words
The apparatus of claim 9 wherein one or more sides of at least one of said generally rectangularly shaped pieces are convexly curved.
Claim 12
Dependent Claim
23 words
The apparatus of claim 9 wherein one or more sides of at least one of said generally rectangularly shaped pieces are concavely curved.
Claim 13
Dependent Claim
16 words
The apparatus of claim 1 wherein one or more of said pieces are generally circularly shaped.
Claim 14
Dependent Claim
172 words
A plurality of interconnectable, contoured construction blocks for constructing artistic designs of selectable composition, each of said contoured blocks comprising: front and back faces of a selected outline, one or more side faces of a first thickness connecting said front and back faces of the edges thereof; at least one of said faces in at least one of said contoured pieces having a generally rectangular notch defined therein of a width approximately equal to said first thickness and a selected depth; said notch being adapted to accept others of said contoured pieces along any side face or at a juncture of any two side faces which forms an included angle of less than about ninety degrees; said notch being provided with frictional elements extending from said front face to said back face, said frictional elements are generally elastomeric ribs comprising a separate element to be inserted into said notch and bonded integrally with the remainder of said contoured block, whereby said frictional elements enhance the fit of others of said contoured pieces.
Claim 15
Dependent Claim
172 words
A plurality of interconnectable, contoured construction blocks for constructing artistic designs of selectable composition, each of said contoured blocks comprising: front and back faces of a selected outline, one or more side faces of a first thickness connecting said front and back faces of the edges thereof; at least one of said faces in at least one of said contoured pieces having a generally rectangular notch defined therein of a width approximately equal to said first thickness and a selected depth; said notch being adapted to accept others of said contoured pieces along any side face or at a juncture of any two side faces which forms an included angle of less than about ninety degrees; said notch being provided with frictional elements extending from said front face to said back face, said frictional elements are generally elastomeric ribs comprising a separate element to be inserted into said notch and bonded integrally with the remainder of said contoured block, whereby said frictional elements enhance the fit of others of said contoured pieces.
Claim 16
Dependent Claim
16 words
The blocks of claim 13 wherein each block is composed of a flexible, generally elastomeric material.
Claim 17
Dependent Claim
30 words
The blocks of claim 13 wherein one or more blocks further include at least one fully-contained shape retaining reinforcing mesh to retain said blocks in one or more selected shapes.
Claim 18
Dependent Claim
54 words
The blocks of claim 13 further including at least one base block adapted for substantially stationary positioning and having a second member rotatably connected to said base block so as to be positionable in one of a plurality of selected angular orientations with said base block, said second member being compatible with said notch.
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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) | 1991-06-21 | 1991-12-21 | 1992-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-06-21 | 1995-12-21 | 1996-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-06-21 | 1999-12-21 | 2000-06-21 | $7700.00 | Window Closed / Lapsed |