US3803754A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blocks with non-circular slits and flat connectors having transversely bowed middle portions
Assignee: Individual
•
Filing: 1972-05-02
•
Granted: 1974-04-16
•
Expires: 1992-05-02
Abstract
Abstract An assembly kit comprises a plurality of prismatic building blocks each having at least one face portion provided with a narrow elongated slit of rectilinear non-circular cross-sectional outline. A plurality of connecting elements is provided, and each comprises a pair of connecting portions complementary to said slits and having transversely bowed portions which are resiliently deformed upon insertion into the slits of registering blocks. Other connecting elements are provided combining noncircular and circular portions for connecting rotatable parts such as wheels and levers for separably but non-rotatably connecting such pairs of adjoining blocks.
Inventors
- 👤 A Fischer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 01:14
CPC Classifications
A; A63; A63H; A63H33/00; A63H33/04; A63H33/10; A63H33/105; A63H33/101
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
114 words
An assembly kit, comprising a plurality of prismatic building blocks each having at least one face portion provided with sockets which are narrow elongated slits of generally rectilinear cross-sectional outline; and a plurality of elongated connecting elements of generally flat configuration, each comprising a pair of connecting portions with flat end portions having a generally rectilinear cross-sectional configuration complementary to said rectilinear slit outline and insertable into the corresponding slits of pairs of adjoining blocks for separably and nonrotatably connecting such pairs of adjoining blocks, and said connecting portions comprising means including a bowed resilient middle portion of said connecting element insertable upon deformation thereof into said slits for effecting a tight fit therein.
Claim 2
Dependent Claim
114 words
An assembly kit, comprising a plurality of prismatic building blocks each having at least one face portion provided with sockets which are narrow elongated slits of generally rectilinear cross-sectional outline; and a plurality of elongated connecting elements of generally flat configuration, each comprising a pair of connecting portions with flat end portions having a generally rectilinear cross-sectional configuration complementary to said rectilinear slit outline and insertable into the corresponding slits of pairs of adjoining blocks for separably and nonrotatably connecting such pairs of adjoining blocks, and said connecting portions comprising means including a bowed resilient middle portion of said connecting element insertable upon deformation thereof into said slits for effecting a tight fit therein.
Claim 3
Dependent Claim
16 words
An assembly kit as defined in claim 1, wherein said blocks are of generally rectilinear configuration.
Claim 4
Dependent Claim
96 words
An assembly kit as defined in claim 1, wherein said plurality of blocks includes a pair of adjoining blocks connected by one of said connecting elements, and wherein each of said pair of blocks has primary edge portions adjoining the primary edge portions of the other of said pair of blocks and defining therewith primary superficial interstices, and wherein each of said plurality of blocks has a plurality of adjoining modular surface portions having respective adjoining secondary edge portions defining between themselves secondary superficial interstices substantially identical to and serving to camouflage said primary superficial interstices.
Claim 5
Dependent Claim
14 words
An assembly kit as defined in claim 1, wherein said building blocks are hollow.
Claim 6
Dependent Claim
22 words
An assembly kit as defined in claim 3, wherein one of said secondary interstices forms the entrance to one of said sockets.
Claim 7
Dependent Claim
41 words
An assembly kit as defined in claim 3, each of said blocks is provided with a plurality of said sockets, and wherein the secondary interstices of each of said building blocks form entrances to respective ones of said plurality of sockets.
Claim 8
Dependent Claim
31 words
An assembly kit as defined in claim 3, wherein the secondary interstices of said pair of adjoining blocks together with said primary interstices form a substantially continuous superficial network of interstices.
Claim 9
Dependent Claim
36 words
An assembly kit as defined in claim 7, wherein said connecting elements are provided with depth stops liMiting the extent to which said connecting portions can be inserted into respective ones of said narrow elongated slits.
Claim 10
Dependent Claim
17 words
An assembly kit as defined in claim 8, wherein said primary edge portions are chamfered edge portions.
Claim 11
Dependent Claim
25 words
An assembly as defined in claim 3, wherein said primary interstices are parallel to respective ones of the secondary interstices of said pair of blocks.
Claim 12
Dependent Claim
41 words
An assembly kit as defined in claim 1, wherein each of said blocks has a hollow interior, and wherein said narrow elongated slits of each of said blocks are formed by guide walls extending into the hollow interior of the block.
Claim 13
Dependent Claim
45 words
An assembly kit as defined in claim 3, wherein said narrow elongated slits have cross-sectional widths equal to the cross-sectional widths of the respectively associated secondary interstices, and have cross-sectional lengths at most substantially equal to the cross-sectional lengths of the respectively associated secondary interstices.
Claim 14
Dependent Claim
27 words
An assembly kit as defined in claim 9, wherein said primary interstices defined by said chamfered primary edge portions form superficial channels of generally U-shaped cross-sectional outline.
Claim 15
Dependent Claim
17 words
An assembly kit as defined in claim 1, wherein said connecting elements consist of an elastic material.
Claim 16
Dependent Claim
16 words
An assembly kit as defined in claim 1, whereiin said connecting elements consist of a polyamide.
Claim 17
Dependent Claim
20 words
An assembly kit as defined in claim 1, wherein said connecting portions are tapered to facilitate insertion into said sockets.
References Cited (Backward Citations)
US1191884A
Cited
CH388158A
Cited
US3224137A
Cited
US3205611A
Cited
US3488881A
Cited
US3516194A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-04-15 | 1977-10-15 | 1978-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-15 | 1981-10-15 | 1982-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-15 | 1985-10-15 | 1986-04-16 | $7700.00 | Window Closed / Lapsed |