Patent US3699709A successfully refreshed from Google Patents.
US3699709A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rods having means for direct cross-connecting, combined with separate elements for connecting same
Assignee: Individual
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Filing: 1971-11-15
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Granted: 1972-10-24
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Expires: 1991-11-15
Abstract
Abstract A structural toy which comprises a plurality of flat rods equipped with grooves along the longitudinal edges having widths corresponding with the thickness of the flat rods and depths corresponding with a quarter of their width. The flat rods have first perforations disposed along their longitudinal axis, adapted for receiving the ends of crosswise connectable further flat rods. The first perforations comprise three at least partly circular sections passing into each other and having diameters and center spacings corresponding with one half of the width of the flat rods. The flat rods have circular second perforations at a distance from their ends corresponding with one half of the width of the flat rods which have a diameter corresponding with one half of the width of the flat rods for the reception of coupling members, and the coupling members have at least one projection adjusted to the diameter of the first and second perforations in the flat rods.
Inventors
- 👤 Otto Schmidt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:40
CPC Classifications
A; A63; A63H; A63H33/00; A63H33/04; A63H33/10; A63H33/101; A63H33/06; A63H33/067; A63H33/08; Y; Y10; Y10S; Y10S206/00; Y10S206/82
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
218 words
A structural toy comprising a plurality of flat rods equipped with connecting means including marginal recesses as well as perforations, at least two of said flat rods being each equipped with grooves along the longitudinal edges constituting said marginal recesses, the width of said grooves corresponding with the thickness of said flat rods and the depth thereof corresponding with a quarter of the width of said flat rods, said perforations including first perforations disposed along the longitudinal axis of each of said two rods, said perforations being adapted for receiving the ends of further flat rods for connection by means of said grooves, said first perforations comprising three at least partly circular sections passing into each other and having diameters and center spacings corresponding with one half of the width of said flat rods, said flat rods having circular second perforations at a distance from their ends corresponding with one half of the width of said flat rods, said second perforations having a diameter corresponding with one half of the width of said flat rods for the reception of coupling elements, and separate means for coupling said rods, said means constituting said coupling elements, each of said coupling elements having at least one projection adjusted to the diameter of said first and second perforations in said flat rods.
Claim 2
Dependent Claim
218 words
A structural toy comprising a plurality of flat rods equipped with connecting means including marginal recesses as well as perforations, at least two of said flat rods being each equipped with grooves along the longitudinal edges constituting said marginal recesses, the width of said grooves corresponding with the thickness of said flat rods and the depth thereof corresponding with a quarter of the width of said flat rods, said perforations including first perforations disposed along the longitudinal axis of each of said two rods, said perforations being adapted for receiving the ends of further flat rods for connection by means of said grooves, said first perforations comprising three at least partly circular sections passing into each other and having diameters and center spacings corresponding with one half of the width of said flat rods, said flat rods having circular second perforations at a distance from their ends corresponding with one half of the width of said flat rods, said second perforations having a diameter corresponding with one half of the width of said flat rods for the reception of coupling elements, and separate means for coupling said rods, said means constituting said coupling elements, each of said coupling elements having at least one projection adjusted to the diameter of said first and second perforations in said flat rods.
Claim 3
Dependent Claim
81 words
The structural toy, as set forth in claim 1, wherein said coupling elements comprise joint bars including said one projection, the latter is snapper-like resiliently insertable into said circular perforations of said flat rods, and said coupling elements have in addition a circular perforation of a diameter equal with that of said perforations in said flat rods, whereby said projection and said perforation has a center distance corresponding with the double edge distance of said second perforations in said flat rods.
Claim 4
Dependent Claim
56 words
The structural toy, as set forth in claim 1, wherein said coupling elements comprise joint bars including two of said projections, the latter are snapper-like resiliently insertable into said circular perforations of said flat rods, and said projections have a center distance corresponding with the double edge distance of said second perforations in said flat rods.
Claim 5
Dependent Claim
45 words
The structural toy, as set forth in claim 1, which includes a plurality of supplementary flat rods of equal width and thickness, yet of different lengths, which correspond with total multiples of a basic measure, and with a different arrangement of edge grooves and perforations.
Claim 6
Dependent Claim
61 words
The structural toy, as set forth in claim 1, which includes connection members of a thickness equal with that of said flat rods in form of junction members with at least three perforations with diameters corresponding with one half of the width of said flat rods and with marginal distances corresponding with one half of the width of said flat rods.
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) | 1975-10-24 | 1976-04-24 | 1976-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-24 | 1980-04-24 | 1980-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-24 | 1984-04-24 | 1984-10-24 | $7700.00 | Window Closed / Lapsed |