Patent US3844664A successfully refreshed from Google Patents.
US3844664A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Icosahedron disc
Assignee: Individual
•
Filing: 1973-08-10
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Granted: 1974-10-29
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Expires: 1993-08-10
Abstract
Abstract This invention relates to a structural joint for the construction of ''''icosahedron structures''''.
Inventors
- 👤 J Hogan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:02
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/18; E04B1/19; E04B1/1903; E04B2001/1918; E04B2001/1924; E04B2001/1933; E04B2001/1945; E04B2001/1957; E04B2001/1963; Y; Y10; Y10S; Y10S52/00; Y10S52/10; Y10T; Y10T403/00; Y10T403/34; Y10T403/341; Y10T403/342
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
101 words
A structural joint consisting of a plane disc composed of five identical rigid sectors that generate 60 degrees each, wherein each sector has a means for the attachment of strut material; one additional rigid sector that generates slightly less than 60 degrees, leaving a wedge-shaped gap of considerably less than 60 degrees, which when combined with the adjoining rigid sector that generates slightly less than 60 degrees, generates 60 degrees; furthermore the rigid sector that generates slightly less than 60 degrees is used as an overlapping plate with the adjacent 60 degree sector it is separated from by the wedge-shaped gap.
Claim 2
Dependent Claim
101 words
A structural joint consisting of a plane disc composed of five identical rigid sectors that generate 60 degrees each, wherein each sector has a means for the attachment of strut material; one additional rigid sector that generates slightly less than 60 degrees, leaving a wedge-shaped gap of considerably less than 60 degrees, which when combined with the adjoining rigid sector that generates slightly less than 60 degrees, generates 60 degrees; furthermore the rigid sector that generates slightly less than 60 degrees is used as an overlapping plate with the adjacent 60 degree sector it is separated from by the wedge-shaped gap.
Claim 3
Dependent Claim
53 words
A structural joint as claimed in claim 1 in which said attachment means are enclosed by an identical three-sided ridge on each of the five identical sectors, the ridge so placed on each of said five sectors that it will position a straight piece of strut material so as to bisect the sector.
Claim 4
Dependent Claim
36 words
A structural joint as claimed in claim 2 in which said attachment means within the perimeter of said ridge are two apertures for fastening each piece of strut material to each of the five identical sectors.
Claim 5
Dependent Claim
43 words
A structural joint as claimed in claim 3 having two apertures on the sector which generates slightly less than 60 degrees, the apertures so placed as to align with the apertures of the said adjacent 60 degree sector when said sectors are overlapped.
Claim 6
Dependent Claim
24 words
A structural joint as claimed in claim 1 in which an aperture of slight diameter is positioned at the center of the plane disc.
Claim 7
Dependent Claim
17 words
A structural joint as claimed in claim 1 in which the boundaries between the sectors are flexible.
Claim 8
Dependent Claim
25 words
A structural joint as claimed in claim 1 which can be loaded with struts in either a two-dimensional plane or in a convex three-dimensional space.
Claim 9
Dependent Claim
54 words
A structural joint as claimed in claim 1 in which said attachment means comprise two apertures on each of the five identical sectors, the apertures so placed on the individual sector that they will serve as apertures with which a straight piece of strut material can be attached so as to bisect the sector.
Claim 10
Dependent Claim
43 words
A structural joint as claimed in claim 8 having two apertures on the sector which generates slightly less than 60 degrees, the apertures so placed as to align with the apertures of the said adjacent 60 degree sector when said sectors are overlapped.
Claim 11
Dependent Claim
19 words
A structural joint as claimed in claim 1 in which said attachment means is a bolt and nut means.
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) | 1977-10-28 | 1978-04-29 | 1978-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-28 | 1982-04-29 | 1982-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-28 | 1986-04-29 | 1986-10-29 | $7700.00 | Window Closed / Lapsed |