US3960460A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Connector for elements made of structural foam
Assignee: Individual
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Filing: 1974-07-11
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Granted: 1976-06-01
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Expires: 1994-07-11
Abstract
Abstract Elements of structural foam are connected by pushing into each of them a substantially blade-shaped portion of a connector, which portion has at least one transverse hole, whereupon a nail-like or similar member is pushed into the structural-foam element so as to traverse the hole and lock the blade-shaped portion in the structural-foam element. The blade-shaped portions are connected with one another. A connector for carrying out the method is also disclosed.
Inventors
- 👤 Artur Fischer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 02:28
CPC Classifications
B; B29; B29C; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/114; B29C66/1142; A; A63; A63H; A63H19/00; A63H19/36; A63H33/00; A63H33/04; A63H33/42; B29C65/00; B29C65/56; B29C65/562; B29C65/564; B29C66/40; B29C66/41; B29C66/43; B29C66/70; B29C66/72; B29C66/727; E; E04; E04B; E04B1/00; E04B1/38; E04B1/61; E04B1/6108; E04B1/612; E04B1/6145; E04B1/6162; F; F16; F16B; F16B15/00; F16B19/00; F16B21/00; F16B21/10; F16B5/00; F16B5/0004; F16B5/0084; F16B5/0088; Y; Y10; Y10S; Y10S403/00; Y10S403/15; Y10T; Y10T403/00; Y10T403/55; Y10T403/57; Y10T403/5741
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
168 words
A connector for elements made of structural foam, comprising a first and a second elongated planar blade-shaped connecting portion having tips, each of said connecting portions having cutting edges adapted to cut a slit-like incision into the structural foam elements as said connecting portions penetrate therein, said connecting portions being connected with one another and each having at least one hole extending transversely of its elongation; a pair of elongated locking members each adapted to be driven into one of said structural foam elements and through one of said holes, so as to extend transverse of the respective connecting portion and lock the same to the structural foam element; and an intermediate portion located between and connected with said correcting portions and forming an abutment flange for said structural foam elements, said cutting edges diverging continuously from said tips to said intermediate portion so that said connecting portions can penetrate and be extracted from said structural foam elements via said slit-like incision without causing crumbling of the latter.
Claim 2
Dependent Claim
168 words
A connector for elements made of structural foam, comprising a first and a second elongated planar blade-shaped connecting portion having tips, each of said connecting portions having cutting edges adapted to cut a slit-like incision into the structural foam elements as said connecting portions penetrate therein, said connecting portions being connected with one another and each having at least one hole extending transversely of its elongation; a pair of elongated locking members each adapted to be driven into one of said structural foam elements and through one of said holes, so as to extend transverse of the respective connecting portion and lock the same to the structural foam element; and an intermediate portion located between and connected with said correcting portions and forming an abutment flange for said structural foam elements, said cutting edges diverging continuously from said tips to said intermediate portion so that said connecting portions can penetrate and be extracted from said structural foam elements via said slit-like incision without causing crumbling of the latter.
Claim 3
Dependent Claim
14 words
A connector as defined in claim 1, wherein said locking members are substantially rod-shaped.
Claim 4
Dependent Claim
15 words
A connector as defined in claim 1, wherein said locking members have substantially cross-shaped cross-sections.
Claim 5
Dependent Claim
25 words
A connector as defined in claim 1, wherein said locking members have one end provided with a tip, and another end provided with a head.
Claim 6
Dependent Claim
20 words
A connector as defined in claim 1, wherein said connecting portions are located at least substantially in a common plane.
Claim 7
Dependent Claim
189 words
A connector for elements made of structural foam, comprising a first and a second elongated planar blade-shaped connecting portion having tips, each of said connecting portions being connected with one another and having planar cutting edges located at least substantially in a common plane with said planar connecting portions, and each having at least one hole extending transversely of its elongation; a pair of elongated locking members having substantially cross-shaped cross-sections, each adapted to be driven into one of said structural foam elements and through one of said holes, so as to extend transverse of the respective connecting portions and lock the same to the structural foam element; and an intermediate portion located between and connected with said connecting portions and forming an abutment flange for said structural foam elements; and an intermediate portion located between and connected with said connecting portions and forming an abutment flange for said structural foam elements, said cutting edges diverging continuously from said tips to said intermediate portion so that said connecting portions can penetrate and be extracted from said structural foam elements via said slit-like incision without causing crumbling of the latter.
Claim 8
Dependent Claim
189 words
A connector for elements made of structural foam, comprising a first and a second elongated planar blade-shaped connecting portion having tips, each of said connecting portions being connected with one another and having planar cutting edges located at least substantially in a common plane with said planar connecting portions, and each having at least one hole extending transversely of its elongation; a pair of elongated locking members having substantially cross-shaped cross-sections, each adapted to be driven into one of said structural foam elements and through one of said holes, so as to extend transverse of the respective connecting portions and lock the same to the structural foam element; and an intermediate portion located between and connected with said connecting portions and forming an abutment flange for said structural foam elements; and an intermediate portion located between and connected with said connecting portions and forming an abutment flange for said structural foam elements, said cutting edges diverging continuously from said tips to said intermediate portion so that said connecting portions can penetrate and be extracted from said structural foam elements via said slit-like incision without causing crumbling of the latter.
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) | 1979-06-01 | 1979-12-01 | 1980-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-01 | 1983-12-01 | 1984-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-01 | 1987-12-01 | 1988-06-01 | $7700.00 | Window Closed / Lapsed |