US4233364A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anchoring fibre for use in concrete
Assignee: THIBO DRAAD- EN BOUWSTAALPRODUKTEN BV BOSSCHEWEG 28 5741 SX BEEK EN DONK NETHERLANDS
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Filing: 1979-05-15
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Granted: 1980-11-11
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Expires: 1999-05-15
Abstract
Abstract An anchoring fibre of metal to be used in concrete, having a flattened end and a transversely extending projection on the end. The flattened end may be either rectangular or triangular in planform, and the projections may be either pyramidal or a flange. The body may have protuberances extending therefrom.
Inventors
- 👤 Rudolphus A. F. J. van Thiel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:37
CPC Classifications
E; E04; E04C; E04C5/00; E04C5/01; E04C5/02; E04C5/03; E04C5/012; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2973; Y10T428/2976; Y10T428/2978
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
57 words
An anchoring fibre of metal for use in concrete comprising a longitudinally extending cylindrical body, said fibre having means thereon to resist pull-out thereof from the concrete, said means comprising the end portions of the fibre being flattened, and a projection on a said flattened end portion, said projection extending transversely of the axis of said body.
Claim 2
Dependent Claim
57 words
An anchoring fibre of metal for use in concrete comprising a longitudinally extending cylindrical body, said fibre having means thereon to resist pull-out thereof from the concrete, said means comprising the end portions of the fibre being flattened, and a projection on a said flattened end portion, said projection extending transversely of the axis of said body.
Claim 3
Dependent Claim
20 words
An anchoring fibre in accordance with claim 1, wherein said projection is at the free end of said end portion.
Claim 4
Dependent Claim
18 words
An anchoring fibre in accordance with claim 2, wherein said projection is in the shape of a pyramid.
Claim 5
Dependent Claim
18 words
An anchoring fibre in accordance with claim 1, wherein said projection is in the shape of a flange.
Claim 6
Dependent Claim
29 words
An anchoring fibre in accordance with claim 4, wherein said flange lies in a plane substantially perpendicular to a plane parallel to the flattened end portion of said body.
Claim 7
Dependent Claim
51 words
An anchoring fibre in accordance with claim 1, wherein said fibre has both end portions flattened, each end portion has a projection in the shape of a flange lying in a plane substantially perpendicular to a plane parallel to the adjacent flattened end of said body, said flattened ends being non-parallel.
Claim 8
Dependent Claim
17 words
The anchoring fibre in accordance with claim 1, wherein said flattened end portion is rectangular in planform.
Claim 9
Dependent Claim
37 words
An anchoring fibre in accordance with claim 1, wherein said flattened end portion has a narrow portion adjacent said body and diverges therefrom to a wider terminal portion, said projection being a flange at said terminal portion.
Claim 10
Dependent Claim
19 words
An anchoring fibre in accordance with claim 8, wherein said body has protuberances extending transversely of the axis thereof.
Claim 11
Dependent Claim
26 words
An anchoring fibre in accordance with claim 9, wherein said protuberances extend in a line along at least a portion of the length of said body.
Claim 12
Dependent Claim
18 words
An anchoring fibre in accordance with claim 9, wherein said protuberances extend in plural lines along said body.
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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) | 1983-11-11 | 1984-05-12 | 1984-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-11-11 | 1988-05-12 | 1988-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-11-11 | 1992-05-12 | 1992-11-11 | $7700.00 | Window Closed / Lapsed |