US4620401A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Structural rod for reinforcing concrete material
Assignee: Pultrall Inc
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Filing: 1985-05-03
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Granted: 1986-11-04
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Expires: 2005-05-03
Abstract
Abstract A structural rod for reinforcing a mass of concrete material is formed of a non-metallic non-electrically conductive cylindrical core composed of a plurality of fibers oriented in the longitudinal axis and bound to each other by a thermosetting resin; the rod also includes embossments formed of a plurality of continuous fibers helically wound on the core and impregnated with a thermosetting resin; these embossments define a mechanical anchorage with the concrete material.
Inventors
- 👤 Chantal L'Esperance
- 👤 Germain Belanger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:29
CPC Classifications
E; E04; E04C; E04C5/00; E04C5/07; B; B29; B29C; B29C70/00; B29C70/04; B29C70/06; B29C70/10; B29C70/16; B29C70/20; B29C70/205; B29C53/00; B29C53/56; B29C53/58; B29K; B29K2101/00; B29K2101/10; B29L; B29L2031/00; B29L2031/06; Y; Y10; Y10S; Y10S411/00; Y10S411/904; Y10S411/908; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2936
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
117 words
A structural rod for reinforcing a mass of concrete material comprising: (a) a non-metallic non-electrically conductive cylindrical core composed of a plurality of continuous fibers oriented substantially in the longitudinal axis and bound to one another by a thermosetting resin; and (b) embossment means on said core, being formed of a plurality of continuous fibers helically wound around said core and impregnated with a thermosetting resin; said thermosetting resin achieving a strong bond between the core and the fibers helically wound thereabout so as to prevent relative movement between said core and said embossment means: said embossment means defining a mechanical anchorage bond with concrete material when said rod is embedded in said mass of concrete material.
Claim 2
Dependent Claim
117 words
A structural rod for reinforcing a mass of concrete material comprising: (a) a non-metallic non-electrically conductive cylindrical core composed of a plurality of continuous fibers oriented substantially in the longitudinal axis and bound to one another by a thermosetting resin; and (b) embossment means on said core, being formed of a plurality of continuous fibers helically wound around said core and impregnated with a thermosetting resin; said thermosetting resin achieving a strong bond between the core and the fibers helically wound thereabout so as to prevent relative movement between said core and said embossment means: said embossment means defining a mechanical anchorage bond with concrete material when said rod is embedded in said mass of concrete material.
Claim 3
Dependent Claim
21 words
A structural rod as defined in claim 1 wherein said embossment means are formed of a double helix on said core.
Claim 4
Dependent Claim
33 words
A structural rod as defined in claim 2, wherein the angle of said helix with respect to the longitudinal axis of said cylindrical core is a function of the diameter of said core.
Claim 5
Dependent Claim
22 words
A structural rod as defined in claim 1, further comprising a layer of thermosetting resin enveloping said core and said embossment means.
Claim 6
Dependent Claim
14 words
A structural rod as defined in claim 1, wherein said fibers are fiberglass filaments.
Claim 7
Dependent Claim
14 words
A structural rod as defined in claim 1, wherein said fibers are graphite filaments.
Claim 8
Dependent Claim
14 words
A structural rod as defined in claim 1, wherein said fibers are carbon filaments.
Claim 9
Dependent Claim
14 words
A structural rod as defined in claim 1, wherein said fibers are aramide filaments.
Claim 10
Dependent Claim
16 words
A structural rod as defined in claim 1, wherein said fibers are made of polypropylene material.
Claim 11
Dependent Claim
16 words
A structural rod as defined in claim 1, wherein said fibers are made of polyester material.
Claim 12
Dependent Claim
106 words
A structural rod for reinforcing a mass of concrete material comprising: (a) a non-metallic non-electrically conductive cylindrical core composed of a plurality of continuous fibers oriented substantially in the longitudinal axis and bound to one another by a thermosetting resin; and (b) embossment means on said core, being formed of a plurality of continuous fibers helically wound around said core; and (c) a layer of thermosetting resin enveloping said core and said embossment means with aggregates randomly set in said layer of thermosetting resin; said embossment means defining a mechanical anchorage bond with concrete material when said rod is embedded in said mass of concrete material.
Claim 13
Dependent Claim
106 words
A structural rod for reinforcing a mass of concrete material comprising: (a) a non-metallic non-electrically conductive cylindrical core composed of a plurality of continuous fibers oriented substantially in the longitudinal axis and bound to one another by a thermosetting resin; and (b) embossment means on said core, being formed of a plurality of continuous fibers helically wound around said core; and (c) a layer of thermosetting resin enveloping said core and said embossment means with aggregates randomly set in said layer of thermosetting resin; said embossment means defining a mechanical anchorage bond with concrete material when said rod is embedded in said mass of concrete material.
Claim 14
Dependent Claim
87 words
A reinforced structural member comprising a mass of concrete material and a series of structural rods embedded therein, each said rod comprising: (a) a non-metallic non-electrically conductive cylindrical core composed of a plurality of continuous fibers oriented in the longitudinal axis and bound to each other by a thermosetting resin; and (b) embossments on said core, being formed of a plurality of continuous fibers helically wound around said core and impregnated with a thermosetting resin to thereby form a mechanical bond with said mass of concrete material.
Claim 15
Dependent Claim
87 words
A reinforced structural member comprising a mass of concrete material and a series of structural rods embedded therein, each said rod comprising: (a) a non-metallic non-electrically conductive cylindrical core composed of a plurality of continuous fibers oriented in the longitudinal axis and bound to each other by a thermosetting resin; and (b) embossments on said core, being formed of a plurality of continuous fibers helically wound around said core and impregnated with a thermosetting resin to thereby form a mechanical bond with said mass of concrete material.
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) | 1989-11-03 | 1990-05-05 | 1990-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-11-03 | 1994-05-05 | 1994-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-11-03 | 1998-05-05 | 1998-11-04 | $7700.00 | Window Closed / Lapsed |