US4346135A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fibrous reinforcing means for cementitiously and bituminously bound composite structures and coatings
Assignee: INTER-FORTA AG
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Filing: 1980-04-14
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Granted: 1982-08-24
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Expires: 2000-04-14
Abstract
Abstract A fibrous reinforcing means for cementitiously and bituminously bound composite structures and coatings comprises at least two various groups of fibrous articles. At least one of the groups consists of fibrous articles in the form of a closed filamentary net. The fibres thereof are resilient. They are added to the material to be mixed in a condensed shape such to expand during the mixing step of the preparation of the composite structure.
Inventors
- 👤 Adolf Arnheiter
- 👤 Rudolf Enzler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:07
CPC Classifications
E; E04; E04C; E04C5/00; E04C5/07; E04C5/073; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24942; Y10T428/31504; Y10T428/31815; Y10T442/00; Y10T442/10; Y10T442/184; Y10T442/188
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
158 words
A fibrous reinforcing means for structures and coatings of the type selectively bound together by cement and by bitumen comprising at least two different fiber forms, one of said fiber forms being a closed fiber net including spring elastic fiber means, said closed fiber net having a condensed form prior to being added to a material with which it is mixed and said spring elastic fiber means being means urging said closed fiber net to an open form, said closed fiber net including a first group of fibers and a second group of fibers, said second group of fibers defining said spring elastic fiber means, the fibers of said first group having a length different from the length of the fibers of said second group, and said fiber forms each comprising fibers of various lengths for distribution in the mixing material in a percentage equivalent in the intended distribution percentage of mixing material aggregates of different grain sizes.
Claim 2
Dependent Claim
158 words
A fibrous reinforcing means for structures and coatings of the type selectively bound together by cement and by bitumen comprising at least two different fiber forms, one of said fiber forms being a closed fiber net including spring elastic fiber means, said closed fiber net having a condensed form prior to being added to a material with which it is mixed and said spring elastic fiber means being means urging said closed fiber net to an open form, said closed fiber net including a first group of fibers and a second group of fibers, said second group of fibers defining said spring elastic fiber means, the fibers of said first group having a length different from the length of the fibers of said second group, and said fiber forms each comprising fibers of various lengths for distribution in the mixing material in a percentage equivalent in the intended distribution percentage of mixing material aggregates of different grain sizes.
Claim 3
Dependent Claim
19 words
The fibrous reinforcing means of claim 1 wherein the fibers of said fiber forms exhibit various moduli of elasticity.
Claim 4
Dependent Claim
26 words
The fibrous reinforcing means of claim 1 wherein said closed fiber net has polypropylene fibers and said second fiber form is a group of steel fibers.
Claim 5
Dependent Claim
31 words
The fibrous reinforcing means of claim 3 wherein said closed fiber net further includes glass fibers and/or steel fibers and/or plastic fibers and/or carbon fibers and/or asbestos fibers and/or natural fibers.
Claim 6
Dependent Claim
29 words
The fibrous reinforcing means of claim 1 wherein in the state prior to the adding to the materials to be mixed all of said fiber forms are joined together.
Claim 7
Dependent Claim
18 words
The fibrous reinforcing means of claim 5 wherein all of said fiber forms are twisted with each other.
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) | 1985-08-23 | 1986-02-22 | 1986-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-08-23 | 1990-02-22 | 1990-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-08-23 | 1994-02-22 | 1994-08-24 | $7700.00 | Window Closed / Lapsed |