US4569883A
Expired / Lapsed
US
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Paper machine clothing
Assignee: Albany International Corp
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Filing: 1985-01-22
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Granted: 1986-02-11
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Expires: 2005-01-22
Abstract
Abstract The disclosure is of paper machine clothing which includes a means of chemically treating the fabric of the clothing.
Inventors
- 👤 Armen Renjilian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 02:54
CPC Classifications
D; D21; D21F; D21F7/00; D21F7/08; D21F7/083; D21F1/00; D21F1/0027; D21F1/30; Y; Y10; Y10S; Y10S162/00; Y10S162/902; Y10S428/00; Y10S428/905; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/249954; Y10T428/29; Y10T428/2913; Y10T428/2973; Y10T428/2975; Y10T442/00; Y10T442/30; Y10T442/3065; Y10T442/3089; Y10T442/3106; Y10T442/3707; Y10T442/3724
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
46 words
A fabric for use as a paper machine clothing fabric which comprises; plurality of machine-direction yarns interwoven with a plurality of cross- machine direction yarns; and means for the slow release of a chemical compound for chemically treating said clothing fabric included in the woven fabric.
Claim 2
Dependent Claim
46 words
A fabric for use as a paper machine clothing fabric which comprises; plurality of machine-direction yarns interwoven with a plurality of cross- machine direction yarns; and means for the slow release of a chemical compound for chemically treating said clothing fabric included in the woven fabric.
Claim 3
Dependent Claim
22 words
The fabric of claim 1 wherein said means comprises: at least one of said machine-direction and cross-machine direction yarns containing hollow fibers.
Claim 4
Dependent Claim
20 words
The fabric of claim 1 wherein said means comprises: a granule of a polymeric resin foam impregnated with the compound.
Claim 5
Dependent Claim
32 words
In a papermachine dryer fabric, which comprises woven textile yarns, the improvement, which comprises; hollow fibers structurally integrated in said fabric and containing a chemical compound for slow release into the fabric.
Claim 6
Dependent Claim
32 words
In a papermachine dryer fabric, which comprises woven textile yarns, the improvement, which comprises; hollow fibers structurally integrated in said fabric and containing a chemical compound for slow release into the fabric.
Claim 7
Dependent Claim
30 words
A wet press felt, which comprises: a seamed endless fabric having a woven base containing synthetic polymere resin hollow fibers which contain a chemical for slow release into the fabric.
Claim 8
Dependent Claim
30 words
A wet press felt, which comprises: a seamed endless fabric having a woven base containing synthetic polymere resin hollow fibers which contain a chemical for slow release into the fabric.
Claim 9
Dependent Claim
33 words
A forming wire, which comprises: a seamed endless fabric of interwoven machine and cross-machine direction yarns, of synthetic polymeric resin monofilaments containing for slow release, a chemical for the treatment of the wire.
Claim 10
Dependent Claim
33 words
A forming wire, which comprises: a seamed endless fabric of interwoven machine and cross-machine direction yarns, of synthetic polymeric resin monofilaments containing for slow release, a chemical for the treatment of the wire.
Claim 11
Dependent Claim
66 words
A papermakers wet-press felt, which comprises; a textile base layer; an intermediate layer of granular particles of a synthetic, flexible polymeric resin foam; and an upper layer for receiving a wet paper sheet affixed to the base layer and the intermediate layer by needling, said upper layer comprising a plurality of non-woven textile staple fibers; said foam containing a chemical for slow release into the felt.
Claim 12
Dependent Claim
66 words
A papermakers wet-press felt, which comprises; a textile base layer; an intermediate layer of granular particles of a synthetic, flexible polymeric resin foam; and an upper layer for receiving a wet paper sheet affixed to the base layer and the intermediate layer by needling, said upper layer comprising a plurality of non-woven textile staple fibers; said foam containing a chemical for slow release into the felt.
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) | 1989-02-10 | 1989-08-12 | 1990-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-02-10 | 1993-08-12 | 1994-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-02-10 | 1997-08-12 | 1998-02-11 | $7700.00 | Window Closed / Lapsed |