US4093512A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Papermakers belts having ultra-high modulus load bearing yarns
Assignee: Huyck Licensco Inc
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Filing: 1975-04-23
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Granted: 1978-06-06
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Expires: 1995-04-23
Abstract
Abstract Generally, this invention relates to papermakers' belts for use in papermaking machines which comprise ultra high modulus load bearing yarn comprised of poly(para-phenylene terephthalamide).
Inventors
- 👤 Thomas B. Fleischer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:04
CPC Classifications
D; D02; D02G; D02G3/00; D02G3/22; D02G3/36; D02G3/02; D02G3/16; D02G3/20; D02G3/44; D02G3/447; D21; D21F; D21F1/00; D21F1/0027; D10; D10B; D10B2331/00; D10B2331/02; D10B2331/021; Y; Y10; Y10S; Y10S162/00; Y10S162/90; Y10S162/903; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2936; Y10T442/00; Y10T442/30; Y10T442/3049; Y10T442/3065; Y10T442/313; Y10T442/3138; Y10T442/3179; Y10T442/322; Y10T442/3228; Y10T442/326; Y10T442/3276
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
21 words
A papermakers' belt for use in a papermaking machine and comprised of ultra-high modulus load-bearing yarns comprised of poly (para-phenylene terephthalamide).
Claim 2
Dependent Claim
21 words
A papermakers' belt for use in a papermaking machine and comprised of ultra-high modulus load-bearing yarns comprised of poly (para-phenylene terephthalamide).
Claim 3
Dependent Claim
16 words
A papermakers belt as recited in claim 1 wherein said load bearing yarns are resin coated.
Claim 4
Dependent Claim
15 words
A papermakers belt as recited in claim 1 wherein said load bearing yarns are wrapped.
Claim 5
Dependent Claim
15 words
A papermakers belt as recited in claim 3 wherein said wrapped yarns are resin coated.
Claim 6
Dependent Claim
15 words
A papermakers belt as recited in claim 3 wherein said yarns are wrapped with asbestos.
Claim 7
Dependent Claim
15 words
A papermakers belt as recited in claim 3 wherein said yarns are wrapped with nylon.
Claim 8
Dependent Claim
15 words
A papermakers belt as recited in claim 3 wherein said yarns are wrapped with acrylic.
Claim 9
Dependent Claim
35 words
A papermakers' belt for use in a papermaking machine and comprising ultra-high modulus load-bearing yarns comprised of poly (para-phenylene terephthalamide) and non-load bearing yarns having a modulus of elasticity less than 150 grams per denier.
Claim 10
Dependent Claim
35 words
A papermakers' belt for use in a papermaking machine and comprising ultra-high modulus load-bearing yarns comprised of poly (para-phenylene terephthalamide) and non-load bearing yarns having a modulus of elasticity less than 150 grams per denier.
Claim 11
Dependent Claim
16 words
A papermakers belt as recited in claim 8 wherein said load bearing yarns are resin coated.
Claim 12
Dependent Claim
16 words
A papermakers' belt as recited in claim 8 wherein said non-load bearing yarns are multifilament polyester.
Claim 13
Dependent Claim
16 words
A papermakers' belt as recited in claim 8 wherein said non-load bearing yarns are monofilament polyester.
Claim 14
Dependent Claim
47 words
A papermakers' belt for use in a papermaking machine and comprising ultra-high modulus load bearing yarns which are coated with nylon resin and comprise multifilament poly(para-phenylene terephthalamide) fibers, and the non-load bearing yarns comprise multifilament polyester having a modulus of elasticity less than 150 grams per denier.
Claim 15
Dependent Claim
47 words
A papermakers' belt for use in a papermaking machine and comprising ultra-high modulus load bearing yarns which are coated with nylon resin and comprise multifilament poly(para-phenylene terephthalamide) fibers, and the non-load bearing yarns comprise multifilament polyester having a modulus of elasticity less than 150 grams per denier.
Claim 16
Dependent Claim
15 words
A papermakers belt as recited in claim 12 wherein said load bearing yarns are wrapped.
Claim 17
Dependent Claim
47 words
A papermakers' belt for use in a papermaking machine and comprising ultra-high modulus load bearing yarns which are coated with nylon resin and comprise multifilament poly(para-phenylene terephthalamide) fibers, and the non-load bearing yarns comprise multifilament nylon having a modulus of elasticity less than 150 grams per denier.
Claim 18
Dependent Claim
47 words
A papermakers' belt for use in a papermaking machine and comprising ultra-high modulus load bearing yarns which are coated with nylon resin and comprise multifilament poly(para-phenylene terephthalamide) fibers, and the non-load bearing yarns comprise multifilament nylon having a modulus of elasticity less than 150 grams per denier.
Claim 19
Dependent Claim
47 words
A papermakers' belt for use in a papermaking machine and comprising ultra-high modulus load bearing yarns which are coated with nylon resin and comprise multifilament poly(para-phenylene terephthalamide) fibers, and the non-load bearing yarns comprise monofilament nylon having a modulus of elasticity less than 150 grams per denier.
Claim 20
Dependent Claim
47 words
A papermakers' belt for use in a papermaking machine and comprising ultra-high modulus load bearing yarns which are coated with nylon resin and comprise multifilament poly(para-phenylene terephthalamide) fibers, and the non-load bearing yarns comprise monofilament nylon having a modulus of elasticity less than 150 grams per denier.
Claim 21
Dependent Claim
32 words
A papermakers' belt woven in a four-harness satin weave for use in a papermaking machine and comprising ultra-high modulus load-bearing yarns comprised of poly (para-phenylene terephthalamide), and wherein said belt is resin-coated.
Claim 22
Dependent Claim
32 words
A papermakers' belt woven in a four-harness satin weave for use in a papermaking machine and comprising ultra-high modulus load-bearing yarns comprised of poly (para-phenylene terephthalamide), and wherein said belt is resin-coated.
References Cited (Backward Citations)
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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) | 1981-06-05 | 1981-12-05 | 1982-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-06-05 | 1985-12-05 | 1986-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-06-05 | 1989-12-05 | 1990-06-06 | $7700.00 | Window Closed / Lapsed |