Patent US3987613A successfully refreshed from Google Patents.
US3987613A
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Process for preparing textiles without static charge accumulation and resulting product
Assignee: BI/MS HOLDINGS I Inc A DE CORP
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Filing: 1965-07-29
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Granted: 1976-10-26
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Expires: 1985-07-29
Abstract
Abstract A process is described for avoiding static charge buildup in handling textile fibers which normally develop such buildup. The process involves blending a minor amount of conductive metallic fiber, e.g. copper fiber, with the textile fiber prior to yarn formation. Spun yarns and fabrics made from these blends are also disclosed.
Inventors
- 👤 Herbert J. Woods
- 👤 Jack Leach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:32
CPC Classifications
D; D02; D02G; D02G3/00; D02G3/44; D02G3/441; D02G3/02; D02G3/12; D10; D10B; D10B2331/00; Y; Y10; Y10S; Y10S57/00; Y10S57/901; Y10T; Y10T428/00; Y10T428/29; Y10T428/2904
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
54 words
An antistatic textile comprising a substantially uniformly distributed blend of electrically conductive yarn-forming metallic fiber or fibers having a diameter of less than approximately 0.001 inches and a length of under approximately 2 inches, and electrically non-conductive fibers, said conductive to nonconductive fibers being present in a weight ratio of about 1% or below.
Claim 2
Dependent Claim
54 words
An antistatic textile comprising a substantially uniformly distributed blend of electrically conductive yarn-forming metallic fiber or fibers having a diameter of less than approximately 0.001 inches and a length of under approximately 2 inches, and electrically non-conductive fibers, said conductive to nonconductive fibers being present in a weight ratio of about 1% or below.
Claim 3
Dependent Claim
47 words
An antistatic textile comprising a blend of electrically conductive yar-forming metallic fiber or fibers having a diameter of less than approximately 0.001 inch, and electrically non-conductive fiber or fibers, said conductive to non-conductive fiber or fibers being present in a weight ratio of about 1% or below.
Claim 4
Dependent Claim
47 words
An antistatic textile comprising a blend of electrically conductive yar-forming metallic fiber or fibers having a diameter of less than approximately 0.001 inch, and electrically non-conductive fiber or fibers, said conductive to non-conductive fiber or fibers being present in a weight ratio of about 1% or below.
Claim 5
Dependent Claim
47 words
An antistatic textile comprising a blend of electrically conductive yarn-forming metallic fiber or fibers having a diameter of less than approximately 0.001 inch, and electrically non-conductive fiber or fibers, said conductive to non-conductive fiber or fibers being present in a weight ratio of about 1% to about6%.
Claim 6
Dependent Claim
47 words
An antistatic textile comprising a blend of electrically conductive yarn-forming metallic fiber or fibers having a diameter of less than approximately 0.001 inch, and electrically non-conductive fiber or fibers, said conductive to non-conductive fiber or fibers being present in a weight ratio of about 1% to about6%.
Claim 7
Dependent Claim
59 words
In a process for making an antistatic yarn from textile fibers which normally tend to accumulate an undesirable static charge build-up, the improvement comprising blending from 0.25% to about 15% by weight of a conductive metallic fiber or fibers with said textile fibers, wherein said conductive metallic fiber or fibers have a diameter of less than approximately 0.001 inches.
Claim 8
Dependent Claim
59 words
In a process for making an antistatic yarn from textile fibers which normally tend to accumulate an undesirable static charge build-up, the improvement comprising blending from 0.25% to about 15% by weight of a conductive metallic fiber or fibers with said textile fibers, wherein said conductive metallic fiber or fibers have a diameter of less than approximately 0.001 inches.
Claim 9
Dependent Claim
77 words
A spun antistatic yarn comprising an intimate blend of from about 0.25% to about 15% by weight of a conductive metallic fiber or fibers and about 99.75% to about 85% by weight of textile fiber or fibers which normally tend to accumulate an undesirable static charge, wherein said metallic fiber or fibers have a diameter of less than approximately 0.001 inches, the amount of metallic fiber or fibers being sufficient to avoid said accumulation of static charge.
Claim 10
Dependent Claim
77 words
A spun antistatic yarn comprising an intimate blend of from about 0.25% to about 15% by weight of a conductive metallic fiber or fibers and about 99.75% to about 85% by weight of textile fiber or fibers which normally tend to accumulate an undesirable static charge, wherein said metallic fiber or fibers have a diameter of less than approximately 0.001 inches, the amount of metallic fiber or fibers being sufficient to avoid said accumulation of static charge.
Claim 11
Dependent Claim
81 words
A fabric comprising a yarn made up of a combination of textile fibers which normally tend to accumulate an undesirable static charge build-up and a minor amount of conductive, metallic fiber present in an amount sufficient to prevent said static charge build-up wherein said metallic fiber having a diameter of less than approximately 0.001 inches and wherein said minor amount of said metallic fiber is about 1% or less by weight of the metallic fiber to the total textile fiber weight.
Claim 12
Dependent Claim
81 words
A fabric comprising a yarn made up of a combination of textile fibers which normally tend to accumulate an undesirable static charge build-up and a minor amount of conductive, metallic fiber present in an amount sufficient to prevent said static charge build-up wherein said metallic fiber having a diameter of less than approximately 0.001 inches and wherein said minor amount of said metallic fiber is about 1% or less by weight of the metallic fiber to the total textile fiber weight.
Claim 13
Dependent Claim
82 words
A fabric comprising yarn made up of a combination of textile fibers which normally tend to accumulate an undesirable static charge build-up and a minor amount of conductive, metallic fiber present in an amount sufficient to prevent said static charge build-up wherein said metallic fiber having a diameter of less than approximately 0.001 inches and wherein said minor amount of said metallic fiber is about from 1% to about 6% by weight of the metallic fiber to the total textile fiber weight.
Claim 14
Dependent Claim
82 words
A fabric comprising yarn made up of a combination of textile fibers which normally tend to accumulate an undesirable static charge build-up and a minor amount of conductive, metallic fiber present in an amount sufficient to prevent said static charge build-up wherein said metallic fiber having a diameter of less than approximately 0.001 inches and wherein said minor amount of said metallic fiber is about from 1% to about 6% by weight of the metallic fiber to the total textile fiber weight.
Claim 15
Dependent Claim
13 words
The fabric of claim 7 wherein said metallic fiber is in staple form.
Claim 16
Dependent Claim
14 words
The fabric of claim 7 wherein said metallic fiber is in continuous filament form.
Claim 17
Dependent Claim
22 words
The process of claim 4 including the steps of drafting, spinning and fabric formation after blending the metallic fiber with said fibers.
Claim 18
Dependent Claim
20 words
The process of claim 4 wherein said metallic fiber is selected from the group consisting of copper and steel fibers.
Claim 19
Dependent Claim
15 words
The process of claim 11 wherein said metallic fiber is in the form of staple.
Claim 20
Dependent Claim
14 words
The process of claim 11 wherein said metallic fiber is in continuous filament form.
Claim 21
Dependent Claim
13 words
The fabric of claim 6 wherein said metallic fiber is in staple form.
Claim 22
Dependent Claim
14 words
The fabric of claim 6 wherein said metallic fiber is in continuous filament form.
Claim 23
Dependent Claim
13 words
The yarn of claim 5 wherein said textile fibers are natural textile fibers.
Claim 24
Dependent Claim
13 words
The yarn of claim 5 wherein said textile fibers are synthetic textile fibers.
Claim 25
Dependent Claim
16 words
The yarn of claim 5 wherein said textile fibers are blends of natural and synthetic fibers.
Claim 26
Dependent Claim
14 words
A yarn according to claim 5 wherein said metallic fiber is in staple form.
Claim 27
Dependent Claim
15 words
A yarn according to claim 5 wherein said metallic fiber is in continuous filament form.
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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) | 1979-10-26 | 1980-04-26 | 1980-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-10-26 | 1984-04-26 | 1984-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-10-26 | 1988-04-26 | 1988-10-26 | $7700.00 | Window Closed / Lapsed |