US3900624A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Static charge resistant synthetic yarns
Assignee: Individual
•
Filing: 1973-07-10
•
Granted: 1975-08-19
•
Expires: 1993-07-10
Abstract
Abstract A static-charge resistant yarn constituted by a ribbon having rough or abraded faces which are vacuum-plated with tin or other non-oxidizing metal that impregnates the ribbon to create a nonreflective, electrically conductive, static discharge path. The metal-plated ribbon is twisted, texturized or wrapped about a filamentary core to form a metallized textile yarn which is intermixed with conventional yarns and woven, tufted or otherwise processed to create textile fabrics for clothing and coverings or for carpets and rugs.
Inventors
- 👤 Walter G Schare
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:16
CPC Classifications
D; D02; D02G; D02G3/00; D02G3/02; D02G3/06; A; A47; A47G; A47G27/00; D02G3/44; D02G3/441; D04; D04H; D04H1/00; D06; D06M; D06M11/00; D06M11/83; H; H05; H05F; H05F3/00; H05F3/02; H05F3/025; D10; D10B; D10B2503/00; D10B2503/04; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S57/00; Y10S57/901; Y10T; Y10T428/00; Y10T428/23907; Y10T428/23993; Y10T428/29; Y10T428/2913; Y10T428/2922; Y10T428/2924; Y10T428/2925; Y10T428/2933; Y10T428/2936
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
65 words
A METALLIZED YARN CONSTITUTED BY A FLAT RIBBON FORMED OF NYLON FILM WHOSE FACES ARE ROUGH LUSTERLESS SURFACES, THE FACES OF SAID RIBBON BEING COATED WITH AN EXTREMELY THIN LAYER OF A METAL SELECTED FROM THE CLASS CONSISTNG OF TIN AND ALUMINUM WHICH COVERS THE ROUGH SURFACES TO CREATE A NON-REFLECTIVE THREE-DIMENSIONAL LATTICE OF HIGH ELECTRICAL CONDUCTIVITY FORMING AN ELECTRICALLY-CONDUCTIVE PATH OT DISCHARGE ELECTROSTATIC CHARGES.
Claim 2
Dependent Claim
65 words
A METALLIZED YARN CONSTITUTED BY A FLAT RIBBON FORMED OF NYLON FILM WHOSE FACES ARE ROUGH LUSTERLESS SURFACES, THE FACES OF SAID RIBBON BEING COATED WITH AN EXTREMELY THIN LAYER OF A METAL SELECTED FROM THE CLASS CONSISTNG OF TIN AND ALUMINUM WHICH COVERS THE ROUGH SURFACES TO CREATE A NON-REFLECTIVE THREE-DIMENSIONAL LATTICE OF HIGH ELECTRICAL CONDUCTIVITY FORMING AN ELECTRICALLY-CONDUCTIVE PATH OT DISCHARGE ELECTROSTATIC CHARGES.
Claim 3
Dependent Claim
24 words
A yarn as set forth in claim 1, wherein said ribbon is formed of nylon film whose faces are abraded to impart roughness thereto.
Claim 4
Dependent Claim
17 words
A yarn as set forth in claim 1, wherein said ribbon is wound about a filamentary core.
Claim 5
Dependent Claim
13 words
A yarn as set forth in claim 1, wherein said ribbon is twisted.
Claim 6
Dependent Claim
14 words
A yarn as set forth in claim 4, wherein said twisted ribbon is texturized.
Claim 7
Dependent Claim
28 words
A carpet having a pile constituted by non-metallized nylon fibers intermixed with metallized yarns of the type set forth in claim 1, to render said carpet electrically shock-free.
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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) | 1978-08-18 | 1979-02-17 | 1979-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-18 | 1983-02-17 | 1983-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-18 | 1987-02-17 | 1987-08-19 | $7700.00 | Window Closed / Lapsed |