Patent US3751777A successfully refreshed from Google Patents.
US3751777A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for making tufted pile carpet
Assignee: Individual
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Filing: 1971-07-09
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Granted: 1973-08-14
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Expires: 1991-07-09
Abstract
Abstract The present invention relates to a carpet tufted with a fibrillatable yarn and a method of fibrillating the yarn in the carpet to thereby deluster and consolidate the pile. More particularly, the present invention relates to the discovery that a high velocity fluid stream directed at the pile of a carpet tufted of a fibrillatable yarn delusters, fibrillates, entangles and consolidates the pile thereof.
Inventors
- 👤 H Turmel
- 👤 D Lackie
- 👤 S Chopra
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:50
CPC Classifications
D; D05; D05C; D05C17/00; D05C17/02; D05C17/026
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
80 words
A process for making a tufted pile carpet by tufting a carpet with pile loops of a fibrillatable face yarn and thereafter fibrillating said loops with a fluid stream, wherein said fluid stream impinges on said carpet''s face at an angle of between about 70* to about 90* and said fluid stream has a velocity measured at the nozzle of between about 500 to about 3,000 feet per second, whereby some of said fibrils intertwine and entangle with each other.
Claim 2
Dependent Claim
80 words
A process for making a tufted pile carpet by tufting a carpet with pile loops of a fibrillatable face yarn and thereafter fibrillating said loops with a fluid stream, wherein said fluid stream impinges on said carpet''s face at an angle of between about 70* to about 90* and said fluid stream has a velocity measured at the nozzle of between about 500 to about 3,000 feet per second, whereby some of said fibrils intertwine and entangle with each other.
Claim 3
Dependent Claim
21 words
A process as in claim 1 wherein the fibrillatable face yarn is a bicomponent, each component having a different crimp potential.
Claim 4
Dependent Claim
22 words
A process as in claim 1 wherein the fibrillatable face yarn is prepared by extruding a thermoplastic resin with a foaming agent.
Claim 5
Dependent Claim
16 words
A process as in claim 1 wherein the fibrillatable face yarn is a highly oriented tape.
Claim 6
Dependent Claim
20 words
A process as defined in claim 1 further comprising the step of coating said carpet pile with a resin emulsion.
Claim 7
Dependent Claim
45 words
A process as defined in claim 5 wherein said resin emulsion is selected from the group consisting of polypropylene, polyethylene, polyvinyl chloride or acrylic resin and is applied in concentrations of between about 1 to about 10 percent, based on the weight of the pile.
Claim 8
Dependent Claim
39 words
A process as defined in claim 5 further comprising the step of introducing the carpet to a drying oven maintained at between about 100* to about 150*C. for between about 15 to about 40 minutes to cure the emulsion.
Claim 9
Dependent Claim
25 words
A process as defined in claim 1 comprising the further step of needle punching the carpet pile subsequent to the fibrillation of said face yarn.
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) | 1976-08-13 | 1977-02-12 | 1977-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-13 | 1981-02-12 | 1981-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-13 | 1985-02-12 | 1985-08-14 | $7700.00 | Window Closed / Lapsed |