US3886767A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of modifying a pile fabric machine
Assignee: Malden Mills Industries Inc
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Filing: 1973-09-20
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Granted: 1975-06-03
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Expires: 1993-09-20
Abstract
Abstract There is disclosed a method of modifying a pile-fabric knitting machine so that it is capable of producing fabrics at a much faster rate. In a conventional prior art machine, yarn-feed and fiber-feed stations alternate with each other around the needle cylinder; each needle picks up fiber and then forms a stitch. In accordance with the invention, yarn-feed stations are added so that two yarn-feed stations separate successive fiber-feed stations. This results in the knitting of alternate courses of plain stitches and fiber stitches. Because there are twice as many yarn-feed stations, fabric can be produced at twice the rate. By doubling the fiber feed rate so that each fiber stitch contains twice the amount of fiber in a stitch of a fabric made on a comparable prior art machine, there is no loss in fabric quality.
Inventors
- 👤 Philip A Dargie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:09
CPC Classifications
D; D04; D04B; D04B9/00; D04B9/14; D04B9/12
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
161 words
The method of modifying a pile-fabric knitting machine which has alternating fiber-feed and yarn-feed stations in the direction of the needle travel for increasing the rate of fabric production comprising the step of adding a yarn-feed station following at least one yarn-feed station on the machine without providing another fiber-feed station therebetween such that the modified machine contains at least two yarn-feed stations for controlling the formation of respective separate courses arranged one after the other in the direction of the needle travel without any fiber-feed station being positioned therebetween, whereby on the modified machine two courses, only one of which has pile fabric held by its constituent loops, are formed in place of the single course formed on the machine before it is modified, which two courses may be controlled to have the same fiber weight per unit area as said single course be increasing the rate at which fiber is fed during the formation of said only one course.
Claim 2
Independent Claim
161 words
The method of modifying a pile-fabric knitting machine which has alternating fiber-feed and yarn-feed stations in the direction of the needle travel for increasing the rate of fabric production comprising the step of adding a yarn-feed station following at least one yarn-feed station on the machine without providing another fiber-feed station therebetween such that the modified machine contains at least two yarn-feed stations for controlling the formation of respective separate courses arranged one after the other in the direction of the needle travel without any fiber-feed station being positioned therebetween, whereby on the modified machine two courses, only one of which has pile fabric held by its constituent loops, are formed in place of the single course formed on the machine before it is modified, which two courses may be controlled to have the same fiber weight per unit area as said single course be increasing the rate at which fiber is fed during the formation of said only one course.
Claim 3
Independent Claim
161 words
The method of modifying a pile-fabric knitting machine which has alternating fiber-feed and yarn-feed stations in the direction of the needle travel for increasing the rate of fabric production comprising the step of adding a yarn-feed station following at least one yarn-feed station on the machine without providing another fiber-feed station therebetween such that the modified machine contains at least two yarn-feed stations for controlling the formation of respective separate courses arranged one after the other in the direction of the needle travel without any fiber-feed station being positioned therebetween, whereby on the modified machine two courses, only one of which has pile fabric held by its constituent loops, are formed in place of the single course formed on the machine before it is modified, which two courses may be controlled to have the same fiber weight per unit area as said single course be increasing the rate at which fiber is fed during the formation of said only one course.
Claim 4
Independent Claim
161 words
The method of modifying a pile-fabric knitting machine which has alternating fiber-feed and yarn-feed stations in the direction of the needle travel for increasing the rate of fabric production comprising the step of adding a yarn-feed station following at least one yarn-feed station on the machine without providing another fiber-feed station therebetween such that the modified machine contains at least two yarn-feed stations for controlling the formation of respective separate courses arranged one after the other in the direction of the needle travel without any fiber-feed station being positioned therebetween, whereby on the modified machine two courses, only one of which has pile fabric held by its constituent loops, are formed in place of the single course formed on the machine before it is modified, which two courses may be controlled to have the same fiber weight per unit area as said single course be increasing the rate at which fiber is fed during the formation of said only one course.
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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) | 1978-06-02 | 1978-12-02 | 1979-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-02 | 1982-12-02 | 1983-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-02 | 1986-12-02 | 1987-06-03 | $7700.00 | Window Closed / Lapsed |