Patent US3595184A successfully refreshed from Google Patents.
US3595184A
Expired / Lapsed
US
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Tufting mechanism for producing shag fabrics
Assignee: SPENCER WRIGHT INDUSTRIES Inc A CORP OF TENNESSEE
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Filing: 1970-06-23
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Granted: 1971-07-27
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Expires: 1990-06-23
Abstract
Abstract This disclosure relates to tufting machines for economically producing relatively long nap tufted fabrics hereinafter referred to as shag pile or shag fabrics. The disclosure is more specifically directed to a looper construction for a tufting machine and having means for defining the path of travel of the loops of yarn about said looper such that when the loops are severed one leg of said loops will be substantially longer than the other.
Inventors
- 👤 Charles W Watkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:50
CPC Classifications
D; D05; D05C; D05C15/00; D05C15/04; D05C15/08; D05C15/16; D05C15/22
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
171 words
In a tufting machine for forming tufted fabrics including means for supporting a backing fabric and yarn-carrying needle means disposed on one side of said support means and adapted to penetrate and to carry a loop of yarn through said backing fabric, looper means disposed on the opposite side of said support means from said needle means and including bill means having a first bill portion disposed for seizing loops of yarn presented by said needle means, a second bill portion spaced from said first bill portion, and having a cutting edge, knife means having a cutting edge for cooperating with the cutting edge on said second bill portion to sever loops of yarn on said second bill portion, for forming cut pile, and yarn-loop-engaging means for lengthening the path of loops of yarn about said first and second bill portions such that when said loop is severed between said knife means and said second bill portion, one leg of said cut loop will be substantially longer than the other leg.
Claim 2
Dependent Claim
171 words
In a tufting machine for forming tufted fabrics including means for supporting a backing fabric and yarn-carrying needle means disposed on one side of said support means and adapted to penetrate and to carry a loop of yarn through said backing fabric, looper means disposed on the opposite side of said support means from said needle means and including bill means having a first bill portion disposed for seizing loops of yarn presented by said needle means, a second bill portion spaced from said first bill portion, and having a cutting edge, knife means having a cutting edge for cooperating with the cutting edge on said second bill portion to sever loops of yarn on said second bill portion, for forming cut pile, and yarn-loop-engaging means for lengthening the path of loops of yarn about said first and second bill portions such that when said loop is severed between said knife means and said second bill portion, one leg of said cut loop will be substantially longer than the other leg.
Claim 3
Dependent Claim
28 words
In a tufting machine as recited in claim 1 wherein said second bill portion is spaced from said first bill portion in a direction toward said needle means.
Claim 4
Dependent Claim
52 words
In a tufting machine as recited in claim 1 wherein said yarn-loop-engaging means comprises an additional member disposed between said first and second bill portions and having a portion thereon fOr deflecting and increasing the path of travel of one leg of a yarn loop between said first and second bill portions.
Claim 5
Dependent Claim
79 words
In a tufting machine as recited in claim 3 wherein said member has an end portion for engaging one leg of a loop of yarn, said end portion extending in a direction toward the cutting edge side of said second bill portion and substantially therebeyond such that one leg of a loop of yarn seized by said first bill portion will be intercepted by said member and guided around said member and between said first and second bill portions.
Claim 6
Dependent Claim
65 words
In a tufting machine as recited in claim 4 comprising means interconnecting the outer end portions of said first and second bill portions for guiding the loop of yarn such that said second bill portion splits the loop of yarn and the said one leg of the loop of yarn to be cut will be guided toward the cutting edge of said second bill portion.
Claim 7
Dependent Claim
36 words
In a tufting machine as recited in claim 1 wherein said first bill portion is longer than said second bill for enabling said first bill portion to seize the loop of yarn from said needle means.
Claim 8
Dependent Claim
39 words
In a tufting machine as recited in claim 3 wherein said first bill portion is longer than said second bill portion and said member for enabling said first bill to seize the loop of yarn from said needle means.
Claim 9
Dependent Claim
43 words
In a tufting machine as recited in claim 2 wherein said first bill portion is spaced laterally from said second bill portion for increasing the length of one leg of the loop of yarn between said cutting edge and said first bill portion.
Claim 10
Dependent Claim
71 words
In a tufting machine as recited in claim 8 wherein said first bill portion includes an upstanding end member thereon which engages an end of said second bill portion for guiding the loop of yarn such that said second bill portion splits the loop of yarn and the said one leg of the loop of yarn to be cut will be guided toward the cutting edge of said second bill portion.
Claim 11
Dependent Claim
93 words
In a tufting machine as recited in claim 2 wherein said first bill portion extends from a position laterally spaced from said second bill portion and includes a bent area extending said first bill portion in a lateral direction toward and in substantial lateral alignment with said second bill portion at the outer ends thereof such that when a loop of yarn is seized by said first bill portion the path of travel of one leg thereof will be increased as said loop travels toward the rear portion of said first bill portion.
Claim 12
Dependent Claim
28 words
In a tufting machine as recited in claim 2 wherein said first and second bill portions are supported in laterally spaced disposition in a looper block support means.
Claim 13
Dependent Claim
23 words
In a tufting machine as recited in claim 1 wherein said first and second bill portions are integrally formed on said looper means.
Claim 14
Dependent Claim
31 words
In a tufting machine as recited in claim 2 wherein said first and second bill portions are joined at one end thereof and form a loop-engaging point on said looper means.
Claim 15
Dependent Claim
36 words
In a tufting machine as recited in claim 13 wherein said first bill portion is displaced laterally from said second bill portion in a region between said loop-engaging point and the body of said looper means.
Claim 16
Dependent Claim
17 words
In a tufting machine as recited in claim 14 wherein said looper means is of one-piece construction.
Claim 17
Dependent Claim
41 words
In a tufting machine as recited in claim 2 wherein said first and second bill portions are provided on separate looper body members with said looper body members being supported in a common support groove in a looper block support means.
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) | 1974-07-26 | 1975-01-25 | 1975-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-26 | 1979-01-25 | 1979-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-26 | 1983-01-25 | 1983-07-27 | $7700.00 | Window Closed / Lapsed |