US3618544A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Convertible tufting machines
Assignee: SPENCER WRIGHT INDUSTRIES Inc A CORP OF TENNESSEE
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Filing: 1970-11-03
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Granted: 1971-11-09
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Expires: 1990-11-03
Abstract
Abstract A convertible tufting machine for producing long-nap or shagtype pile fabrics of varying length or for producing pile heights of standard or conventional pile heights including an adjustable, transfer-type looper mechanism for producing the shag pile tufted fabrics and which can be adjusted for operation as a standard tufting machine.
Inventors
- 👤 Charles W Watkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:48
CPC Classifications
D; D05; D05C; D05C15/00; D05C15/04; D05C15/08; D05C15/16; D05C15/22
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
188 words
In a tufting machine including a support means, means for advancing a base fabric across said support means and needle means for carrying loops of yarn through said base fabric to produce tufts therein, a first oscillating looper means, means for adjusting said first looper means for varying the length of the oscillations thereof, said first looper means being operable for Intercepting a loop of yarn from said needle and extending the length of said loop of yarn from said needle, second looper means, said second looper means being operable for intercepting a loop of yarn from said first looper means substantially at one end of the stroke of said first looper means, said second looper means being adjustable substantially toward and away from said support means into cooperating relationship with said first looper means and said needle, whereby said first and second looper means can be adjusted for forming loops having a pile height varying from a minimum height substantially equal to the depth of the needle penetration through the base fabric to a maximum height equal to the maximum oscillating stroke of said first looper means.
Claim 2
Dependent Claim
188 words
In a tufting machine including a support means, means for advancing a base fabric across said support means and needle means for carrying loops of yarn through said base fabric to produce tufts therein, a first oscillating looper means, means for adjusting said first looper means for varying the length of the oscillations thereof, said first looper means being operable for Intercepting a loop of yarn from said needle and extending the length of said loop of yarn from said needle, second looper means, said second looper means being operable for intercepting a loop of yarn from said first looper means substantially at one end of the stroke of said first looper means, said second looper means being adjustable substantially toward and away from said support means into cooperating relationship with said first looper means and said needle, whereby said first and second looper means can be adjusted for forming loops having a pile height varying from a minimum height substantially equal to the depth of the needle penetration through the base fabric to a maximum height equal to the maximum oscillating stroke of said first looper means.
Claim 3
Dependent Claim
30 words
In a tufting machine as recited in claim 1 further comprising cutting means cooperating with said second looper means for severing loops of yarn held by said second looper means.
Claim 4
Dependent Claim
44 words
In a tufting machine as recited in claim 2 wherein said cutting means includes a knife with said knife being stationary relative to said second looper means such that said loops are severed during movement of said second looper means relative to said knife.
Claim 5
Dependent Claim
48 words
In a tufting machine as recited in claim 1 wherein said first and said second looper means are adjustable such that said first looper means can be rendered inoperative and said second looper means is adjustable to a position for intercepting loops of the yarn from said needle.
Claim 6
Dependent Claim
30 words
In a tufting machine as recited in claim 4 further comprising cutting means cooperating with said second looper means for severing loops of yarn held by said second looper means.
Claim 7
Dependent Claim
33 words
In a tufting machine as recited in claim 1 wherein said second looper means is adjustable in a plane parallel to a tangent of an arc described by said first oscillating looper means.
Claim 8
Dependent Claim
19 words
In a tufting machine as recited in claim 6 wherein said second looper means has a substantially reciprocal motion.
Claim 9
Dependent Claim
35 words
In a tufting machine as recited in claim 7 further comprising stationary knife means cooperating with said second looper means for severing loops of yarn held by said second looper means during relative movement thereof.
Claim 10
Dependent Claim
22 words
In a tufting machine as recited in claim 8 wherein said second looper means and said stationary knife means are independently adjustable.
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) | 1974-11-08 | 1975-05-10 | 1975-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-08 | 1979-05-10 | 1979-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-08 | 1983-05-10 | 1983-11-09 | $7700.00 | Window Closed / Lapsed |