US3645080A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and method for manufacturing a fluffy yarn
Assignee: Toray Industries Inc
•
Filing: 1969-11-21
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Granted: 1972-02-29
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Expires: 1989-11-21
Abstract
Abstract An apparatus for manufacturing a fluffy yarn used in combination with a yarn-advancing mechanism and having one or more fluffraising members axially rotational in contact with a ballooning portion of the advancing yarn for partially and intermittently cutting fibrous materials composing the yarn. The fluff-raising member may be rotated positively.
Inventors
- 👤 Seiichi Yamagata
- 👤 Masaaki Sakai
- 👤 Toshimoto Matsubara
- 👤 Shigeji Yamashita
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:31
CPC Classifications
D; D02; D02J; D02J3/00; D02J3/02; B; B65; B65H; B65H71/00; B65H71/002; D02G; D02G1/00; D02G1/02; D02G1/0206; D02G1/0246; B65H2701/00; B65H2701/30; B65H2701/31
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
107 words
An improved apparatus for manufacturing a fluffy yarn, comprising means for supplying a multifilament yarn, means for advancing said yarn from said supply, means for producing a balloon in said advancing yarn, means for stabilizing said balloon, means for taking up said yarn from said ballooning means and fluff-raising means disposed externally of said balloon in position to be intermittently contacted by said yarn in said balloon, said fluff-raising means comprising at least one rotatable fluff-raising member provided on its peripheral surface engageable by said ballooning yarn with cutting elements for severing filaments of said multifilament yarn through contact therewith to produce a fluff on said yarn.
Claim 2
Dependent Claim
107 words
An improved apparatus for manufacturing a fluffy yarn, comprising means for supplying a multifilament yarn, means for advancing said yarn from said supply, means for producing a balloon in said advancing yarn, means for stabilizing said balloon, means for taking up said yarn from said ballooning means and fluff-raising means disposed externally of said balloon in position to be intermittently contacted by said yarn in said balloon, said fluff-raising means comprising at least one rotatable fluff-raising member provided on its peripheral surface engageable by said ballooning yarn with cutting elements for severing filaments of said multifilament yarn through contact therewith to produce a fluff on said yarn.
Claim 3
Dependent Claim
23 words
An improved apparatus according to claim 1, in which said fluff-raising member is rotated by engagement of said advancing yarn with said member.
Claim 4
Dependent Claim
15 words
An improved apparatus according to claim 1, comprising drive means for rotating said fluff-raising member.
Claim 5
Dependent Claim
39 words
An improved apparatus according to claim 3, in which said drive means comprises a pulley on said fluff-raising member and means for guiding said advancing yarn over said pulley to drive said pulley and thereby drive said fluff-raising member.
Claim 6
Dependent Claim
37 words
An improved apparatus according to claim 3, in which said drive means comprises a fluid drive rotor on said fluff-raising member and means for ejecting fluid on said rotor to drive said rotor and said fluff-raising member.
Claim 7
Dependent Claim
19 words
An improved apparatus according to claim 5, in which said rotor comprises vanes disposed to receive said ejected fluid.
Claim 8
Dependent Claim
33 words
An improved apparatus according to claim 3, in which said drive means comprises a fluid drive rotor and suction means for producing a fluid flow to drive said rotor and said fluff-raising member.
Claim 9
Dependent Claim
23 words
An improved apparatus according to claim 7, in which said rotor comprises vanes disposed to receive fluid flow produced by said suction means.
Claim 10
Dependent Claim
25 words
An improved apparatus according to claim 3, in which said drive means comprises means connecting said fluff-raising member with said means for advancing said yarn.
Claim 11
Dependent Claim
37 words
An improved apparatus according to claim 1, in which the axis of rotation of said fluff-raising member is inclined to the central axis of said balloon at an angle greater than 0* and less than 90* .
Claim 12
Dependent Claim
14 words
An improved apparatus according to claim 1, in which said fluff-raising member is cylindrical.
Claim 13
Dependent Claim
28 words
An improved apparatus according to claim 1, in which said fluff-raising member has a transverse cross-sectional profile that varies at different points along the axis of said member.
Claim 14
Dependent Claim
17 words
An improved apparatus according to claim 1, in which said fluff-raising member is of circular cross section.
Claim 15
Dependent Claim
17 words
An improved apparatus according to claim 1, in which said fluff-raising member is of polygonal cross section.
Claim 16
Dependent Claim
22 words
An improved apparatus according to claim 1, in which said fluff-raising means comprises a plurality of fluff-raising members of different cross-sectional size.
Claim 17
Dependent Claim
18 words
An improved apparatus according to claim 1, in which the yarn-engaging surface of said fluff-raising member is abrasive.
Claim 18
Dependent Claim
19 words
An improved apparatus according to claim 1, in which said cutting elements of said fluff-raising member comprise knife edges.
Claim 19
Dependent Claim
23 words
An improved apparatus according to claim 1, in which said fluff-raising member is provided with a screw-thread-like surface engaged by said ballooning yarn.
Claim 20
Dependent Claim
16 words
An improved apparatus according to claim 1, in which said balloon-producing means comprises a ring-twisting mechanism.
Claim 21
Dependent Claim
32 words
An improved apparatus according to claim 19, in which said ring-twisting mechanism comprises a ring rail and a snail guide, the distance between said ring rail and snail guide being maintained constant.
Claim 22
Dependent Claim
17 words
An improved apparatus according to claim 1, in which said balloon producing means comprises a double-twister-type mechanism.
Claim 23
Dependent Claim
20 words
An improved appAratus according to claim 1, in which said balloon-producing means comprises a false-twisting mechanism having a false-twisting spindle.
Claim 24
Dependent Claim
76 words
An improved method for manufacturing a fluffy yarn from a multifilament yarn, which comprises advancing said yarn from a supply, producing a balloon in said advancing yarn stabilizing said balloon to maintain the ballooning condition of said yarn substantially constant, taking up said yarn from said balloon and engaging said ballooning yarn externally of said balloon with rotating fluff-raising means having fluff-raising elements severing filaments of said multifilament yarn and producing a fluff on said yarn.
Claim 25
Dependent Claim
76 words
An improved method for manufacturing a fluffy yarn from a multifilament yarn, which comprises advancing said yarn from a supply, producing a balloon in said advancing yarn stabilizing said balloon to maintain the ballooning condition of said yarn substantially constant, taking up said yarn from said balloon and engaging said ballooning yarn externally of said balloon with rotating fluff-raising means having fluff-raising elements severing filaments of said multifilament yarn and producing a fluff on said yarn.
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Cited
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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) | 1975-02-28 | 1975-08-30 | 1976-02-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-28 | 1979-08-30 | 1980-02-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-28 | 1983-08-30 | 1984-02-29 | $7700.00 | Window Closed / Lapsed |