US3690575A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple yarn package take-up
Assignee: Toray Industries Inc
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Filing: 1970-11-05
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Granted: 1972-09-12
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Expires: 1990-11-05
Abstract
Abstract Multiple package filament winding apparatus having at least two take-up positions placed right and left as a pair, arranged for taking up yarns alternately, fed by a traversing roller which has two traversing slots separated right and left, and two alternately crossing transfer slots, each of which connects into each of the traversing slots.
Inventors
- 👤 Shoji Ito
- 👤 Kotaro Fujioka
- 👤 Mitsuhiro Okamoto
- 👤 Tetsuya Kikuchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:46
CPC Classifications
B; B65; B65H; B65H54/00; B65H54/02; B65H54/28; B65H54/2836; B65H54/2842; B65H57/00; B65H57/28; B65H67/00; B65H67/04; B65H67/044; B65H67/056; B65H2701/00; B65H2701/30; B65H2701/31
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
141 words
Filament winding apparatus including supply means forming a filament feed path, a. means forming a pair of take-up positions arranged right and left as a pair, each of said take-up positions including a-1. a bobbin for taking up the filament and a-2. means for rotating said bobbin; b. a traversing roller arranged along said filament feed path and extending in correspondence to both of said take-up portions, said traversing roller including b-1. a pair of endless traversing slots arranged to receive and to guide said filament for traversing said filament between said take-up positions, and b-2. a pair of alternately intersecting transfer slots arranged for connecting said traversing slots; c. means for rotating said traversing roller in a predetermined direction; d. a traversing center guide; and e. driving means for alternately shifting said traversing center guide against said two take-up positions.
Claim 2
Dependent Claim
141 words
Filament winding apparatus including supply means forming a filament feed path, a. means forming a pair of take-up positions arranged right and left as a pair, each of said take-up positions including a-1. a bobbin for taking up the filament and a-2. means for rotating said bobbin; b. a traversing roller arranged along said filament feed path and extending in correspondence to both of said take-up portions, said traversing roller including b-1. a pair of endless traversing slots arranged to receive and to guide said filament for traversing said filament between said take-up positions, and b-2. a pair of alternately intersecting transfer slots arranged for connecting said traversing slots; c. means for rotating said traversing roller in a predetermined direction; d. a traversing center guide; and e. driving means for alternately shifting said traversing center guide against said two take-up positions.
Claim 3
Dependent Claim
30 words
Filament winding apparatus according to claim 1, wherein an end portion of each of said two transfer slots is connected to each of said traversing slots through a tail-catching slot.
Claim 4
Dependent Claim
76 words
Filament winding apparatus according to claim 1 wherein said roller further includes a first tail-catching slot (89) positioned between said pair of transfer slots (87) (94) and one of said traversing slots (91) (92), and a second tail-catching slot (93) positioned outside the other one of said traversing slots (95) and is coupled to said pair of transfer slots (87) (94) through filament guide slots (96) (97) and said other one of said traversing slots (95).
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) | 1975-09-12 | 1976-03-13 | 1976-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-12 | 1980-03-13 | 1980-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-12 | 1984-03-13 | 1984-09-12 | $7700.00 | Window Closed / Lapsed |