US3759300A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Intermediate weft thread supply apparatus for looms
Assignee: Sulzer AG
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Filing: 1972-02-28
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Granted: 1973-09-18
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Expires: 1992-02-28
Abstract
Abstract In a thread storage and supply device including a drum supported at one end from a shaft and including means to wind a thread onto the drum for subsequent pull-off over the free end of the drum, an annular member surrounds the drum with close clearance therefrom at the end from which the drum is supported, thereby preventing the thread from becoming entangled or wound up upon the shaft.
Inventors
- 👤 E Pfarrwaller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:11
CPC Classifications
B; B65; B65H; B65H51/00; B65H51/20; B65H51/22; B65H2701/00; B65H2701/30; B65H2701/31
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
133 words
Thread storage apparatus comprising a hollow rotatable shaft, a bearing supporting the shaft for rotation, a body having an exterior surface conforming substantially to a surface of revolution, means supporting said body from one end of said shaft for rotation with respect to said shaft, a flyer arm affixed to said shaft and extending radially and axially thereof into exterior overlapping relation with the surface of said body, means restraining said body against rotation whereby a thread passed through said shaft and out onto said arm will be wound up on said body upon rotation of said shaft and may be pulled off the end of said body remote from said arm, and an annular member affixed to said shaft and surrounding with close clearance the end of said body adjacent the shaft.
Claim 2
Dependent Claim
133 words
Thread storage apparatus comprising a hollow rotatable shaft, a bearing supporting the shaft for rotation, a body having an exterior surface conforming substantially to a surface of revolution, means supporting said body from one end of said shaft for rotation with respect to said shaft, a flyer arm affixed to said shaft and extending radially and axially thereof into exterior overlapping relation with the surface of said body, means restraining said body against rotation whereby a thread passed through said shaft and out onto said arm will be wound up on said body upon rotation of said shaft and may be pulled off the end of said body remote from said arm, and an annular member affixed to said shaft and surrounding with close clearance the end of said body adjacent the shaft.
Claim 3
Dependent Claim
21 words
Apparatus according to claim 1 wherein said clearance is of the same order of magnitude as the diameter of said thread.
Claim 4
Dependent Claim
15 words
Apparatus according to claim 1 wherein the close clearance is between 0.1 and 1.0 Millimeter.
Claim 5
Dependent Claim
24 words
Apparatus according to claim 1 wherein said body includes a conical enlargement and wherein said annular member surrounds the large end of said enlargement.
Claim 6
Dependent Claim
30 words
Apparatus according to claim 1 wherein said body includes a conical enlargement and wherein said member includes adjacent said body a conical portion matching the conical enlargement of said body.
Claim 7
Dependent Claim
21 words
Apparatus according to claim 1 wherein said annular member includes adjacent said body a conical portion aligned with said flyer arm.
Claim 8
Dependent Claim
25 words
Apparatus according to claim 6 wherein said body includes a conical enlargement with the large end thereof adjacent the small end of said conical portion.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-17 | 1977-03-19 | 1977-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-17 | 1981-03-19 | 1981-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-17 | 1985-03-19 | 1985-09-18 | $7700.00 | Window Closed / Lapsed |