US4030743A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synthetic yarn device
Assignee: Milliken Research Corp
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Filing: 1976-05-24
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Granted: 1977-06-21
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Expires: 1996-05-24
Abstract
Abstract Apparatus and method to prevent the slippage of a knot in tied synthetic yarn so that the tied yarns will not separate in the textile operation. The knotted yarns to be locked together actuate the switch to apply heat to the yarns to lock the knot in the yarns and sever the tails of the tied yarns.
Inventors
- 👤 William P. Warthen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:12
CPC Classifications
D; D03; D03J; D03J3/00; Y; Y10; Y10T; Y10T156/00; Y10T156/12; Y10T156/1313; Y10T83/00; Y10T83/04; Y10T83/0405; Y10T83/041
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
89 words
An apparatus to sever the tails of two tied yarns comprising: a source of power, heater means operably associated with and mounted on said source of power, switch means mounted on said source of power in line with said heater means on one side thereof, a notched plate mounted on said source of power on the other side of said heater means in line with said switch means and a slot in said switch means in line with the notch in the notched plate to accommodate a tied yarn.
Claim 2
Independent Claim
89 words
An apparatus to sever the tails of two tied yarns comprising: a source of power, heater means operably associated with and mounted on said source of power, switch means mounted on said source of power in line with said heater means on one side thereof, a notched plate mounted on said source of power on the other side of said heater means in line with said switch means and a slot in said switch means in line with the notch in the notched plate to accommodate a tied yarn.
Claim 3
Dependent Claim
34 words
The apparatus of claim 1 wherein the notch in said switch means is deeper than the notch in said notched plate whereby the tied yarn can be pulled down to actuate said switch means.
References Cited (Backward Citations)
US2514197A
Cited
US3358324A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-06-20 | 1980-12-20 | 1981-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-06-20 | 1984-12-20 | 1985-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-06-20 | 1988-12-20 | 1989-06-21 | $7700.00 | Window Closed / Lapsed |