US2800682A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Piezoelectric tube for applying liquid to running strands
Assignee: Akzo Nobel UK PLC
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Filing: 1954-02-23
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Granted: 1957-07-30
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Expires: 1974-02-23
Abstract
No abstract record available.
Inventors
- 👤 William P Dooley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:06
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/01; C04B35/46; C04B35/462; C04B35/465; C04B35/468; C04B35/4682; D; D01; D01D; D01D10/00; D01D10/04; D01D10/0436; D01D10/0481; Y; Y10; Y10S; Y10S8/00; Y10S8/12
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
199 words
APPARATUS FOR SPINNING ARTIFICAL YARN COMPRISING A SPINNERET, A SPINNING CHAMBER FOR HOUSING SAID SPINNERET AND SUPPORTING IT IN A DESIRED POSITION, DUCT MEANS FOR SUPPLYING THE FILAMENT-FORMING MATERIAL TO THE SPINNERET EXTENDING THROUGH A WALL OF THE CHAMBER, CONDUIT MEANS FOR SUPPLYING A LIQUID COAGULANT TO THE CHAMBER, AN OPENING IN SAID CHAMBER IN SPACED OPPOSED RELATION WITH THEE FACE OF THE SPINNERET, A CONDUIT CONNECTED WITH THE CHAMBER TO PLACE SAID OPENING IN ALIGNMENT WITH THE INTERIOR OF THE CONDUIT, THE CONDUIT EXTENDING AWAY FROM THE CHAMBER IN A DIRECTION GENERALLY PERPENDICULAR WITH RESPECT TO THE FACE OF THE SPINNERET AND TERMINATING IN A LIQUID RECIEVER, GUIDE MEANS FOR ALLIGNING THE YARN GENERALLY ALONG THE AXIS OF THE CONDUIT AS IT PROCEEDS THERETHROUGH AND AWAY FROM THE SPINNERET, SAID CONDUIT COMPRISING A PIEZOELECTRIC MATERIAL, CURRENT-CONDUCTING MEANS FOR SUBSTANTIALLY COVERING THE OUTER SURFACE OF THE CONDUIT, CURRENT-CONDUCTING MEANS IN CONTACT WITH THE LIQUID COAGULANT WHICH ENTERS AND TRAVERSES THE CONDUIT, SAID CURRENT-CONDUCTING MEANS CONSTUITUTING PORTIONS OF AN ALTERNATING CURRENT-SUPPLYING CIRCUIT, MEANS FOR APPLYING A CURRENT OF ULTRASONIC FREQUENCY TO SAID CIRCUIT, AND COAGULANT SUPPLY MEANS CONNECTED WITH SAID COAGULANT SUPPLY DUCT FOR MAINTAINING THE CONDUIT FULL OF LIQUID.
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) | 1960-07-29 | 1961-01-28 | 1961-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-29 | 1965-01-28 | 1965-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-29 | 1969-01-28 | 1969-07-30 | $7700.00 | Window Closed / Lapsed |