Claims
- 1. An arrangement for a method of coating a fibre, in which a fiber to be coated is passed through an inlet duct with a restricted inlet opening, is guided through a pressure chamber filled with liquid coating material, and after being coated is drawn through the outlet opening of a nozzle, the coating material being supplied under pressure to the pressure chamber, the coating material being supplied at such a pressure and in such a quantity that the material rises in the inlet duct up to a certain level to form a convex meniscus, said arrangement comprising a housing provided with a sidewall portion, a bottom wall portion, a pressure chamber, a nozzle with an outlet opening for said fiber in communication with the pressure chamber, a closure part transverse to, and cooperating with the sidewall portion of said housing, for closing the upper side of said pressure chamber and provided with an inlet duct with a restricted inlet opening, and communicating with said pressure chamber for supplying fiber to said pressure chamber, a cover part, provided with a central opening for said fiber and cooperating with the sidewall portion above the closure part, thereby closing the housing and providing a space in the housing above the closure part, a first supply opening situated in the housing above the closure part for supplying gas to the space above the closure part, a second supply opening situated in the sidewall portion of the housing for supplying liquid coating material to the pressure chamber and an overflow opening situated in the sidewall portion of the housing, the overflow opening in the sidewall portion of the housing being provided at a height lower than the level of the restricted inlet opening.
- 2. An arrangement as claimed in claim 1, in which the inlet duct has a guide duct for the guidance of a fibre to be coated, characterized in that the guide duct forms a connection between the restricted inlet opening and the pressure chamber.
- 3. An arrangement as claimed in claim 2, characterized in that a tubular member comprises the inlet duct with the restricted inlet opening and the guide duct and is exchangeably secured on the closure part.
- 4. An arrangement as claimed in claim 1, characterized in that the housing has a circulation chamber which surrounds the part of the chamber facing the outlet opening.
- 5. An arrangement for a method of coating a fiber, in which a fiber to be coated is passed through an inlet duct with a restricted inlet opening, is guided through a pressure chamber filled with liquid coating material, and after being coated is drawn through the outlet opening of a nozzle, the coating material being supplied under such pressure to the pressure chamber, at such a pressure and in such a quantity that the material rises in the inlet duct up to a certain level to form a convex meniscus, said arrangement comprising a housing provided with a sidewall portion, a bottom wall portion, a pressure chamber, a closure part transverse to, and cooperating with the sidewall portion of the housing for closing the upper side of the pressure chamber, said closure part being provided with an inlet duct with a restricted inlet opening for supplying fiber to said chamber, said inlet duct forming a connection between the restricted inlet opening and the pressure chamber and being a guide duct formed of a tubular member made of polytetrafluorethylene, a nozzle with an outlet opening for the fiber in communication with the pressure chamber, a cover part provided with a central opening for the fiber and cooperating with the sidewall portion above the closure part, thereby closing the housing and providing a space in the housing above the closure part, a first supply opening situated in the housing above the closure part for supplying gas to the space above the closure part, a second supply opening situated in the sidewall portion of the housing for supplying liquid coating material to the pressure chamber and an overflow opening for said liquid coating material situated in the sidewall portion of the housing at a height lower than the level of the restricted inlet opening wall portion.
Priority Claims (1)
Number |
Date |
Country |
Kind |
8501145 |
Apr 1985 |
NLX |
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Parent Case Info
This is a division of application Ser. No. 853,295, filed 4/17/86, now U.S. Pat. No. 4,704,307, which is a continuation-in-part of application Ser. No. 780,511, filed 9/26/85, now abandoned.
US Referenced Citations (6)
Divisions (1)
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Number |
Date |
Country |
Parent |
853295 |
Apr 1986 |
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Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
780511 |
Sep 1985 |
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