The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 15, 1990

Filed:

Feb. 10, 1989
Applicant:
Inventor:

Kiichi Yamatsuta, Kanagawa, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03B / ;
U.S. Cl.
CPC ...
65-2 ; 264169 ; 65-1 ;
Abstract

In a method of restarting operations for manufacturing filaments from a molten mass of a thermoplastic material after the occurrence of the breaking of a filament, the filaments being drawn at a regular, high speed from a large number of orifices formed in the bottom of a bushing, a bead of the molten mass formed at an orifice where the breaking of a filament occurs is detected to thereby generate a signal; the speed of elongating the filaments is reduced upon receiving the signal so that a filament elongated in the vicinity of the bead at the reduced speed is brought into contact with the bead elongated by gravity, and elongates the bead into a filament having a larger diameter, during which operations to produce a regular filament product are stopped; and the speed of elongating the filaments is increased to the regular speed.


Find Patent Forward Citations

Yamatsuta, Kiichi. (1990). Method of restarting operations for manufacturing filaments of a (U.S. Patent No. 4925471). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4925471

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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