Patent · US Expired

Double twisting machine

US4107910A · kind A · utility

8Cited by

8References

14Claims

0Family size

Assignee

LTG Lufttechnische Gesellschaft mit beschrankter Haftung · DE

Inventors

Joachim Furstenberg · Esslingen am Neckar, DE
Dietmar Hencke · Asperg, DE

Key dates

Filing date	Oct 4, 1976
Grant date	Aug 22, 1978
Priority date	—
Expiry date	Oct 4, 1996

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P70/62
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

A double twisting machine is equipped with air flow control devices which create preferred conditions in the vicinity of each twisting station and, particularly, in the immediate vicinity of the twisting mechanism and the thread balloons. Pre-conditioned air, adjusted for temperature and humidity, is delivered through a nozzle located above each twisting spindle and is directed generally to the location of the thread guide loop. The protective container for the bobbin has a lower opening which permits the air flowing into the container from the top to emerge below where an exhaust conduit carries it away. A coaxial shroud surrounds the protective container and forms an annular air passage through which conditioned air may flow in both directions.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.