U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Circular knitting machine

Patent 6082143 Issued on July 4, 2000. Estimated Expiration Date: Icon_subject August 14, 2017. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

3521466

Driving apparatus in take up unit of circular knitting machine
Patent #: 4671083
Issued on: 06/09/1987
Inventor: Sawazaki ,   et al.

Circular knitting machine
Patent #: 4879886
Issued on: 11/14/1989
Inventor: Okada, et al.

Device for driving take-up unit of circular knitting machine
Patent #: 5157949
Issued on: 10/27/1992
Inventor: Sawazaki, et al.

Take-off device having radial grooves for circular knitting machines
Patent #: 5249439
Issued on: 10/05/1993
Inventor: Fucik, et al.

Fabric take-up mechanism for circular knitting machines
Patent #: 5381676
Issued on: 01/17/1995
Inventor: Shibata, et al.

Draw-off device with adjustable tension for circular knitting machine
Patent #: 5457967
Issued on: 10/17/1995
Inventor: Scherzinger

Apparatus for controlling twist in a knitted fabric
Patent #: 5575162
Issued on: 11/19/1996
Inventor: Gray, et al.

Circular knitting machine with replaceable knitting head Patent #: 5649435
Issued on: 07/22/1997
Inventor: Bryant

Inventors

Assignee

Application

No. 911296 filed on 08/14/1997

US Classes:

66/151, Winding, from rotary needle bank66/147FABRIC MANIPULATION

Examiners

Primary: Worrell, Larry D. Jr.

Attorney, Agent or Firm

International Class

D04B 015/88

Abstract

A circular knitting machine. The apparatus includes a generally conventional circular knitting element for forming a tubular knit fabric. A tension-controlled roll take-up assembly is located downstream from the circular knitting element for receiving the tubular knit fabric and forming a fabric roll from the tubular knit fabric while, at the same time, maintaining substantially constant tension on the tubular knit fabric being formed by the circular knitting element. This allows very large fabric rolls to be formed. In the preferred embodiment, the circular knitting machine includes a tension-controlled umbrella storage feed mounting ring adjacent to the circular knitting element for supplying a plurality of yarn ends to the circular knitting element for forming the tubular knitted fabric. The umbrella storage feed mounting ring permits an operator to attend to most machine functions without the need for a ladder or catwalk. In addition, the location of the tension control elements along the perimeter of the umbrella storage feed mounting ring provides an additional yarn reservoir which helps prevent fabric defects by providing additional time to stop the machine before, for example, a broken end of yarn enters the machine.

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