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US Patent 6082143 - Circular knitting machine
US Patent Issued on July 4, 2000
Estimated Patent Expiration Date:
August 14, 2017Estimated 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.
Estimated Patent Expiration Date:
August 14, 2017Estimated 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.AbstractA 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. | InventorsAssigneeApplicationNo. 911296 filed on 08/14/1997US Classes:66/151, Winding, from rotary needle bank66/147FABRIC MANIPULATIONField of Search66/8, Circular66/125R, FEEDING66/132R, Positive66/132T, Tape66/146, Strand tensions66/149R, Take-ups66/150, Special-shape work66/151, Winding, from rotary needle bank66/152, Continuous66/153, From rotary needle bank242/419, Drag on running material242/419.8, Rotary242/419.9With brake or clutchExaminersPrimary: Worrell, Larry D. Jr.Attorney, Agent or FirmUS Patent References3521466, 4671083, Driving apparatus in take up unit of circular knitting machineIssued on: 06/09/1987 Inventor: Sawazaki , et al.4879886, Circular knitting machine Issued on: 11/14/1989 Inventor: Okada, et al.5157949, Device for driving take-up unit of circular knitting machine Issued on: 10/27/1992 Inventor: Sawazaki, et al.5249439, Take-off device having radial grooves for circular knitting machines Issued on: 10/05/1993 Inventor: Fucik, et al.5381676, Fabric take-up mechanism for circular knitting machines Issued on: 01/17/1995 Inventor: Shibata, et al.5457967, Draw-off device with adjustable tension for circular knitting machine Issued on: 10/17/1995 Inventor: Scherzinger5575162, Apparatus for controlling twist in a knitted fabric Issued on: 11/19/1996 Inventor: Gray, et al.5649435Circular knitting machine with replaceable knitting head Issued on: 07/22/1997 Inventor: Bryant International ClassD04B 015/88 |
