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

Circular warp knit composite cord

Patent 4838043 Issued on June 13, 1989. Estimated Expiration Date: Icon_subject April 18, 2008. 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

3255614

3738125

3748874

3808840

3842628

Machine for knitting cord-like structures
Patent #: 3939671
Issued on: 02/24/1976
Inventor: Lawson ,   et al.

Slide fastener stringer
Patent #: 4123830
Issued on: 11/07/1978
Inventor: Matsuda ,   et al.

Warp knitted ware with reinforcing threads Patent #: 4518640
Issued on: 05/21/1985
Inventor: Wilkens

Inventor

Assignee

Application

No. 07/182497 filed on 04/18/1988

US Classes:

66/170, Articles66/192Warp

Examiners

Primary: Reynolds, Wm. Carter

Attorney, Agent or Firm

International Classes

D04B 21/20 (20060101)
D04B 25/02 (20060101)
D04B 21/00 (20060101)
D04B 25/00 (20060101)

Abstract

The circular warp knit composite cord includes a circular warp knit tube with a plurality of wales of base yarn needle loops circumferentially spaced around the tube. The base yarns forming the wales of needle loops also form laps extending between and the interconnecting the circumferentially spaced wales of base yarn needle loops. Inlaid yarns are interlaced in selected ones of the wales of the base yarn needle loops and extend therealong to control longitudinal stretchability of the circular warp knit tube. If desired, a core element can be provided to extend longitudinally along the center of the circular warp knit tube. The knitting of the composite card is carried out on a circular warp knitting machine including circularly arranged and circumferentially spaced-apart needles supported for simultaneous longitudinal movement between an upper clearing level and a lower stitch loop forming level.

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