Circular warp-knit electromagnetic emission-shielding gasket

Patent 5603514 Issued on February 18, 1997. Estimated Expiration Date:

August 23, 2014. 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.

Abstract Claims Description Full Text

Patent References

Re33256

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Inventors

Application

No. 294737 filed on 08/23/1994

US Classes:

277/652, Distinct sheath or covering277/920SEAL INCLUDING ELECTROMAGNETIC SHIELDING FEATURE

Examiners

Primary: Cummings, Scott W.

Attorney, Agent or Firm

Bell, Seltzer, Park & Gibson, P.A.

Foreign Patent References

2256092 GB 11/12/1992

International Class

F16J 015/12

Abstract

A gasket is disclosed for shielding from electromagnetic emissions and interference (EMI) that exhibits excellent characteristics of recovery, bending, and tangential compression over a wide range of frequencies. The gasket comprises a knitted core of monofilament synthetic polymer yarns, and a circular warp knitted sheath over the monofilament knitted core, with the sheath being sufficiently conductive to provide shielding from electromagnetic interference over a wide range of frequencies.