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

Metal fabrics

Patent 5188813 Issued on February 23, 1993. Estimated Expiration Date: Icon_subject March 17, 2012. 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

3874645

Method for recovering platinum in a nitric acid plant
Patent #: 4412859
Issued on: 11/01/1983
Inventor: Hatfield ,   et al.

Fibre packs for ammonia oxidation
Patent #: 4435373
Issued on: 03/06/1984
Inventor: Knapton ,   et al.

Gold-plated tungsten knit RF reflective surface
Patent #: 4609923
Issued on: 09/02/1986
Inventor: Boan ,   et al.

Ammonia oxidation catalyst pack Patent #: 4869891
Issued on: 09/26/1989
Inventor: Handley

Inventors

Assignee

Application

No. 883521 filed on 03/17/1992

US Classes:

423/403, And ammonia as reactant66/125A, With yarn treatment66/202, Materials245/2, FABRICS428/608, Embodying fibers interengaged or between layers (e.g., paper, etc.)502/527.2Cell opening shape and dimensions are determined by the intersection of the woof and the warp of a woven structure (e.g., of a fabric or gauze, etc.)

Examiners

Primary: Langel, Wayne A.

Attorney, Agent or Firm

Foreign Patent References

  • A0275681 EP. 07/13/1988
  • A771524 FR. 10/13/2012
  • 1411800 GB. 10/13/1975
  • A2037606 GB. 07/13/1980
  • A2062486 GB. 05/13/1981

International Classes

C01B 021/26
D04B 021/12
D04B 021/14
D04B 021/16

Foreign Application Priority Data

1988-10-12 GB

Abstract

A fabric knitted from a precious metal fibre, especially platinum or palladium or alloys thereof, offers advantages as a catalyst gauze, for example in ammonia oxidation. A method for knitting at high weights involves the co-feeding of a supplementary fibre with the metal fibre.

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