Refractory articles

Details Refractory articles Refractory articles

2006-11-21

2006-11-21

Kastler, Scott (Department: 1742)

Metallurgical apparatus

Means for melting or vaporizing metal or treating liquefied...

By separating metal in a molten mass from undesired...

C210S510100

Reexamination Certificate

active

07138084

ABSTRACT:
A filter for molten metal is an open-pored porous material comprising particles of refractory material embedded in and bonded together by a carbon matrix bonding material. The filter can be made by forming a porous article from refractory particles, e.g. refractory oxide, carbide or graphite, and a carbon-rich binder, e.g. tar, pitch or an organic (preferably aromatic) polymer that degrades to form carbon on pyrolysis, and then firing the porous article to generate the carbon matrix in which the refractory particles are embedded. The porous article is preferably made by coating a reticulated polyurethane foam with binder and refractory particles, and firing at preferably no higher than 800° C.

REFERENCES:
patent: 3524548 (1970-08-01), McDonald et al.
patent: 3859421 (1975-01-01), Hucke
patent: 3893917 (1975-07-01), Pryor
patent: 4265659 (1981-05-01), Blome
patent: 4851304 (1989-07-01), Miwa et al.
patent: 5093289 (1992-03-01), Braetsch
patent: 5124040 (1992-06-01), Hitchings
patent: 5180409 (1993-01-01), Fischer
patent: 6254998 (2001-07-01), Tuchinsky
patent: 0 308 928 (1989-03-01), None
patent: 0 510 852 (1992-01-01), None
patent: 0 507 463 (1992-10-01), None
patent: 0 708 064 (1995-10-01), None
patent: 0 649 334 (1996-03-01), None
patent: 0 708 064 (1996-04-01), None
patent: 2 027 688 (1980-02-01), None
patent: 63-216933 (1988-09-01), None
patent: 1-141884 (1989-06-01), None
patent: 2-268953 (1990-11-01), None
patent: 5-51278 (1993-03-01), None
patent: 5-270889 (1993-10-01), None
patent: 6-293561 (1994-10-01), None
patent: 7-54032 (1995-02-01), None
patent: 9-10922 (1997-01-01), None
patent: WO 97/45381 (1997-12-01), None
patent: 99 65843 (1999-12-01), None
FOSECO Advertisment “Commited to Foundries” Sep. 9, 2005.
Wiese et al, “Innovative product development using virtual planning and simulation delivers greater flexibility in the design of gating systems for steel castings”, WFO Technical Forum, Dec. 2003.
Aoki et al “Highly Porous Silicon Carbide Produced by Siliconizing Carbon Preforms” School of Materials Science, University ofr Bath, Bath UK. pp. 778-779. Dec. 1995.□□.
National Carbon and Graphite and Karbte Brochure, National Carbon Company, p. 8 Dec. 1951.
Hand-book upon filtration (Brno, 2000) (2 pages).
Eurocarbon 2000, World Conference on Carbon (Jul. 2000) (2 pages).
Základy technologie silikátimg id="CUSTOM-CHARACTER-00001" he="2.79mm" wi="2.12mm" file="US07138084-20061121-P00001.TIF" alt="custom character" img-content="character" img-format="tif" ?Prof. Ing. Jan Hlavá{hacek over (c)} (Phrha 1988) (2 pages).
Technologie, Prof. Ing. Dr. Vladimír Lach (Praha 1981) (2 pages).
Technologie Keramiky, Ing. Karel Zádrapa (Praha 1975) (2 pages).
Patent Abstracts of Japan; JP06-269622A; “Ceramic Filter for Soot Removal and Recovery”; Sep. 27, 1994; Koichi, et al; (2 pgs).
Patent Abstracts of Japan; JP01242118A2; Porous Ceramic Filter; Sep. 27, 1989, Koichi et al; (2 pgs).
Patent Abstracts of Japan; 60221169A; “Filter Medium for Molten Metal”; Nov. 5, 1985; Chobe (1 pg).
Stelex*Pro “A New Generation for the Filtration of Steel”; Foseco (4 pgs), no date.
Stelex*Pro; “Casting: 76 mm (3″) Wire Socket Casting”; Filtration Case Study Steel; Foseco (1 pg), no date.
Black, J.W., et al; “Advanced Reticulated Ceramics for Aluminum Filtration”;presented at 118thAnnual TMS Meeting; Feb. 27 to Mar. 2, 1989, 5pgs.
Lee, J.C., et al; A Study on the Preparation and Characterization of Carbon Fiber Composite Filter; published in 1995, with English Translation (abstract), Dec. 1995.
Strom, L.A., et al; “Novel Applications of Fully Sintered Reticulated Ceramics”;Mater. Res. Soc. Symp. Proc.; vol. 371, pp. 321-326 (1995), Dec. 1995.

Affiliated with

Also associated with

Rating

Refractory articles does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Refractory articles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Refractory articles will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3621863