Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Composite having voids in a component
Reexamination Certificate
2005-06-02
2009-10-20
Xu, Ling (Department: 1794)
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Composite having voids in a component
C428S304400, C428S312200, C428S315500, C428S319100, C428S688000, C428S702000
Reexamination Certificate
active
07604857
ABSTRACT:
The invention relates to a fired refractory shaped part whose structure: a) consists of up to at least 75% by weight of a pre-fired refractory secondary material with a grain size of up to 3 mm, and; b) has an open pore volume ranging from 10 to 30% that, after firing, is filled, at least in part, with a carbon-containing material, whereby; c) the carbon content is >3% by weight with regard to the shaped part.
REFERENCES:
patent: 4789651 (1988-12-01), Sugie et al.
patent: 5151201 (1992-09-01), Fishler et al.
patent: 5363995 (1994-11-01), Fitch et al.
patent: 25 33 862 (1976-02-01), None
patent: 34 28 252 (1985-02-01), None
patent: 0 293 600 (1988-12-01), None
Müller Mira
Wiesel Martin
Parmelee Christopher L.
Refractory Intellectual Property GmbH & Co. KG
Walker & Jocke
Xu Ling
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