The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 30, 2000
Filed:
May. 02, 1997
Applicant:
Inventors:
Doug Wilson, Laguna Beach, CA (US);
Raj Mathur, Huntington Beach, CA (US);
Gary Pruett, Cypress, CA (US);
Robert Howard Metter, Orange, CA (US);
Assignee:
SGL Carbon Composites, Gardena, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428408 ; 442179 ;
Abstract
A chemical process apparatus component comprising a high purity, corrosion resistant composite including a continuous carbon fiber reinforced carbon matrix having a level of total metal impurity below about 10 ppm, preferably below about 5 ppm. Most preferably, the composite has a level of metal impurity below the detection limit of inductively coupled plasma spectroscopy for the metals Ag, Al, Ba, Be, Ca, Cd, Co, Cr, Cu, K, Mg, Mn, Mo, Na, Ni, P, Pb, Sr and Zn.