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:
Oct. 08, 1991
Filed:
Feb. 27, 1990
Applicant:
Inventor:
Susumu Takahashi, Yokohama, JP;
Assignee:
KantoYaking Kogyo K.K., Kanagawa, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C / ; C01B / ;
U.S. Cl.
CPC ...
264 291 ; 53427 ; 53432 ; 53440 ; 264 30 ; 264101 ; 264137 ; 264294 ; 4234474 ; 423449 ;
Abstract
Binder-impregnated carbon fiber rovings and the like, which are sticky and difficult to handle, are stacked to form modules that are packed in resinous bags under vacuum, and are then shaped to desired dimensions and densities without employing conventional molds, but simply by placing them in the confines of jigs or ruler frames and then releasing them from vacuum and expanding them to the desired dimensions. They are thereafter subjected to heat treatments to provide high temperature resistant carbon fiber-reinforced carbon or graphite modules which work, for example, as thermal insulation and refractory walls in high temperature heating furnaces.