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:
Apr. 05, 1977
Filed:
Nov. 19, 1973
Applicant:
Inventor:
Albert G Tobin, Smithtown, NY (US);
Assignee:
Grumman Aerospace Corporation, Bethpage, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B / ; C04B / ; C04B / ;
U.S. Cl.
CPC ...
264 63 ; 106 / ; 106 52 ; 106D / ; 264 66 ; 264125 ;
Abstract
Cenospheres have been formed into a closed-cell ceramic foam by the application of heat. The closed-cell ceramic foam has excellent insulating properties, is readily machinable, and has cohesive structure which makes it useful for high-temperature insulating applications such as heat shields to protect space vehicles when they re-enter the earth's atmosphere.