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:
Jan. 01, 2013
Filed:
Jul. 28, 2006
Lutgard Dejonghe, Lafayette, CA (US);
Craig Jacobson, Moraga, CA (US);
Michael Tucker, Oakland, CA (US);
Steven Visco, Berkeley, CA (US);
Lutgard DeJonghe, Lafayette, CA (US);
Craig Jacobson, Moraga, CA (US);
Michael Tucker, Oakland, CA (US);
Steven Visco, Berkeley, CA (US);
The Regents of the University of California, Oakland, CA (US);
Abstract
Tubular objects having two or more concentric layers that have different properties are joined to one another during their manufacture primarily by compressive and friction forces generated by shrinkage during sintering and possibly mechanical interlocking. It is not necessary for the concentric tubes to display adhesive-, chemical- or sinter-bonding to each other in order to achieve a strong bond. This facilitates joining of dissimilar materials, such as ceramics and metals.