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.

Date of Patent:
Sep. 02, 2008

Filed:

May. 08, 2003
Applicants:

Garry Gwozdz, Nazareth, PA (US);

Mark Mitchnick, East Hampton, NY (US);

David Fairhurst, Congers, NY (US);

Inventors:

Garry Gwozdz, Nazareth, PA (US);

Mark Mitchnick, East Hampton, NY (US);

David Fairhurst, Congers, NY (US);

Assignee:

Particle Sciences, Inc., Bethlehem, PA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B22F 1/02 (2006.01); B22F 3/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

Novel powders or particles are formed by associating them with relatively small proportions of hydrolysable liquid material. The resulting particle/liquid mass is placed in a mold and sintered under conditions of heat and pressure that enables at least some of the hydrolysable liquid to react within the sintered mass. The sintered mass displays a controllable range of properties such as increased density, increased tensile strength, and improved natural polish finish. The hydrolysable liquid may partially hydrolyze and/or react with the powders and particles, but the liquid is not completely (not 100%) reduced to an inorganic oxide prior to introduction to the mold and performance of the sintering process.


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