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:
Mar. 23, 1999
Filed:
Oct. 28, 1996
Dilip K Chatterjee, Rochester, NY (US);
Theodore R Kolb, Rochester, NY (US);
James J Ross, East Rochester, NY (US);
Syamal K Ghosh, Rochester, NY (US);
Eastman Kodak Company, Rochester, NY (US);
Abstract
An improved die retaining element has a highly efficient, durable and wear and abrasion resistant flange portion surrounding an opening for securing a die mold therein. The flange portion may have practically any geometric configuration, such as round, but is most effective when in a continuous plane with the powder feed box in sliding contact with a feed box. In particular, the flange portion may selectively have either a high precision tetragonal zirconia polycrystal (TZP) ceramic or zirconia-alumina ceramic composite, depending on the surface material of the feeder box in sliding contact therewith. In one embodiment, the flange portion has tetragonal zirconia polycrystal ceramic and the feeder box has zirconia-alumina ceramic composite sliding surface. In another embodiment, flange portion has a zirconium-alumina ceramic composite sliding portion and the feeder box has a tetragonal zirconia polycrystal ceramic sliding portion.