Method for producing amalgamable alloy
Patent 4664855 Issued on May 12, 1987. Estimated Expiration Date: 
November 12, 2005. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
November 12, 2005. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3305356 3588951 3871876 Dental composition Silver-tin-copper-palladium alloy and amalgam thereof Process for the production of silver-tin master alloys for dental amalgams Patent #: 4479823 InventorsAssigneeApplicationNo. 06/796813 filed on 11/12/1985US Classes:264/11, By impinging plural liquid masses264/12, By impinging or atomizing with gaseous jet or blast420/502, Copper containing75/337, By impinging plural liquid streams75/359, Reduction75/955PRODUCING DENTAL PRODUCTExaminersPrimary: Silbaugh, Jan H.Assistant: Fertig, Mary Lynn Attorney, Agent or FirmInternational ClassesB22F 1/00 (20060101)B22F 9/08 (20060101) C22C 1/04 (20060101) A61K 6/02 (20060101) A61K 6/05 (20060101) AbstractA process for manufacturing an atomized amalgamable alloy having mold adaptation characteristics superior to other atomized alloys and comparable or better than those for ad-mixed type alloys (alloys which are mixtures of spherical and irregularly shaped particles), and physical properties comparable to ad-mixed alloys. The process includes the steps of: producing a melt of an amalgamable alloy; atomizing the alloy so as to form particles which are primarily irregular in shape; collecting the particles; drying the particles; mechanically working the particles so as to fracture and change their shape; classifying the particles to finer than 53 microns; heat treating the particles; and reducing oxides from the surface of the particles.Other References
Field of SearchBy impinging plural liquid masses | |
