发明名称 Ultrasonic machining sonotrode mfg. system for dental prosthesis mfr - uses negative mould of ultrasonic sonotrode crown to mfr. machining sonotrode
摘要 The mfr. system uses a sonotrode crown (54) of an ultrasonic sonotrode (18) for forming a negative hollow mould (64), used in turn to form the sonotrode crown (66) of the machining sonotrode. Pref. the negative mould of the sonotrode crown is formed via a displaced moulding mass (62), which is filled with a plastics mass after hardening, in turn hardened to form the crown of he machining sonotrode. ADVANTAGE - Rapid mfr. with high mfg. accuracy.
申请公布号 DE4342078(A1) 申请公布日期 1994.06.16
申请号 DE19934342078 申请日期 1993.12.09
申请人 THERA-PATENT GMBH & CO KG GESELLSCHAFT FUER INDUSTRIELLE SCHUTZRECHTE, 82229 SEEFELD 发明人 HAHN, RAINER, DR., 72076 TUEBINGEN;KORAN, PETER, DR., 82362 WEILHEIM;BURGER, BERND, 82239 ALLING;LANDGRAF, JOHANNES, 82211 HERRSCHING;GUGGENBERGER, RAINER, DR., 82211 HERRSCHING
分类号 A61C13/00;B28D1/30;B28D5/04;(IPC1-7):A61C13/00;A61C5/08 主分类号 A61C13/00
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