Boots – shoes – and leggings
Patent
1994-03-29
1995-09-19
Ruggiero, Joseph
Boots, shoes, and leggings
36441328, 36447424, 364476, 433223, G06F 1900, G05B 194099
Patent
active
054522196
ABSTRACT:
A method for the making of a tooth mold which includes the steps of scanning the surface of a model of a tooth to obtain data on the three-dimensional surface locations of the model, processing the data in a CAD/CAM computer, and using the processed data to fabricate a tooth mold. The scanning step involves subjecting a rotating tooth model to radiant energy from a laser beam, receiving and translating reflections of the radiant energy into electronic signals, and digitizing the signals into data of the three-dimensional surface locations of the tooth model. The processing step involves translating the data, editing the data, creating a three-dimensional surface pattern of the tooth model, evaluating the surface pattern by visual analysis and comparison to known geometric values of the tooth model, and creating a tooth path program. Finally, the fabricating step involves using the tooth path program to direct a machine to mill a tooth mold and using the same program to direct a machine to finish-polish the mold.
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Dehoff Barry D.
Grim Carlton L.
Liu Andrew T. C.
McGraw Jeffrey E.
Dentsply Research & Development Corp.
Hanson, Jr. Edward J.
Loverdheck Dale R.
Picciano Dante James
Ruggiero Joseph
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