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Application filed by Chum Power Machinery CorpfiledCriticalChum Power Machinery Corp
Priority to TW94113222ApriorityCriticalpatent/TWI271258B/en
Publication of TW200637687ApublicationCriticalpatent/TW200637687A/en
Application grantedgrantedCritical
Publication of TWI271258BpublicationCriticalpatent/TWI271258B/en
This invention is a modified structure of jaw chuck in main shaft. It comprises: a jaw base having an annular seat in which a receiving cavity is accommodated; at least one spacer which is placed in front of jaw base; an elastic ring which is an elastic body and secures around the receiving cavity; a set of jaws which has plural jaws and is set around the jaw base between two spacers in equal distance from each other. The rear ends of jaws are secured in the inner rim of the elastic ring to keep the jaws elastic opening.
TW94113222A2005-04-262005-04-26Modified structure of jaw chuck in main shaft
TWI271258B
(en)
Escherichia strain capable of converting XMP to GMP and maintaining the inactivated state of gene(s) associated with GMP degradation and methods of using the same