Phillip Phung-I Ho,Chieh-Yu Cheng,Chu-Chen Wang,Chung-Chieh Lee
申请号：
US14808836
公开号：
US09981233B2
申请日:
2015.07.24
申请国别(地区):
US
年份:
2018
代理人:
摘要：
A portable mixer for medication and/or dental impression material includes a gear assembly and an upper lid. The gear assembly comprises a helical gear with a bidirectional bearing, a clutch shell with a unidirectional bearing meshing with the helical gear, a spring positioned between the helical gear and the clutch shell, two pinions respectively positioned beside the clutch shell and the helical gear, and a shifting shaft mounted transversely through each of the two pinions, the helical gear, the bidirectional bearing, the spring, the unidirectional bearing, and the clutch shell. The upper lid comprises a fastener and a switch cover co-acted with the fastener and detachably contacting the helical gear and the clutch shell.
