发明名称 Leak resistant poultry watering device
摘要 A chicken watering device solves the problem of leakage while still allowing easy actuation of the trigger by a bird by utilizing a coil spring having a spring coefficient of one to two pounds per inch of displacement and prevents jamming of the device by feed, cage waste and the like through use of a conical portion positioned along the inlet conduit and surrounding the trigger.
申请公布号 US4539938(A) 申请公布日期 1985.09.10
申请号 US19830565480 申请日期 1983.12.27
申请人 MARANELL, M. C.;KORTLEVER, LEROY A. 发明人 MARANELL, M. C.;KORTLEVER, LEROY A.
分类号 A01K39/02;(IPC1-7):A01K7/02 主分类号 A01K39/02
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