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92. 发明授权

US3669075A Automatic egg turner for incubator 失效
标题翻译：自动灭火器
公开(公告)号：US3669075A
公开(公告)日：1972-06-13
申请号：US3669075D
申请日：1970-12-17
申请人： MARSH ALBERT F
发明人： MARSH ALBERT F
IPC分类号： A01K41/06
CPC分类号： A01K41/06
摘要： An incubator egg turner having a drive motor which drives an output shaft having a cam thereon which moves a first single pole double throw switch between a first position when the cam is in one 180* portion of its rotation and a second position when the cam is in the other 180* of rotation, a timer motor which drives a cam which moves a second switch to alternately connect said drive motor to electrical power through said first switch to rotate said output shaft 180* at a time, and there being provided on said output shaft a crank arm which is connected to the egg grid of an incubator to move said grid from one position to another each time the output shaft is rotated 180*, and including a test circuit which can selectively connect electrical power to the drive motor no matter what is the position of said first mentioned cam, and anchor rods rigidly connected to the turner by which the turner can be removably anchored to the incubator.

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