发明名称 Apparatus for inserting and extracting light bulbs
摘要 The invention relates to a device for positioning or extracting light bulbs from hard-to-reach places. The device has an extendable handle, and support attached to the handle and the main housing mounted on the support for a limited rotational movement about longitudinal axis of the support. A pair of independently activated electrical motors positioned within the housing operate the device. The first motor transmits a longitudinal movement to a piston having a suction cup for gripping a light bulb, and a second motor transmits rotational movement to the gripped bulb.
申请公布号 US4901606(A) 申请公布日期 1990.02.20
申请号 US19880208722 申请日期 1988.06.20
申请人 CHRISTENSEN, MARC F. 发明人 CHRISTENSEN, MARC F.
分类号 B25B11/00;B25B21/00;H01J9/00 主分类号 B25B11/00
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