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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0902157 (1986-08-29) |
발명자 / 주소 |
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인용정보 | 피인용 횟수 : 21 인용 특허 : 0 |
A motorized positioner comprising a compact arrangement of two-stage sun and planetary gear sets. The first stage planetary gears are reacted by an internal ring gear of an upper housing. The second stage planetary gears are reacted by an internal ring gear of both upper and lower housings, thereby
A motorized positioning apparatus comprising: a housing having a first and second portion forming an internal cavity, said first and second housing portions each having integral internal toothed ring gears and adapted to rotate relative to each other through 360 degrees, said housing having a single
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