发明名称 Screwdriver-and-nut wrench-combined tuning tool for radio frequency filter
摘要 Provides is a screwdriver-and-nut wrench-combined tuning tool for radio frequency filter which is capable of preventing a movement of a tuning screw occurred when locking it with a tuning nut by making their combined body, preventing a difficulty of tuning resulted due to a separate use of a screwdriver and a nut wrench when a space for access to a tuning unit is not sufficient, and minimizing an interruption of turns of the tuning screw and the tuning nut by locking or turning the screwdriver and the nut wrench independently. The screwdriver-and-nut wrench-combined tuning tool for radio frequency filter comprises a case, a nut wrench positioned to rotate inside the case for turning or holding a tuning nut, a screwdriver positioned to rotate inside the nut wrench for turning or holding a tuning screw, a nut wrench locking unit that is fitted to the nut wrench or the case for locking the nut wrench; and a screwdriver locking unitthat is fitted to the case for locking the screwdriver.
申请公布号 US7216566(B2) 申请公布日期 2007.05.15
申请号 US20060452157 申请日期 2006.06.12
申请人 ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE 发明人 KWAK CHANG-SOO;UHM MAN-SEOK;YOM IN-BOK;LEE JU-SEOP;YUN SO-HYEUN
分类号 B25B13/00 主分类号 B25B13/00
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