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公开(公告)号:US2161649A
公开(公告)日:1939-06-06
申请号:US17119037
申请日:1937-10-27
申请人: IBM
发明人: WILSON JOSEPH T
IPC分类号: G06K21/02
CPC分类号: G06K21/02
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公开(公告)号:US3585927A
公开(公告)日:1971-06-22
申请号:US3585927D
申请日:1969-12-22
申请人: IBM
发明人: BURNS ROBERT C , DREJZA JOHN E , MANNING DONALD F , STARK RICHARD L , STILES DONALD J , WALLACE JOSEPH E , WILSON JOSEPH T
CPC分类号: B41J9/38
摘要: In a high performance print magnet, magnet yokes are independently resiliently mounted on a common support, the yoke is tapered at the pole face to concentrate the flux attracting the armature, and the push rod used to actuate a pivoted print hammer is spring biased to hold the magnet armature against a back stop and prevent the push rod from following the print hammer after the magnet armature seals.
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公开(公告)号:US2195845A
公开(公告)日:1940-04-02
申请号:US15186137
申请日:1937-07-03
申请人: IBM
发明人: WILSON JOSEPH T
IPC分类号: G06K21/02
CPC分类号: G06K21/02
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