Electricity: electrical systems and devices – Control circuits for electromagnetic devices – Systems for magnetizing – demagnetizing – or controlling the...
Patent
1992-07-27
1995-03-28
Pellinen, A. D.
Electricity: electrical systems and devices
Control circuits for electromagnetic devices
Systems for magnetizing, demagnetizing, or controlling the...
335284, 335 18, 335177, 335255, H01F 706, H01F 720
Patent
active
054023009
ABSTRACT:
A magnet is fixed to the inner surface of the ceiling of a cylinder-like yoke which is closed at the top, and a holding plate is attached to the yoke through a slider. A coil and collet are unitedly attached to the holding plate. When a current is passed through the coil, a force proportional to the current acts on the coil so that a constant load is applied to the collet.
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patent: 4797994 (1989-01-01), Michaud et al.
patent: 4910633 (1990-03-01), Quinn
patent: 5079534 (1992-01-01), Steingroever et al.
patent: 5173673 (1992-12-01), Weigand et al.
patent: 5234530 (1993-08-01), Freeman, III
Krishnan Adity A.
Pellinen A. D.
Rohm & Co., Ltd.
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