Electricity: magnetically operated switches – magnets – and electr – Magnets and electromagnets – Magnet structure or material
Patent
1996-07-01
1997-05-06
Tso, Edward
Electricity: magnetically operated switches, magnets, and electr
Magnets and electromagnets
Magnet structure or material
1013891, H01F 702, B41F 2702
Patent
active
056275056
ABSTRACT:
A magnetic cylinder for holding printing plates and the like having a drum of non-magnetic material with recesses on the drum surface containing a series of uninterrupted elongated permanent ceramic magnets extending substantially the length of the cylinder in an axial direction with pole pieces between adjacent magnets.
REFERENCES:
patent: 3610583 (1971-10-01), Ostrom et al.
patent: 3721189 (1973-03-01), Bray
patent: 3824926 (1974-07-01), Fukuyama
patent: 4114532 (1978-09-01), Arzoumanian
patent: 4625928 (1986-12-01), Peekna
patent: 4676161 (1987-06-01), Peekna
patent: 4852490 (1989-08-01), McEachern
patent: 5219050 (1993-06-01), Kubomiya
Berhane Adolf
T. D. Wright, Inc.
Tso Edward
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