Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Retarded or delayed type
Patent
1988-01-14
1989-02-07
Hix, L. T.
Electricity: magnetically operated switches, magnets, and electr
Electromagnetically actuated switches
Retarded or delayed type
3542711, 354448, 335276, G03B 300
Patent
active
048035068
ABSTRACT:
An electromagnetic control device for a camera or the like is provided with a magnet core having an attracting face and with an armature pivotally connected to a control member for movement about a pivot axis to allow tilting of an attracted face of the armature into intimate face contact with the attracting face of the magnet core. The control member is pivotally mounted for movement about a pivot axis, to swing the armature to urge its attracted face against the attracting face of the magnet core, until the attracted face is tilted into intimate face contact with the attracting face. A degree of free play exists at the pivotal mounting of the control member to allow the control member to move about the pivot axis of the armature after the attracted face of the armature is tilted into face contact with the attracting face of the magnet core. Thus, the control member will be moved first about its pivot axis to effect face contact of the two faces and then about the pivot axis of the armature to permit overtravel of the control member to a particular position.
REFERENCES:
patent: 3435745 (1969-04-01), Fukushima
patent: 3724351 (1973-04-01), Matsumoto
patent: 3762297 (1973-10-01), Kitai
patent: 4137514 (1979-01-01), Wright et al.
patent: 4342018 (1982-07-01), Numata et al.
patent: 4360258 (1982-11-01), Hashimoto
patent: 4378150 (1983-03-01), Hasmimoto et al.
patent: 4728979 (1988-03-01), Akitake et al.
Diehl Conrad
DiRisio Anthony
Eastman Kodak Company
Fields Roger A.
Gray David M.
Hix L. T,.
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