Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Multiple contact type
Patent
1990-06-14
1991-09-17
Broome, Harold
Electricity: magnetically operated switches, magnets, and electr
Electromagnetically actuated switches
Multiple contact type
200240, 335128, H01H 5026, H01H 116
Patent
active
050498452
ABSTRACT:
A contact device is provided with an additional mass member secured to a movable contactor carrying a movable contact capable of opening and closing contacts with a stationary contact, for providing to the movable contactor a mass acting in a direction perpendicular to longitudinal axis of the contactor. A rolling motion is thereby caused to occur in the movable contactor upon contact closing motion so that the movable contact can be prevented from being fusion-bonded to the stationary contact.
REFERENCES:
patent: 4272746 (1981-06-01), Wright et al.
patent: 4634819 (1987-01-01), Ikeda
patent: 4650935 (1987-03-01), Ootsuka et al.
patent: 4937544 (1990-06-01), Mueller
Hamaguchi Hiroaki
Hongyou Takatoshi
Kitamura Nobuhiro
Kondo Hideya
Yokoyama Yoichi
Broome Harold
Matsushita Electric & Works Ltd.
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