Electricity: circuit makers and breakers – Multiple circuit control – Pivoted contact
Patent
1985-10-03
1987-03-03
Pellinen, A. D.
Electricity: circuit makers and breakers
Multiple circuit control
Pivoted contact
200 15, H01H 1910
Patent
active
046477306
ABSTRACT:
For each phase to be switched, there is provided at least one pair of fixed contacts consisting of an upper fixed contact and a lower fixed contact as well as one rotary or movable contact. The rotary contact is rotatable about an axis of rotation and is in constant engagement with one of the fixed contacts. The rotary or movable contact is supported on a support made of insulating material. The support is also rotatable. To reduce the torsion moment or torque required for turning the rotary contact to a minimum, the rotatable support possesses, in the vicinity of the rotary or movable contacts, a cranked or bent section in the form of a crank shaft in which an open-ended recess or aperture is provided for each contact. There recesses or apertures carry the rotary or movable contact. Each rotary or movable contact projects at both ends beyond the associated recess or aperture and the axis of rotation passes through one end section of the rotary or movable contacts as well as the end section of one of the fixed contacts.
REFERENCES:
patent: 3202775 (1965-08-01), Tillson
patent: 4467161 (1984-08-01), Fox et al.
Schutz Willi
Valle Robert
Ginsburg Morris
Kleeman Werner W.
Pellinen A. D.
Sprecher & Schuh AG
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