Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Tripping means
Patent
1991-02-06
1992-12-22
Donovan, Lincoln
Electricity: magnetically operated switches, magnets, and electr
Electromagnetically actuated switches
Tripping means
335 21, 335176, H01H 900
Patent
active
051736764
ABSTRACT:
An electric switch in which a manually-operable dolly is angularly displaceable about a first axis through a top dead center (TDC) position between the extreme positions towards which it is urged by spring means after passing the TDC position to produce a toggle or snap-action effect, the dolly in one extreme position causing or allowing a movable contact to engage another contact and in the other extreme position causing or allowing the movable contact to disengage the other contact. A tail member is mounted for angular displacement about said first axis and the movable contact is carried on an arm mounted on the tail member intermediate its length for pivotal movement about a second axis parallel to the first axis. The arm is engaged by the tail member on the side remote from the movable contact to prevent the arm pivoting about said second axis, and the spring means is operable between the dolly and the arm angularly to displace the tail member about the first axis and by its engagement with the arm displace the arm about the first axis to bring the movable contact into or out of engagement with the other contact.
REFERENCES:
patent: 2360682 (1944-10-01), Hutt
patent: 3943316 (1976-03-01), Oster
patent: 3943472 (1976-03-01), Oster et al.
patent: 3944953 (1976-03-01), Oster
patent: 3946346 (1976-03-01), Oster et al.
patent: 3956723 (1976-05-01), Dickens et al.
patent: 4070641 (1978-01-01), Khalid
patent: 4178618 (1979-12-01), Khalid
patent: 4346356 (1982-08-01), Fujiwara et al.
Latham Frank
Mullins Malcolm H.
Donovan Lincoln
M.K. Electric Limited
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