Electricity: electrothermally or thermally actuated switches – Electrothermally actuated switches – With bimetallic elements
Patent
1988-11-03
1989-09-19
Broome, H.
Electricity: electrothermally or thermally actuated switches
Electrothermally actuated switches
With bimetallic elements
337 66, 337 91, H01H 7116
Patent
active
048685356
ABSTRACT:
The invention relates to a contact breaker of the type that includes a slider (22, FIG. 1) that slides longitudinally within a housing to allow a moving contact 50 (FIG. 3) on a sudden actin bimetal strip (44) to pass through a slider opening (62) against a fixed contact (40), or to keep the contacts apart after they have briefly moved apart. The state of the contact breaker is indicated by a signalling electrical circuit which includes a moving contact (80, FIG. 1) mounted on the slider and having a pair of clips that connect coplanar signalling contacts (68, 70). The slider has a lower extension (92, FIG. 4) that prevents arcing between power contacts. The housing includes two half-casings (16, 18, FIG. 7) joined at a longitudinal joint 19, one carrying power terminals (32, 34) and the other carrying signalling terminals (74, 76). The slider keeps the contacts (50, 40, FIG. 3) separate even if the front housing surface is blocked.
REFERENCES:
patent: 3321597 (1967-05-01), Meijer
patent: 3361888 (1968-01-01), Brackett
patent: 4068203 (1978-01-01), Unger
Janniere Alain
Teisseire Jean-Pierre
Broome H.
IT&T Industries, Inc.
Peterson Thomas L.
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