Magnet switch for starter

Details Magnet switch for starter Magnet switch for starter

1995-02-08

1996-10-29

Scott, J. R.

Electricity: circuit makers and breakers

Periodic

Contact breaker detail

439816, H01H 138, H01R 448

Patent

active

055698921

ABSTRACT:
A magnet switch which can prevent formation of dew between a movable contact and a fixed contact under the low temperature condition. A cover is made of an insulating material having a base, and the fixed contact is supported in the cover. The fixed contact is connected with the tip portion of an external power feed wire covered with a coating sheath or outer layer of insulation. The tip is embedded in the cover together with the coating sheath or outer layer of insulation, thus eliminating an external power feed terminal with a large surface area that is exposed to the atmosphere. The fixed contact is not cooled even under low temperature condition, and dew condensation between the fixed contact and movable contact can be securely prevented.

REFERENCES:
patent: 2170961 (1939-08-01), Borgkvist
patent: 3242283 (1966-03-01), Clements
patent: 3571770 (1971-03-01), Dew
patent: 3604876 (1971-09-01), Pasbrig
patent: 3638171 (1972-01-01), Huibrechtse
patent: 4130331 (1978-12-01), Neff et al.
patent: 4175822 (1979-11-01), Debaigt
patent: 4701000 (1987-10-01), Suprono
patent: 4776812 (1988-10-01), Boissonnet et al.
patent: 5427550 (1995-06-01), Jaag
patent: 5428330 (1995-07-01), Tamemoto

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