Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Multiple contact type
Patent
1988-12-12
1990-06-26
Picard, Leo P.
Electricity: magnetically operated switches, magnets, and electr
Electromagnetically actuated switches
Multiple contact type
335133, 335 83, H01H 6702
Patent
active
049375440
ABSTRACT:
A contact arrangement has a contact spring which is prestressed against a seating edge of an actuation element by a prestress bend. The pre-stress bend lies at an angle of between 0 through 30 degrees relative to the seating edge so that roll-off is produced at the contact location. Such contact arrangement is especially advantageous for switching high-current loads since roll-off at the contact location reduces the welding tendency and makes an easier break-open of the contact when the contact is opening if there is a slight welding of the contacts.
REFERENCES:
patent: 4267540 (1981-05-01), Iketani
patent: 4340876 (1982-07-01), Dammert et al.
patent: 4509028 (1989-04-01), Muler
patent: 4540963 (1985-09-01), Esterl et al.
Donovan Lincoln
Picard Leo P.
Siemens Aktiengesellschaft
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