The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 25, 1994
Filed:
Jun. 01, 1993
Industrie Magneti Marelli S.p.A., Milan, IT;
Abstract
The device comprises two fixed contacts, a movable assembly coupled to the central portion of a movable contact the free ends of which can cooperate with the said fixed contacts, and a control electromagnet comprising a solenoid and a movable core displaceable from an initial rest position to a final position in which it strikes a stop element carrying with it the movable assembly so as to bring the end of the movable contact against the fixed contacts before reaching the final position. The movable contact can flex resiliently like a beam under the effect of its engagement with the fixed contacts. When the core strikes the stop element, the fixed contacts oscillate about their normal working positions. The movable contact is made in such a way that, as the fixed contacts start to oscillate its free ends follow the movements of the fixed contacts, its acceleration in its own mode of vibration being greater than the acceleration of the fixed contacts and its amplitude of oscillation being greater than the amplitude of oscillation of the fixed contacts.