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:
Dec. 16, 1986
Filed:
Oct. 15, 1984
Francesco Bernardis, Chiaverano, IT;
Carlo Motta, Borgofranco, IT;
Ing. C. Olivetti & C., S.p.A., Ivrea, IT;
Abstract
A matrix printing device includes a housing body which can effect a translational movement relative to a printing surface in use, a plurality of wires slidable in the housing body and each having one end for acting on the print surface as a result of a thrust exerted on the other end, and a plurality of oscillating operating members each of which can exert a thrust on a respective wire. Electromagnetic excitation circuits selectively oscillate each of the operating members from a rest position to a position of thrusting the respective wire. The operating members are fixed to a single resilient support element. The position of fixing of each operating member to the support element and the resilient properties of the support element determine, respectively, the path of oscillation of the operating member and the degree of resilient force which returns the member to the rest position.