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:
Jul. 06, 1976
Filed:
Sep. 05, 1975
Michele Bovio, Banchette, IT;
Ing. C. Olivetti & C., S.p.A., Ivrea (Turin), IT;
Abstract
An electronic keyboard comprises a plurality of depressable keys each one of which comprises a stem normally movable and connected through a spring to a metallic actuator. Each actuator is lodged in a supporting element jutting out from the stem and cooperates with a permanent magnet which retains it in a rest position. Upon the depression of a key, the corresponding spring is loaded and after a predetermined displacement of the key a shoulder of the supporting element cooperates directly with the corresponding actuator disengaging it from the permanent magnet. The actuator is then pushed by the action of the spring to a movable contact of an electronic switch which generates an electrical signal.