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:
May. 17, 1983
Filed:
May. 05, 1981
Jorge Costa, Yverdon, CH;
Hermes Precisa International S.A., Yverdon, CH;
Abstract
In the typewriter driving of the platen (1) is effected by the motor shaft (3) which operates a character selection device. This motor shaft (3) and the platen (1) occupy predetermined angular positions at rest. During a driving command of the platen, a part (26) brings a transmission pinion (22) into mesh with the last controlled pinion (9) of a gear train (5 to 9) coupled to the motor shaft (3) before this shaft is actuated by the motor (4). The transmission pinion (22) is secured to one end of the transmission shaft (16, 19, 20) and the other end of the shaft carries a toothed wheel (15) in mesh with a driving pinion (14) secured to the platen. The angular notching of the pinions and their number of teeth is provided in such a manner that the teeth of the pinion (22) engage exactly between the teeth of the controlled pinion (9).