Patent · US Expired

Daisy wheel typewriter

US4249829A · kind A · utility

3Cited by

4References

3Claims

0Family size

Assignee

Triumph-Adler A.G. · DE

Inventors

Manfred Link · Nuremberg, DE
Diethelm Puch · Nuremberg, DE

Key dates

Filing date	Apr 16, 1979
Grant date	Feb 10, 1981
Priority date	—
Expiry date	Apr 16, 1999

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB41J1/24
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

A daisy wheel typewriter wherein wheel positioning to present a character for printing and hammer actuation to effect printing of a selected character are electronically operated in response to keyboard generated signals. Functions associated with a printing action, e.g., ribbon lift, ribbon feed, and carriage spacing, are, however, operated mechanically in synchronism with the electronics by a timing disc driven by a print cycle function actuating shaft. Non-printing service functions are also operated mechanically by conventional powered mechanisms responsive to keyboard generated signals.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.