Patent · US Expired

Print and correction ribbon drive system

US4609297A · kind A · utility

6Cited by

3References

2Claims

0Family size

Assignee

Triumph-Adler A.G. · DE

Inventors

Manfred Hubner · Ludwigshafen am Rhein, DE
Wilfried Rettke · Edenkoben, DE

Key dates

Filing date	Nov 2, 1984
Grant date	Sep 2, 1986
Priority date	—
Expiry date	Nov 2, 2004

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB41J35/22
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

A drive system to raise and transport both print and correction ribbons on typewriters or like machines is powered by a single bidirectional stepping motor. In one direction of rotation the motor acts via a special action clutch to first drive mechanisms for raising a print ribbon and then to establish gear connections for driving mechanisms for transporting the print ribbon. In the other direction, the motor acts to establish gear connections for driving mechanisms for raising and transporting a correction ribbon.

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