Patent · US Expired

Holder for a ribbon for typewriters or similar machines

US4955737A · kind A · utility

7Cited by
10References
2Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 6, 1988
Grant dateSep 11, 1990
Priority date
Expiry dateDec 6, 2008

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB41J35/28
  • WIPO fieldTextile and paper machines
  • WIPO sectorMechanical engineering

Abstract

A holder for a ribbon for typewriters or similar machines where the holder is insertable into a receptacle. The holder must assume a firm and above all functionally correct connection with the receptacle. For this purpose two sliders with hook-shaped ends are disposed on pivotable side elements of the receptacle. These hooks embrace in their locking position edges provided on the ribbon guide arms. Only when the hooks are in their closed position can the combined device be inserted into the typewriter or the printer. The operationally correct insertion of the combined device would be prevented by a side element which is not closed or a protruding slider with its hook.

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