Nozzle plate for a liquid jet print head

• US 5,588,597 A
• Filed: 08/30/1994
• Issued: 12/31/1996
• Est. Priority Date: 09/03/1993
• Status: Expired due to Fees

• Current Assignee: Microparts GmbH
• Original Assignee: Microparts GmbH
• Inventors: Reinecke, Holger, Bartels, Frank, Peters, Ralf-Peter, Unal, Nezih, Noker, Friedolin F.
• Primary Examiner(s): Morris, Lesley D.
• Application Number:
  US08/297,780
• Time in Patent Office: 854 Days
• Field of Search: 347/47, 239/553, 239/553.3, 239/553.5, 239/536
• US Class Current: 239/553.5
• CPC Class Codes: B41J 2/1404 Geometrical characteristics
• CPC Class Codes: B41J 2/1433 Structure of nozzle plates
• CPC Class Codes: B41J 2/1603 of the front shooter type
• CPC Class Codes: B41J 2/162 Manufacturing of the nozzle plates
• CPC Class Codes: B41J 2/1623 bonding and adhesion
• CPC Class Codes: B41J 2/1625 electroforming
• CPC Class Codes: B41J 2/1626 etching
• CPC Class Codes: B41J 2/1631 photolithography
• CPC Class Codes: B41J 2/1634 laser machining
• CPC Class Codes: B41J 2/1637 molding
• CPC Class Codes: B41J 2002/14387 Front shooter
• CPC Class Codes: B41J 2002/14403 including a filter
• CPC Class Codes: Y10S 29/005 Method or apparatus with casting
• CPC Class Codes: Y10T 29/49401 Fluid pattern dispersing device making, e.g., ink jet
• CPC Class Codes: Y10T 29/49984 and casting
• CPC Class Codes: Y10T 29/49988 Metal casting

Abstract

A nozzle plate contains nozzles, liquid chambers and connection channels between liquid chambers and supply containers for the liquid. All the function regions are produced integrally as a microstructure body by casting from one or more microstructured mold inserts. The smallest implementable spacing of the nozzles from one another can be considerably smaller than in the previously known plates, which allows increased printing density.

Claims

1. A nozzle comprising:

a cast plate structure; and

functional regions in said plate structure, said functional regions including at least one nozzle, at least one liquid chamber, at least one supply container and connection channels connecting said at least one nozzle, said at least one liquid chamber and said at least one supply container, wherein said plate structure has at least one nozzle on opposite sides thereof, including further plates assembled to said opposite sides and having heating elements and electrical connections for said nozzles.