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EP0160463A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Valve element for use in an ink-jet printer head

Assignee: NEC Corp
•
Filing: 1985-04-18
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Granted: —
•
Expires: 2005-04-18
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Abstract

Abstract A micro-mechanical valve element has a valve member formed by a plate member (11), and a tongue (12). A fine slit (13) separates the tongue (12) from said plate member (11) at three sides so that tongue (12) is movable. The valve element also includes a valve seat formed by a flat plate portion (21), with an opening (22) and stop members (23). The stop members (23) project into the opening (22) and face the tongue (12) of the valve member, the valve element is formed by a process of laying layers of metal on a substrate (31) of glass, forming resist pattern on selected ones of the metal layers, and subsequently removing the substrate, unwanted portions of the metal layers, and the resist patterns by etching methods.

Inventors

  • 👤 Tsutomu Itano
  • 👤 Mitsuo Tsuzuki

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-30 11:05
CPC Classifications
F; F16; F16K; F16K99/00; F16K99/0001; B; B41; B41J; B41J2/00; B41J2/005; B41J2/01; B41J2/17; B41J2/175; B41J2/17596; F15; F15C; F15C5/00; F16K15/00; F16K15/14; F16K15/16; F16K99/0003; F16K99/0005; F16K99/0007; F16K99/0034; F16K99/0055; F16K99/0057; F16K2099/0073; F16K2099/0074; F16K2099/0082; F16K2099/0092; F16K2200/00; F16K2200/40; F16K2200/401; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7847; Y10T137/7848; Y10T137/7879; Y10T137/788; Y10T137/7881; Y10T137/7888; Y10T137/7891

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 91 words
A valve element for use in an ink-jet printer head comprising: a valve member having a plate member (11), a tongue portion (12) and a fine slit (13), said tongue portion (12) being separated from said plate member (11) by said fine slit (13), said tongue portion (12) being movable; and a valve seat having a flat plate portion (21), an opening (22) and a stop member (23), said stop member (23) projecting into said opening (22), and said stop member (23) facing said tongue portion (12) of said valve member.
Claim 2
Dependent Claim 91 words
A valve element for use in an ink-jet printer head comprising: a valve member having a plate member (11), a tongue portion (12) and a fine slit (13), said tongue portion (12) being separated from said plate member (11) by said fine slit (13), said tongue portion (12) being movable; and a valve seat having a flat plate portion (21), an opening (22) and a stop member (23), said stop member (23) projecting into said opening (22), and said stop member (23) facing said tongue portion (12) of said valve member.
Claim 3
Dependent Claim 50 words
A valve element according to claim 1, characterised in that it is formed by a process of laying layers of metal on a substrate (31), forming resist patterns on selected ones of said layers, and removing the substrate, unwanted portions of said layers and said resist patterns by successive treatments.

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