Liquid ejection head and liquid ejection apparatus
US-2024375397-A1 · Nov 14, 2024 · US
System and method for creating a pico-fluidic inkjet
US9944074B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9944074-B2 |
| Application number | US-50525806-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 15, 2006 |
| Priority date | Aug 15, 2006 |
| Publication date | Apr 17, 2018 |
| Grant date | Apr 17, 2018 |
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- Title
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Abstract
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An inkjet material dispenser system includes a printhead member. According to one exemplary embodiment, the printhead member includes at least one drop ejector including an insulating stack layer and a top orifice surface defining an orifice, wherein a ratio of a diameter of the orifice to a height of the insulating stack layer (O/L ratio) is at least 1.0.
First claim
Opening claim text (preview).
What is claimed is: 1. An inkjet material dispenser, comprising: a printhead member comprising at least one drop ejector, wherein said drop ejector comprises a chamber layer defining a chamber for receiving a fluid for ejection, an orifice layer defining an orifice for ejecting a drop of the fluid, and a mechanism for ejecting a single drop of the fluid from the chamber through the orifice; and wherein a ratio of orifice diameter to a sum of chamber thickness and orifice thickness (O/L ratio) is at least 1.0 and an orifice thickness is 20 to 40 micrometers. 2. The dispenser of claim 1 , wherein the ejecting mechanism comprises a thermal resistor. 3. The dispenser of claim 2 , wherein a ratio of a length of said ejecting member to orifice diameter (R/O ratio) is at least 1.4. 4. The dispenser of claim 1 , wherein the ejecting member comprises a mechanical member configured to expand normally outward from the plane in which the ejecting member is situated.
Assignees
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Classifications
- B41J2/1404Primary
Geometrical characteristics · CPC title
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sacrificial molding · CPC title
Structure thereof {only for on-demand ink jet heads} · CPC title
Structure of print heads with piezoelectric elements · CPC title
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Frequently asked questions
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- What does patent US9944074B2 cover?
- An inkjet material dispenser system includes a printhead member. According to one exemplary embodiment, the printhead member includes at least one drop ejector including an insulating stack layer and a top orifice surface defining an orifice, wherein a ratio of a diameter of the orifice to a height of the insulating stack layer (O/L ratio) is at least 1.0.
- Who is the assignee on this patent?
- Nielsen Jeffrey A, Olbrich Craig A, Seaver Richard W, and 2 more
- What technology area does this patent fall under?
- Primary CPC classification B41J2/1404. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Apr 17 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).