Fluid dispenser

Patent metadata

Field	Value
Publication number	US-2017190177-A1
Application number	US-201715465563-A
Country	US
Kind code	A1
Filing date	Mar 21, 2017
Priority date	Dec 21, 2011
Publication date	Jul 6, 2017
Grant date	—

Abstract

A fluid dispenser may include an array of fluid delivery assemblies, Each fluid delivery assembly may include orifices through which fluid is to be ejected and slots. Each slot extends to a respective one of the orifices. The slots have different geometric shapes.

First claim

What is claimed is:

1 . A fluid dispenser comprising:
an array of fluid delivery assemblies, each fluid delivery assembly comprising:
orifices through which fluid is to be ejected;
slots, each slot extending to a respective one of the orifices, wherein the slots have different geometric shapes.

2 . The fluid dispenser of claim 1 , wherein the orifices are aligned in a plane and wherein the slots comprise a slot having a sidewall perpendicular to the plane and a second opposite side wall oblique to the plane.

3 . The fluid dispenser of claim 1 , wherein the orifices are aligned in a plane and wherein the slots comprise a slot having a first side wall extending at an oblique angle relative to the plane and a second opposite side wall extending at the oblique angle relative to the plane.

4 . The fluid dispenser of claim 1 , wherein the orifices are aligned in a plane and wherein slots comprise a slot having a first side wall extending oblique to the plane and a second opposite side wall having a first portion at a first oblique angle relative to the plane and a second portion at a second oblique angle relative to the plane, the second oblique angle being different than the first oblique angle.

5 . The fluid dispenser of claim 1 , wherein the orifices are aligned in a plane and wherein the slots comprise a slot having opposite side walls that mirror one another and that have multiple portions extending at different angles oblique to the plane.

6 . The fluid dispenser of claim 1 , wherein the slots comprise a slot fluidly connected to each of a pair of fluid chambers and respective fluid actuators on opposite sides of the slot.

7 . The fluid dispenser of claim 1 , wherein the orifices are aligned in a plane, the fluid dispenser further comprising at least one manifold, the at least one manifold comprising slanted fluid passageways, each fluid passageway connected to a respective slot and having at least one side wall oblique to the plane.

8 . The fluid dispenser of claim 7 , wherein each of the fluid passageways has a first width proximate the orifices and a second width, greater than the first width, distant the orifices.

9 . The fluid dispenser of claim 7 , wherein the at least one manifold comprises an array of manifolds, each manifold forming a portion of a respective one of the fluid delivery assemblies.

10 . The fluid dispenser of claim 9 , wherein each fluid delivery assembly comprises a substrate through which the slots extend, wherein the manifold is bonded to the substrate.

11 . The fluid dispenser of claim 1 , wherein the array of fluid delivery assemblies are to collectively span a full width of print media.

12 . The fluid dispenser of claim 1 , wherein each fluid delivery assembly further comprises:
a substrate having a first side and a second opposite side, wherein the slots extend from the first side to the second side; a thin film coupled to the substrate; a member coupled to the thin film, the member forming fluidic chambers; and actuators formed on and supported by the thin film within the fluidic chambers.

13 . The fluid dispenser of claim 1 , wherein the slots comprise:
a first slot connected to a first source of a first fluid; and a second slot connected to a second source of a second fluid different than the first fluid.

14 . The fluid dispenser of claim 1 , wherein the orifices are aligned in a plane and wherein the slots comprise:
a first slot having a sidewall perpendicular to the plane and a second opposite side wall oblique to the plane; a second slot having a first side wall extending at a first oblique angle relative to the plane and a second opposite side wall extending at the first oblique angle relative to the plane; a third slot having a first side wall extending oblique to the plane and a second opposite side wall having a first portion at a second oblique angle relative to the plane and a second portion at a third oblique angle relative to the plane, the third oblique angle being different than the first oblique angle; and a fourth slot having opposite side walls that mirror one another and that have multiple portions extending at different angles oblique to the plane.

15 . A fluid delivery assembly comprising:
a member through which slots extend to fluidic chambers, each of the slots having a different geometric shape; a thin film formed on supported by the member opposite the fluidic chambers; actuators formed on the thin film within the fluidic chambers; and orifices through which fluid may be ejected from the fluidic chambers.

16 . The fluid delivery assembly of claim 15 further comprising a manifold coupled to the member, the manifold comprising fluid passageways slanted in a single direction, each of the fluid passageways connected to a respective one of the slots.

17 . The fluid delivery system of claim 16 , where the manifold is bonded to the member.

18 . The fluid delivery system of claim 16 , wherein each of the fluid passageways has a first width proximate the member and a second width, greater than the first width, distant the member.

19 . The fluid delivery system of claim 15 , wherein the orifices are aligned in a plane and wherein the slots comprise at least two slots selected from a group of slots consisting of:
a first slot having a sidewall perpendicular to the plane and a second opposite side wall oblique to the plane;
a second slot having a first side wall extending at a first oblique angle relative to the plane and a second opposite side wall extending at the first oblique angle relative to the plane;
a third slot having a first side wall extending oblique to the plane and a second opposite side wall having a first portion at a second oblique angle relative to the plane and a second portion at a third oblique angle relative to the plane, the third oblique angle being different than the first oblique angle; and
a fourth slot having opposite side walls that mirror one another and that have multiple portions extending at different angles oblique to the plane.

20 . A fluid dispenser comprising:
a bar, an array of staggered fluid delivery assemblies supported by the bar, the array to collectively span a full width of print media, each of the fluid delivery assemblies comprising: a member through which slots extend to fluidic chambers, each of the slots having a different geometric shape; a thin film formed on supported by the member opposite the fluidic chambers; actuators formed on the thin film within the fluidic chambers; orifices through which fluid may be ejected from the fluidic chambers; and a manifold bonded to the member, the manifold comprising fluid passageways slanted in a single direction, each of the fluid passageways connected to a respective one of the slots.

Assignees

• Hewlett Packard Development Co Lp

Inventors

• Choy Silam J
• Clark Garrett E
• Rivas Rio
• Friesen Ed
• Ronk Kelly

Classifications

• B05B15/50

  Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter · CPC title

• B05B7/1686

  involving vaporisation of the material to be sprayed or of an atomising-fluid-generating product · CPC title

• B05B1/14 Primary

  with multiple outlet openings (B05B1/02, B05B1/26 take precedence); with strainers in or outside the outlet opening · CPC title

• B05B17/0646

  Vibrating plates, i.e. plates being directly subjected to the vibrations, e.g. having a piezoelectric transducer attached thereto · CPC title

• B41J2/1433 Primary

  Structure of nozzle plates · CPC title