IP Library Granted Patent US 9,415,594
Granted Patent B1
US 9,415,594 · App. 14/814,024 · Granted Aug 16, 2016

Single jet having a bubble screen

Inventor: Terrance L. Stephens (Canby, OR)
Assignee: XEROX CORPORATION
B41J2/14274B41J2/14233B41J2202/07
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Quick Facts
Patent No.
US 9,415,594
App. No.
14/814,024
Granted
Aug 16, 2016
Kind
B1
Abstract

A jet stack includes a set of plates forming an array of body chambers, the set of plates including a nozzle plate having an array of jets wherein each jet corresponds to a body chamber, each body chamber having a body chamber port that allows fluid to flow into and out of the body chamber, and a bubble screen between the body chamber port and a remainder of the jet.

Claims (15)

1. A jet stack, comprising:

a set of plates forming an array of body chambers, the set of plates including a nozzle plate having an array of jets wherein each jet corresponds to a body chamber;

each body chamber having a body chamber port that allows fluid to flow into and out of the body chamber;

an inlet channel connected to body chamber port to allow fluid to reach the body chamber port;

an inlet port connected to the inlet channel to allow fluid to enter the inlet channel; and

a bubble screen between the body chamber port and a remainder of the jet.

2. The jet stack of claim 1 , wherein the fluid comprises ink.

3. The set of plates of claim 1 , wherein the jet stack forms a flow path in which bubbles trapped by the bubble screen are in the flow path.

4. The jet stack of claim 1 , wherein the flow path comprises a path from the inlet port through the inlet channel and an outlet to an output nozzle.

5. The jet stack of claim 1 , wherein the set of plates includes a diaphragm plate, a body chamber plate, a body chamber port plate, an inlet channel plate, a bubble screen plate, an outlet plate and nozzle plate.

6. The jet stack of claim 1 , wherein the bubble screen includes an array of holes.

7. The jet stack of claim 6 , wherein a diameter of each hole has a size selected to generate a meniscus force greater than a buoyance force of a bubble.

8. The jet stack of claim 6 , wherein the array of holes have a relationship, M, between a number of holes, N, a length of each hole, L, and a diameter of each hole, D, defined by M=(L)/(N*(D) 2 ).

9. The jet stack of claim 6 , wherein each hole has a diameter less than 18 micrometers.

10. The jet stack of claim 6 , wherein each hole has a diameter less than 50 micrometers.

Assignments (7)
TERMINATION AND RELEASE OF SECURITY INTEREST IN PATENTS RECORDED AT RF 064760/0389 Recorded Feb 13, 2024
From: CITIBANK, N.A., AS COLLATERAL AGENT
To: XEROX CORPORATION
Reel/Frame 068261/0001 →
SECURITY INTEREST Recorded Feb 13, 2024
From: XEROX CORPORATION
To: CITIBANK, N.A., AS COLLATERAL AGENT
Reel/Frame 066741/0001 →
SECURITY INTEREST Recorded Nov 20, 2023
From: XEROX CORPORATION
To: JEFFERIES FINANCE LLC, AS COLLATERAL AGENT
Reel/Frame 065628/0019 →
SECURITY INTEREST Recorded Jun 22, 2023
From: XEROX CORPORATION
To: CITIBANK, N.A., AS COLLATERAL AGENT
Reel/Frame 064760/0389 →
RELEASE OF SECURITY INTEREST IN PATENTS AT R/F 062740/0214 Recorded May 18, 2023
From: CITIBANK, N.A., AS AGENT
To: XEROX CORPORATION
Reel/Frame 063694/0122 →
SECURITY INTEREST Recorded Nov 10, 2022
From: XEROX CORPORATION
To: CITIBANK, N.A., AS AGENT
Reel/Frame 062740/0214 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 31, 2015
From: STEPHENS, TERRANCE L.
To: XEROX CORPORATION
Reel/Frame 036225/0991 →