# US 10,118,380 B2 · Sealing

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- Number: US 10,118,380 B2
- Document ID: US10118380B2
- Status: Granted
- Kind: B2
- Application number: 15/541,271
- Filed: 2015-01-29
- Published: 2017-12-07
- Granted: 2018-11-06
- Earliest claimed: 2015-01-29
- Assignees: HP Indigo B.V.
- Applicants: Hewlett-Packard Indigo B.V.
- Inventors: Alex Feygelman
- Web page: https://patentgrep.com/patent/US10118380B2

## CPC

- B41F 19/002: {with means for applying specific material other than ink}
- B41F 23/00: Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
- B41F 23/08: Print finishing devices, e.g. for glossing prints {(B41F23/005 takes precedence)}
- B41F 31/027: {Ink rail devices for inking ink rollers}
- B41F 31/20: Ink-removing or collecting devices
- B41J 11/0015: {for treating before, during or after printing or for uniform coating or laminating the copy material before or after printing (selective coating B41J2/2114)}
- G03G 15/0881: {Sealing of developer cartridges}
- G03G 15/6582: {Special processing for irreversibly adding or changing the sheet copy material characteristics or its appearance, e.g. stamping, annotation printing, punching}
- B05C 5/0266: {adjustable in length, e.g. for coating webs of different width}
- G03G 15/104: {Preparing, mixing, transporting or dispensing developer}
- G03G 15/1695: {with means for preconditioning the paper base before the transfer}
- B41F: PRINTING MACHINES OR PRESSES (manifolding devices or office printing machines B41L)
- B41J: TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- G03G: ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- B05C: APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL (spraying apparatus, atomising apparatus, nozzles B05B; plant for applying liquids or other fluent materials to objects by electrostatic spraying B05B5/08)

## Abstract

Certain examples of seals that can move along a slit are disclosed. The seals can comprise a first leaf, a second leaf, and a biasing member to push the first leaf away from the second leaf. Also, apparatus for applying a fluid, and printing systems are described.

## Claims

### Claim 1

A seal to move along a slit, comprising:
a first leaf;
a second leaf; and
a biasing member to push the first leaf away from the second leaf, and to push the second leaf away from the first leaf, and wherein the biasing member is a V-shaped shim arranged between the first leaf and the second leaf.

### Claim 2 (depends on 1)

The seal of claim 1, wherein the V-shaped shim is glued to the first leaf and the second leaf.

### Claim 3 (depends on 1)

The seal of claim 1, further comprising a shim stopper between the first leaf and the second leaf.

### Claim 4 (depends on 1)

The seal of claim 1, wherein the V-shaped shim is a folded V-shaped shim to push the first and second leafs away from one another.

### Claim 5 (depends on 4)

The seal of claim 4, wherein the folded V-shaped shim comprises:
a first member in contact with the first leaf,
a second member in contact with the second leaf,
wherein a space is provided between the first and second members.

### Claim 6 (depends on 5)

The seal of claim 5, wherein the first and second members are angled away from one another and are connected to one another by a connecting portion of the folded V-shaped shim.

### Claim 7 (depends on 4)

The seal of claim 4, wherein the folded V-shaped shim comprises polyamide.

### Claim 8

An apparatus for applying a fluid to a medium in a printing system, comprising:
a chamber to receive the fluid, the chamber comprising a housing, an aperture, and lateral seal assemblies, the aperture being defined between the lateral seal assemblies and having an upper edge and a lower edge,
wherein at least one of the lateral seal assemblies is moveable along an axis of the chamber toward one another or away from one another to adjust a width of the aperture, and
wherein the movable lateral seal assembly comprises an aperture seal arranged to move along the aperture, the aperture seal comprising an upper leaf and a lower leaf, wherein the upper leaf is pushed into contact with the upper edge and the lower leaf is pushed into contact with the lower edge.

### Claim 9 (depends on 8)

The apparatus of claim 8, wherein the chamber has a cross-section, wherein the cross-section has a drop shape with a semi-circular portion and a tapering portion, the aperture being formed at an apex of the tapering portion.

### Claim 10 (depends on 9)

The apparatus of claim 9, comprising an upper wing arranged above an upper side of the tapering portion, and a lower wing arranged below a lower side of the tapering portion.

### Claim 11 (depends on 10)

The apparatus of claim 10, wherein the housing comprises an outer housing and a flexible inner sheet arranged on an inside of the outer housing to protect the outer housing from the fluid.

### Claim 12 (depends on 11)

Apparatus according to claim 11, wherein the flexible inner sheet is attached to the upper wing and to the lower wing.

### Claim 13 (depends on 8)

A printing system comprising:
an apparatus to apply a fluid to a medium according to claim 8, and further comprising a transfer member to transfer the fluid from the apparatus to the medium, and wherein the transfer member comprises a roller.

### Claim 14 (depends on 13)

The printing system of claim 13, wherein the fluid is a primer fluid.

### Claim 15 (depends on 8)

The apparatus of claim 8, wherein the aperture seal comprises a V-shaped shim between the upper leaf and the lower leaf, the V-shaped shim to push the upper leaf into contact with the upper edge, and the V-shaped shim to push the lower leaf into contact with the lower edge.

### Claim 16 (depends on 15)

The apparatus of claim 15, wherein the V-shaped shim comprises:
a first member in contact with the first leaf,
a second member in contact with the second leaf,
wherein a space is provided between the first and second members.

### Claim 17

An apparatus for applying a fluid to a medium in a printing system, comprising:
a chamber to receive the fluid, the chamber comprising a housing, an aperture, and lateral seal assemblies, the aperture being defined between the lateral seal assemblies and having an upper edge and a lower edge,
wherein at least one of the lateral seal assemblies is moveable along an axis of the chamber to adjust a width of the aperture, and
wherein the movable lateral seal assembly comprises an aperture seal arranged to move along the aperture, the aperture seal comprising an upper leaf and a lower leaf, wherein the upper leaf is pushed into contact with the upper edge and the lower leaf is pushed into contact with the lower edge, and
wherein the moveable lateral seal assembly comprises a piston seal arranged to move within the housing.

### Claim 18 (depends on 17)

The apparatus of claim 17, wherein the moveable lateral seal assembly is operatively connected with a seal linear actuator arranged to drive the movable lateral seal assembly along the axis of the chamber.

### Claim 19 (depends on 18)

The apparatus of claim 18, wherein the seal linear actuator comprises a lead screw coupled to a motor and a floating nut moveable along the axis of the chamber.