公开(公告)号：US20150367637A1

公开(公告)日：2015-12-24

申请号：US14649794

申请日：2012-12-14

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Rhonda Lynn Wilson ,  Daniel D. Dowell

IPC: B41J2/14

CPC classification number: B41J2/155 ,  B41J2/1433 ,  B41J2/162 ,  B41J2002/14362 ,  B41J2002/14419 ,  B41J2002/14483 ,  B41J2202/19 ,  B41J2202/20 ,  B41J2202/22

Abstract: In one example, parts to be assembled into a fluid flow structure include: a first part having flat sealing surfaces each surrounding one of multiple first conduit openings; a second part having sealing ridges each surrounding one of multiple second conduit openings; and a single gasket having multiple holes each surrounded on both sides by a flat sealing surface. Each hole in the gasket is positioned to align with one of the first and second conduit openings so that, when the parts are assembled together, each gasket sealing surface contacts a corresponding one of the flat sealing surfaces on the first part or the sealing ridges on the second part and fluid may flow through the holes in the gasket from the conduit openings on one of the parts to the conduit openings on the other part.

Abstract translation: 在一个示例中，要组装成流体流动结构的部件包括：第一部分，其具有平坦的密封表面，每个围绕多个第一导管开口中的一个; 第二部分具有围绕多个第二导管开口中的一个的密封脊; 以及具有多个孔的单个垫圈，每个孔通过平坦的密封表面在两侧被包围。 垫圈中的每个孔被定位成与第一和第二导管开口中的一个对准，使得当部件组装在一起时，每个垫圈密封表面接触第一部分上的平坦密封表面中的相应一个或密封脊上的密封脊 第二部分和流体可以从垫片中的一个部件上的导管开口流过另一部分的导管开口。

公开(公告)号：US10589527B2

公开(公告)日：2020-03-17

申请号：US15763853

申请日：2015-12-21

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Daniel D. Dowell ,  Minalben Bhavin Shah

IPC: B41J2/14 ,  B41J2/175 ,  B41J2/19 ,  B41J29/13 ,  B41J2/16

Abstract: Example implementations relate to liquid adsorption. In an example, a liquid adsorption system includes a vapor barrier container having a sealable internal volume, a liquid dispensing device in the internal volume, where the liquid dispensing device includes liquid in a liquid flow path extending through at least a portion of the liquid dispensing device to an opening in communication with the internal volume, and a liquid adsorbing material in the internal volume.

公开(公告)号：US20180244042A1

公开(公告)日：2018-08-30

申请号：US15966226

申请日：2018-04-30

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Daniel D. Dowell

IPC: B41J2/14

CPC classification number: B41J2/1433 ,  B41J2/155 ,  B41J2002/14419 ,  B41J2202/19 ,  B41J2202/20

Abstract: In one example, a printhead assembly module includes an upstream row of printheads and a downstream row of printheads and a flow structure to distribute printing fluids to the printheads. The upstream and downstream rows of printheads are offset from one another such that a printhead in the upstream row extends past the downstream row at one end of the module and a printhead in the downstream row extends past the upstream row at the other end of the module. The flow structure includes a plate, slots in the plate to carry printing fluid to the printheads, and corresponding channels in the plate to distribute printing fluid to the slots. The slots and channels are arranged on the plate such that the arrangement is the same when rotated 180° about an axis of symmetry located at the geometric center of the arrangement.

公开(公告)号：US08967769B1

公开(公告)日：2015-03-03

申请号：US14010861

申请日：2013-08-27

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Daniel D. Dowell

IPC: B41J2/15 ,  B41J2/145

CPC classification number: B41J2/155 ,  B41J2202/19 ,  B41J2202/20

Abstract: In one example, a print bar structure includes: a planar, rigid first part; an elongated second part having a front face on which one or more printheads may be mounted and a rear face opposite the front face; and an elongated third part having a front face. The second part and the third part are affixed to one another but not to the first part with the first part sandwiched tightly between the rear face of the second part and the front face of the third part such that the rear face of the second part and the front face of the third part conform to the planar shape of the first part.

Abstract translation: 在一个示例中，打印棒结构包括：平面的，刚性的第一部分; 细长的第二部分，具有可以安装一个或多个打印头的正面和与前表面相对的后表面; 以及具有前表面的细长的第三部分。 第二部分和第三部分彼此固定而不是第一部分，其中第一部分紧密地夹在第二部分的后表面和第三部分的前表面之间，使得第二部分的后表面和 第三部分的前表面符合第一部分的平面形状。

公开(公告)号：US11807019B2

公开(公告)日：2023-11-07

申请号：US17312366

申请日：2019-07-31

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Ronald Albert Askeland ,  Blair A. Butler ,  Ronald J. Ender ,  Craig L. Malik ,  Daniel D. Dowell ,  Seth Stephen Haddix ,  Si-Lam J. Choy ,  Alexander Govyadinov

IPC: B41J2/175

CPC classification number: B41J2/17596

Abstract: A printing fluid pen includes a plurality of fluid ports, a pressure regulator in fluid communication with a first fluid port, and a valve in fluid communication with a second fluid port. The first fluid port is to deliver printing fluid to a fluid ejection device, and the second fluid port is to direct printing fluid out of the pen. In response to negative pressure, the valve is to open to enable fluids within the pen to exit via the second port.

公开(公告)号：US20220161568A1

公开(公告)日：2022-05-26

申请号：US17312366

申请日：2019-07-31

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Ronald Albert Askeland ,  Blair A. Butler ,  Ronald J. Ender ,  Craig L. Malik ,  Daniel D. Dowell ,  Seth Stephen Haddix ,  Si-lam J. Choy ,  Alexander Govyadinov

IPC: B41J2/175

Abstract: An example printing fluid pen comprises a plurality of fluid ports, a pressure regulator in fluid communication with a first fluid port, and a valve in fluid communication with a second fluid port. The first fluid port is to deliver printing fluid to a fluid ejection device, and the second fluid port to direct printing fluid out of the pen. In response to negative pressure, the valve is to open to enable fluids within the pen to exit via the second port.

公开(公告)号：US20170080713A1

公开(公告)日：2017-03-23

申请号：US15365659

申请日：2016-11-30

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Rhonda Lynn Wilson ,  Daniel D. Dowell

IPC: B41J2/155

CPC classification number: B41J2/155 ,  B41J2/1433 ,  B41J2/162 ,  B41J2002/14362 ,  B41J2002/14419 ,  B41J2002/14483 ,  B41J2202/19 ,  B41J2202/20 ,  B41J2202/22

Abstract: In some examples, a print bar includes a body, a plurality of printing fluid dispensing devices mounted to the body, and an assembly to carry a printing fluid to the printing fluid dispensing devices. The assembly comprises a first part having outlets to receive the printing fluid from a first conduit, and a second part attached to the first part, the second part having inlets aligned with the outlets of the first part, the second part to carry the printing fluid to the plurality of printing fluid dispensing devices. The assembly further comprises a pliable gasket comprising first and second flat sealing surfaces sealing the first and second parts around a first inlet of the inlets and a first outlet of the outlets, the first flat sealing surface contacting a ridge on one of the first and second parts, and the second flat sealing surface contacting a flat surface on the other of the first and second parts.

公开(公告)号：US10569543B2

公开(公告)日：2020-02-25

申请号：US15966226

申请日：2018-04-30

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Daniel D. Dowell

IPC: B41J2/14 ,  B41J2/155

Abstract: In one example, a printhead assembly module includes an upstream row of printheads and a downstream row of printheads and a flow structure to distribute printing fluids to the printheads. The upstream and downstream rows of printheads are offset from one another such that a printhead in the upstream row extends past the downstream row at one end of the module and a printhead in the downstream row extends past the upstream row at the other end of the module. The flow structure includes a plate, slots in the plate to carry printing fluid to the printheads, and corresponding channels in the plate to distribute printing fluid to the slots. The slots and channels are arranged on the plate such that the arrangement is the same when rotated 180° about an axis of symmetry located at the geometric center of the arrangement.

公开(公告)号：US10265957B2

公开(公告)日：2019-04-23

申请号：US15365659

申请日：2016-11-30

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Rhonda Lynn Wilson ,  Daniel D. Dowell

IPC: B41J2/14 ,  B41J2/16 ,  B41J2/155

Abstract: In some examples, a print bar includes a body, a plurality of printing fluid dispensing devices mounted to the body, and an assembly to carry a printing fluid to the printing fluid dispensing devices. The assembly comprises a first part having outlets to receive the printing fluid from a first conduit, and a second part attached to the first part, the second part having inlets aligned with the outlets of the first part, the second part to carry the printing fluid to the plurality of printing fluid dispensing devices. The assembly further comprises a pliable gasket comprising first and second flat sealing surfaces sealing the first and second parts around a first inlet of the inlets and a first outlet of the outlets, the first flat sealing surface contacting a ridge on one of the first and second parts, and the second flat sealing surface contacting a flat surface on the other of the first and second parts.

公开(公告)号：US20180290448A1

公开(公告)日：2018-10-11

申请号：US15763853

申请日：2015-12-21

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Daniel D. Dowell ,  Minalben Bhavin Shah

IPC: B41J2/14 ,  B41J2/16

Abstract: Example implementations relate to liquid adsorption. In an example, a liquid adsorption system includes a vapor barrier container having a sealable internal volume, a liquid dispensing device in the internal volume, where the liquid dispensing device includes liquid in a liquid flow path extending through at least a portion of the liquid dispensing device to an opening in communication with the internal volume, and a liquid adsorbing material in the internal volume.