公开(公告)号：US20170368756A1

公开(公告)日：2017-12-28

申请号：US15540921

申请日：2015-01-30

Applicant: Santiago SANZ ANANOS ,  Isabel SANZ ANANOS ,  Sergi CULUBRET ,  Hewlett-Packard Development Company, L.P.

Inventor： Santiago SANZ ANANOS ,  Isabel SANZ ANANOS ,  Sergi CULUBRET

IPC: B29C64/393 ,  B33Y50/02 ,  B33Y10/00 ,  B33Y30/00 ,  B29C64/165 ,  B29C64/20

CPC classification number: B29C64/393 ,  B29C64/165 ,  B29C64/20 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

Abstract: A method of fabricating a three dimensional object is provided. A build layer comprising an area of solidified build material and an area of non-solidified build material is formed. The build layer is formed by depositing a layer of non-solidified build material and treating the build material to form the area of solidified build material. The method also involves determining an edge profile for the build layer. Determining the edge profile involves measuring a variation in height of the build layer across a transition between the area of solidified build material and the area of non-solidified build material.

公开(公告)号：US20200330914A1

公开(公告)日：2020-10-22

申请号：US16087705

申请日：2017-04-03

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

Inventor： Sergi CULUBRET ,  Esteve COMAS ,  Ignacio ALEJANDRE

IPC: B01D45/12 ,  B04C9/00

Abstract: In an example, a filtration apparatus includes a cyclonic particle separation chamber having an inner surface and a liquid source. The liquid source may be to supply liquid to provide a flow of liquid on the inner surface.

公开(公告)号：US20190030922A1

公开(公告)日：2019-01-31

申请号：US16149685

申请日：2018-10-02

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

Inventor： Sergi CULUBRET ,  Lluis VALLES ,  Lluis HIERRO

IPC: B41J11/58

Abstract: In one example, an elevator for a roll of print media includes rotatable shafts oriented parallel to one another and translatable supports to support a roll of print media. Each support is operatively connected to the shafts such that rotating the shafts in a first direction raises the supports and rotating the shafts in a second direction opposite the first direction lowers the supports.

公开(公告)号：US20200368658A1

公开(公告)日：2020-11-26

申请号：US16087702

申请日：2017-03-28

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

Inventor： Ignacio ALEJANDRE ,  Esteve COMAS ,  Sergi CULUBRET

IPC: B01D45/12 ,  B04C11/00 ,  B04C1/00

Abstract: In an example, an air filtration apparatus includes a cyclonic particle separation chamber having a first inlet to draw air from a first region, second inlet to draw air from a second region, and an exhaust port. The air filtration apparatus may further include a pressure sensor to sense a pressure of the first region, and a cyclonic air flow controller. The cyclonic air flow controller may control an air inflow received via the second inlet in response to an output from the pressure sensor to maintain a total air flow rate via the exhaust port.

公开(公告)号：US20180117846A1

公开(公告)日：2018-05-03

申请号：US15545619

申请日：2015-04-17

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

Inventor： Salvador SANCHEZ ,  Sergi CULUBRET ,  Isabel SANZ ANANOS ,  Santiago SANZ ANANOS

IPC: B29C64/393 ,  B29C64/165

CPC classification number: B29C64/393 ,  B29C64/165 ,  B29C64/386 ,  B33Y10/00 ,  B33Y50/02

Abstract: A method is described in which a pattern is printed using a nozzle for depositing a first agent to a layer of build material, the layer of build material is cured, and the presence of a difference in height between at the edge of the first pattern is checked and an anomaly is detected if said difference is not present.

公开(公告)号：US20170210075A1

公开(公告)日：2017-07-27

申请号：US15515333

申请日：2014-10-03

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

Inventor： Isabel SANZ ANANOS, JR. ,  Sergi CULUBRET ,  Santiago SANZ ANANOS

IPC: B29C67/00 ,  G05B19/31 ,  B33Y30/00 ,  B33Y10/00 ,  B33Y50/02

CPC classification number: B29C64/165 ,  B29C64/386 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B33Y70/00 ,  B41J25/001 ,  G05B2219/49023

Abstract: A method of aligning an agent distributor in an apparatus for generating a three-dimensional object comprises selectively depositing an agent on a layer of build material to form a predetermined alignment pattern (211, 212, 311, 312), and detecting the alignment pattern (211, 212, 311, 312) from a height profile in a surface of the build material, and performing an alignment operation using the detected alignment pattern (211, 212, 311, 312). An alignment pattern (211, 212, 311, 312) may comprise, for example, a series of triangles which are scanned to determine misalignment.