公开(公告)号：WO2019013798A1

公开(公告)日：2019-01-17

申请号：PCT/US2017/041902

申请日：2017-07-13

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

Inventor： SWIER, Kevin E. ,  HULICK, Kevin

IPC: F16M11/00 ,  B33Y40/00 ,  B29C64/329 ,  B65D83/58

CPC classification number: B29C64/329 ,  B33Y40/00

Abstract: Example implementations relate to replaceable hoppers of a print apparatus. In some examples, a system may include a connection component integrated with a replaceable hopper. The connection component may include an input flow conduit positioned adjacent to and associated with an output flow conduit and an electrical connection.

公开(公告)号：WO2019005017A1

公开(公告)日：2019-01-03

申请号：PCT/US2017/039568

申请日：2017-06-27

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

Inventor： LAWS, Alexander David ,  KANG, Samantha ,  OSBORNE, Jay

IPC: B29C64/35 ,  B33Y40/00

CPC classification number: B29C64/314 ,  B29C64/35 ,  B33Y40/00

Abstract: Printers and associated printer maintenance methods and apparatus are disclosed. An example printer includes a build material dispenser to dispense build material onto a work area; a contaminant filter to receive at least some of the build material from the work area, the contaminant filter being structured to filter contaminants from the build material received; and a drawer including the contaminant filter, the drawer to enable the contaminant filter to be removed for cleaning.

公开(公告)号：WO2018199919A1

公开(公告)日：2018-11-01

申请号：PCT/US2017/029284

申请日：2017-04-25

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

Inventor： SCOFIELD, Samuel

IPC: B29C64/20 ,  B29C64/209 ,  B33Y30/00

CPC classification number: B29C64/205 ,  B29C64/153 ,  B33Y10/00 ,  B33Y30/00

Abstract: It is disclosed a 3D printing system comprising a carriage and a carriage for 3D printing systems comprising: at least one tool to act on build material over a spreading platform wherein the carriage is movable over the spreading platform along a travel direction; and a deflector that extends from the tool and/or the carriage in at least the travel direction as to prevent build material from moving upwards.

公开(公告)号：WO2018199894A1

公开(公告)日：2018-11-01

申请号：PCT/US2017/029131

申请日：2017-04-24

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

Inventor： DUDA, Michael ,  ROMAN, Justin M. ,  PICKARD, Joel V.

IPC: B29C64/153 ,  B29C64/20 ,  B29C64/227 ,  B33Y30/00 ,  B33Y80/00

Abstract: A three-dimensional (3D) printer and method of additive manufacture are disclosed. The method includes building a three-dimensional (3D) object via a 3D printing process. After the 3D printing process, the 3D object is contained within a cake comprising the 3D object and partially fused excess build material. The method further includes vibrating the cake to loosen the excess build material. The frequency of the vibration is swept across a predetermined range of frequencies over a predetermined sweep interval.

公开(公告)号：WO2018194631A1

公开(公告)日：2018-10-25

申请号：PCT/US2017/028709

申请日：2017-04-21

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

Inventor： MOROVIC, Peter ,  MOROVIC, Jan ,  GOTTWALS, Melanie M. ,  TASTL, Ingeborg

IPC: B29C64/393 ,  B29C64/386 ,  B29C64/314 ,  B33Y50/02

CPC classification number: B29C64/393 ,  B29C64/165 ,  B29C64/314 ,  B33Y10/00 ,  B33Y50/02

Abstract: In an example, a method includes receiving, at a processor, a first matrix comprising a set of print coverage vectors, each print coverage vector specifying print materials for object generation using additive manufacturing and a second matrix comprising a corresponding set of properties for objects generated using the print coverage vectors. The method may further include determining, by the processor, a solution to an objective function relating the first and second matrices.

公开(公告)号：WO2018194630A1

公开(公告)日：2018-10-25

申请号：PCT/US2017/028707

申请日：2017-04-21

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

Inventor： GONZALEZ, Sergio ,  CARRUESCO LLORENS, Alex ,  ABELLO ROSELLO, Lluis

IPC: B33Y50/02 ,  B29C64/393

Abstract: A method comprises receiving object model data in an original coordinate system to print within a predefined usable build volume of a three dimensional printer. The method comprises receiving at least one compensation factor for the object model data to compensate for any shrinking of an object. The method comprises scaling the object model data by the at least one compensation factor to provide printable object model data. The scaling is performed with reference to an origin at a centre of the usable build volume.

公开(公告)号：WO2018194582A1

公开(公告)日：2018-10-25

申请号：PCT/US2017/028331

申请日：2017-04-19

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

Inventor： MARTIN, Warren Scott ,  ALVAREZ, Miguel ,  REINHART, Steven E.

IPC: B41J2/135 ,  B41J29/08 ,  B41J29/12

CPC classification number: B41J29/13

Abstract: A print head assembly for a printer is described. The print head assembly includes a print die and an offset shim to protect the print die when the print head assembly is disposed on a surface.

公开(公告)号：WO2018190830A1

公开(公告)日：2018-10-18

申请号：PCT/US2017/027232

申请日：2017-04-12

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

Inventor： BARRIBEAU, Jeremy ,  HORNSTEIN, Adam L. ,  MIRANDA, Shannon

IPC: B29C64/245 ,  B33Y30/00 ,  B29C41/42

CPC classification number: B29C64/393 ,  B29C41/42 ,  B29C64/232 ,  B29C64/245 ,  B33Y30/00 ,  B33Y50/02

Abstract: Example implementations relate to an actuateable motor and platen. In some examples, an apparatus may include a build bucket including a platen disposed therein, a part identification mechanism, and a motor coupled to the platen. The motor may be actuateable to, after a fabricated part is completed within the build bucket, alter a height of the platen responsive to receipt of information determined by the part identification mechanism. In some examples, the information may correspond to a fabricated part disposed in the build bucket.

公开(公告)号：WO2018169514A1

公开(公告)日：2018-09-20

申请号：PCT/US2017/022237

申请日：2017-03-14

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

Inventor： CHEN, Chien-Hua ,  BOUCHER, William R. ,  CUMBIE, Michael W.

IPC: G01F23/24 ,  G01F23/26 ,  G01F23/284 ,  G01F23/22 ,  B41J2/175

Abstract: A liquid level sensor circuit for measuring a liquid level in the reservoir comprising two electrodes extending into the reservoir along at least part of a height of the reservoir down to a base of the reservoir, wherein the liquid level sensor circuit is arranged to have increased sensitivity near the base.

公开(公告)号：WO2018160159A1

公开(公告)日：2018-09-07

申请号：PCT/US2017/019834

申请日：2017-02-28

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

Inventor： BLACK, William

IPC: B41J2/175

CPC classification number: B41J2/17513 ,  B41J2/175 ,  B41J2/1752 ,  B41J2/17523 ,  B41J2/17556

Abstract: Different examples of systems, reservoirs and methods are described. One of these examples involves includes a reservoir with a liquid outlet through which liquid is to exit the reservoir. The reservoir may further include a bubbler structure to supply air to the inner volume of the reservoir, the bubbler structure includes an air outlet.