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：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：US20190126549A1

公开(公告)日：2019-05-02

申请号：US16089065

申请日：2016-09-28

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

Inventor： Ferran ESQUIUS ,  Juan Manuel VALERO NAVAZO ,  Ignacio ALEJANDRE ,  Esteve COMAS

IPC: B29C64/295 ,  B22F3/105 ,  B29C64/153 ,  B29C64/393 ,  B33Y30/00 ,  B33Y50/02

Abstract: In an example, a method includes acquiring a thermal image of a reflector within an additive manufacturing apparatus through a screen. An energy profile of the thermal image of the reflector may be determined and, based on the energy profile, an operational characteristic of the screen may be determined.