公开(公告)号：US20170368835A1

公开(公告)日：2017-12-28

申请号：US15542024

申请日：2015-01-22

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

Inventor： David R Otis ,  Silam J Choy ,  Kevin E Swier ,  Zhuqing Zhang

IPC: B41J2/19 ,  B41J2/14 ,  B41J2/175

CPC classification number: B41J2/19 ,  B41J2/175 ,  B41J2002/14483

Abstract: In one example, a vent includes multiple parts each having a different resistivity to passing a gas. The parts are arranged so that the gas may pass through all parts simultaneously as long as the parts remain permeable to the gas.

公开(公告)号：US10661576B2

公开(公告)日：2020-05-26

申请号：US15536211

申请日：2015-01-20

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

Inventor： David R Otis ,  James R Owen

IPC: B01D53/22 ,  B41J2/19 ,  B01D19/00 ,  B41J2/175

Abstract: In one example, a liquid-gas separator includes a composite membrane to pass a gas but not a liquid at a first pressure difference across the membrane and to block the gas passing back through the membrane at a second pressure difference smaller than the first pressure difference.

公开(公告)号：US10603922B2

公开(公告)日：2020-03-31

申请号：US15542024

申请日：2015-01-22

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

Inventor： David R Otis ,  Silam J Choy ,  Kevin E Swier ,  Zhuqing Zhang

IPC: B41J2/19 ,  B41J2/175 ,  B41J2/14

Abstract: In one example, a vent includes multiple parts each having a different resistivity to passing a gas. The parts are arranged so that the gas may pass through all parts simultaneously as long as the parts remain permeable to the gas.