公开(公告)号：US10252527B2

公开(公告)日：2019-04-09

申请号：US15834353

申请日：2017-12-07

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

Inventor： James A. Feinn ,  David P. Markel ,  Albert Nagao ,  Thomas R. Strand ,  Paul A. Richards ,  Lawrence H. White ,  Erik D. Torniainen

IPC: B41J2/14

Abstract: In some examples, a fluid nozzle includes an aperture comprising a first lobe that is shaped as an ellipse, and a second lobe that has a non-circular shape and has a different size than a size of the first lobe. The fluid nozzle further includes protrusions between the first and second lobes extending inward and forming a throat between the first and second lobes.

公开(公告)号：US20180104953A1

公开(公告)日：2018-04-19

申请号：US15834353

申请日：2017-12-07

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

Inventor： James A. Feinn ,  David P. Markel ,  Albert Nagao ,  Thomas R. Strand ,  Paul A. Richards ,  Lawrence H. White ,  Erik D. Torniainen

IPC: B41J2/14

CPC classification number: B41J2/1433 ,  B41J2/14016 ,  B41J2002/14387 ,  B41J2002/14475 ,  B41J2202/11

Abstract: In some examples, a fluid nozzle includes an aperture comprising a first lobe that is shaped as an ellipse, and a second lobe that has a non-circular shape and has a different size than a size of the first lobe. The fluid nozzle further includes protrusions between the first and second lobes extending inward and forming a throat between the first and second lobes.

公开(公告)号：US10562304B2

公开(公告)日：2020-02-18

申请号：US16139716

申请日：2018-09-24

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

Inventor： James A. Feinn ,  Albert Nagao ,  Thomas R. Strand ,  David R. Thomas ,  Erik D. Torniainen ,  Lawrence H. White

IPC: B41J2/14

Abstract: An inkjet nozzle includes an aperture with a noncircular opening substantially defined by a polynomial equation. A droplet generator is also described which includes a firing chamber fluidically coupled to a fluid reservoir a heating resistor and a nozzle. The nozzle includes an aperture forming a passage from the firing chamber to the exterior of the droplet generator through a top hat layer. The nozzle is defined by a closed polynomial and has a mathematically smooth and mathematically continuous shape around aperture's perimeter wall, with two protrusions extending into the center of the aperture.

公开(公告)号：US20190023010A1

公开(公告)日：2019-01-24

申请号：US16139716

申请日：2018-09-24

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

Inventor： James A. Feinn ,  Albert Nagao ,  Thomas R. Strand ,  David R. Thomas ,  Erik D. Torniainen ,  Lawrence H. White

IPC: B41J2/14

CPC classification number: B41J2/1433 ,  B41J2/14016 ,  B41J2002/14387 ,  B41J2002/14475 ,  B41J2202/11

Abstract: An Inkjet nozzle includes an aperture with a noncircular opening substantially defined by a polynomial equation. A droplet generator is also described which includes a firing chamber fluidically coupled to a fluid reservoir a heating resistor and a nozzle. The nozzle includes an aperture forming a passage from the firing chamber to the exterior of the droplet generator through a top hat layer. The nozzle is defined by a closed polynomial and has a mathematically smooth and mathematically continuous shape around aperture's perimeter wall, with two protrusions extending into the center of the aperture.