公开(公告)号：US20190202208A1

公开(公告)日：2019-07-04

申请号：US16092849

申请日：2016-04-21

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

Inventor： Paul Mark Haines ,  Mark A. Devries ,  John L. Taylor

IPC: B41J2/175 ,  B41J29/38

CPC classification number: B41J2/17596 ,  B41J2/175 ,  B41J29/38

Abstract: A rocker valve includes a number of rails to transitionally connect an arm of a spring to the rocker valve such that the arm of the spring transitions across the rocker valve to actuate the rocker valve, a first side of the rocker valve to selectively engage with a valve seat based on a position of the arm of the spring relative to the first side of the rocker valve, and a number of pivot arms to pivot the rocker valve between a closed position and an open position such that the first side of the rocker valve selectively engages with the valve seat to regulate pressure inside a print head assembly.

公开(公告)号：US20230137179A1

公开(公告)日：2023-05-04

申请号：US17912084

申请日：2020-03-30

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

Inventor： John L. Taylor ,  Scott Sayer ,  Eleanor Sarah Wright

IPC: B41J2/175

Abstract: Examples of fluid reservoirs are described herein. In some examples, a fluid reservoir includes a routing. In some examples, the fluid reservoir includes a structure contacting the routing. In some examples, the structure contacts fluid in the fluid reservoir. In some examples, the structure includes carrier material and electrically conductive non-metal material.

公开(公告)号：US10596821B2

公开(公告)日：2020-03-24

申请号：US16092849

申请日：2016-04-21

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

Inventor： Paul Mark Haines ,  Mark A. Devries ,  John L. Taylor

IPC: B41J2/175 ,  B41J29/38

Abstract: A rocker valve includes a number of rails to transitionally connect an arm of a spring to the rocker valve such that the arm of the spring transitions across the rocker valve to actuate the rocker valve, a first side of the rocker valve to selectively engage with a valve seat based on a position of the arm of the spring relative to the first side of the rocker valve, and a number of pivot arms to pivot the rocker valve between a closed position and an open position such that the first side of the rocker valve selectively engages with the valve seat to regulate pressure inside a print head assembly.