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公开(公告)号:US20220143883A1
公开(公告)日:2022-05-12
申请号:US17312349
申请日:2019-07-26
Applicant: Hewlett-Packard Development Company, L.P.
Inventor: Chien-Hua Chen , Si-lam J. Choy , Michael W. Cumbie
Abstract: In various examples, a printbar is formed from multiple modular fluid ejection subassemblies joined together through a molding process that provides for a continuous planar substrate surface. A mold may secure the modular fluid ejection subassemblies during a molding process in which a runner conveys a molding material to seams between the joined modular fluid ejection subassemblies.
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公开(公告)号:US11326200B2
公开(公告)日:2022-05-10
申请号:US16094360
申请日:2016-07-22
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor: Michael W. Cumbie , Devin Alexander Mourey , Si-Iam Choy
Abstract: A method of preparing a sample may include depositing an aqueous solution comprising copies of a primer into a layer of hydrophobic liquid on a substrate with a thermal inkjet device. A sample may include: a substrate; a layer of hydrophobic liquid on the substrate, the layer of hydrophobic liquid comprising a plurality of droplets of aqueous solution distributed in the layer, wherein the plurality of droplets contain: primers; a polymerase enzyme; deoxynucleotide triphosphates (dNTPs); and a target sequence for replication; and a cover, the cover contacting and covering the layer of hydrophobic liquid.
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公开(公告)号:US11318458B2
公开(公告)日:2022-05-03
申请号:US16493084
申请日:2017-04-03
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor: Gary G. Lutnesky , Paul Schweitzer , Michael W. Cumbie
IPC: B01L3/02
Abstract: A cassette may include a substrate and a die coupled to the substrate wherein the substrate is made of modified polyetherimide (PEI). A system for ejecting a fluid into an assay may include at least one dispense head, the at least one dispense head including a substrate and a die coupled to the substrate wherein the substrate is made of modified polyetherimide (PEI).
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公开(公告)号:US20220111645A1
公开(公告)日:2022-04-14
申请号:US17560994
申请日:2021-12-23
Applicant: Hewlett-Packard Development Company, L.P.
Inventor: Garrett E. Clark , Michael W. Cumbie , Chien-Hua Chen
Abstract: A fluid propelling apparatus, including a plastic compound, a MEMS at least partially surrounded by the compound, and a heat sink next to the MEMS, to transfer heat away from the MEMS, wherein the heat sink is at least partly surrounded by the compound.
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公开(公告)号:US11292265B2
公开(公告)日:2022-04-05
申请号:US16761273
申请日:2017-12-02
Applicant: Hewlett-Packard Development Company, L.P.
Inventor: Si-Lam Choy , Michael W. Cumbie , Chien-Hua Chen
Abstract: A fluid circulation and ejection system may include a microfluidic die, a single orifice fluid ejector having a drive chamber in the microfluidic die and a pressurized fluid source remote from the microfluidic die to create a pressure gradient across the drive chamber to circulate fluid across the drive chamber.
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公开(公告)号:US11292263B2
公开(公告)日:2022-04-05
申请号:US16316287
申请日:2016-09-30
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor: Boon Bing Ng , Michael W. Cumbie , Yee Kiat Ng
IPC: B41J2/175
Abstract: Aspects relating to an ink container for an image reproduction device are described herein. The ink container includes a body and an electrical connection. The body is formed by molding a polymer material having a metal seed layer. The electrical connection is formed by metallizing a plurality of traces in the metal seed layer. The electrical connection extends from an inside wall of the ink container to an outer wall. A width of the electrical connection on the inside wall of the ink container gradually varies from a bottom of the ink container to a rim.
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公开(公告)号:US11285731B2
公开(公告)日:2022-03-29
申请号:US16764368
申请日:2019-01-09
Applicant: Hewlett-Packard Development Company, L.P.
Inventor: Garrett E. Clark , Michael W. Cumbie
Abstract: A fluid ejection device may include fluid actuators, ejection chambers adjacent the fluid actuators, nozzles extending from the ejection chambers, and fluid feed holes to supply fluid from a fluid supply passage to the ejection chambers. The fluid feed holes have ports connected to the ejection chambers. The ports are sized to pass bubbles formed by the fluid actuators out of the ejection chambers.
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公开(公告)号:US11278892B2
公开(公告)日:2022-03-22
申请号:US16494856
申请日:2017-04-21
Applicant: Hewlett-Packard Development Company, L.P.
Inventor: Michael W. Cumbie , Viktor Shkolnikov , Chien-Hua Chen
Abstract: A device may include a substrate, a first fluid processing chip, a second fluid processing chip, a tapered channel, and a fluid actuator. The first fluid processing chip may be disposed on the substrate and may process a micro-volume of fluid. The second fluid processing chip may be disposed on the substrate and co-planar with the first fluid processing chip. The second fluid processing chip may process at least a portion of the micro-volume of fluid. The tapered channel may be disposed between the first and second fluid processing chips to transport the at least the portion of the micro-volume of fluid from the first fluid processing chip to the second fluid processing chip. The fluid actuator may be disposed proximate to the tapered channel and may control movement of the at least the portion of the micro-volume of fluid within the tapered channel.
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公开(公告)号:US11267243B2
公开(公告)日:2022-03-08
申请号:US16766527
申请日:2019-02-06
Applicant: Hewlett-Packard Development Company, L.P.
Inventor: James Michael Gardner , Anthony M. Fuller , Michael W. Cumbie
Abstract: A die for a printhead is described herein. The die includes fluid feed holes disposed in a line parallel to a longitudinal axis of the die. The fluid feed holes are formed through a substrate of the die. Fluidic actuators are proximate to the fluid feed holes, to eject fluid received from the fluid feed holes. Field-effect transistors are parallel to the fluid feed holes. Each fluidic actuator is powered by an associated field effect transistor. Logic circuitry to actuate the field-effect transistors is disposed on an opposite side of the fluid feed holes from the field-effect transistors. Traces, disposed between the fluid feed holes, electrically couple the logic circuitry to the field-effect transistors. The die has a repeating structure including one fluid feed hole, two fluidic actuators, and two field-effect transistors placed at an interval of two times a dot pitch in a line along the die.
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公开(公告)号:US11235574B2
公开(公告)日:2022-02-01
申请号:US15772377
申请日:2016-02-29
Applicant: Hewlett-Packard Development Company, L.P.
Inventor: Garrett E. Clark , Michael W. Cumbie , Chien-Hua Chen
IPC: B01L99/00 , B41J2/05 , B41J2/14 , B01L3/00 , F04B43/04 , B81B1/00 , B81B7/00 , B81C1/00 , F04B19/00
Abstract: A fluid propelling apparatus, including a plastic compound, a MEMS at least partially surrounded by the compound, and a heat sink next to the MEMS, to transfer heat away from the MEMS, wherein the heat sink is at least partly surrounded by the compound.
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