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公开(公告)号:US20200055317A1
公开(公告)日:2020-02-20
申请号:US16661802
申请日:2019-10-23
Applicant: Hewlett-Packard Development Company, L.P.
Inventor: Dennis R. Esterberg , Matthew J. Janssen , Jeffrey A. Nielsen , Norman L. Berger
Abstract: An example printhead assembly includes a housing, nozzles and a collapsible container within the housing to supply ink to the nozzles. The collapsible container includes a top wall, a bottom wall, first and second side walls that form an interior and a spring assembly within the interior. The first flexible wall includes a first amount of excess material. The second flexible wall includes a second amount of excess material less than the first amount of excess material such that motion of the first flexible wall of the collapsible container is constrained against movement to a lesser extent as compared to the second flexible wall. The first flexible wall faces the sensor. A sensor assembly is coupled to the housing and includes a sensor to provide a sensor signal indicating the amount of ink within the collapsible container.
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公开(公告)号:US20180186150A1
公开(公告)日:2018-07-05
申请号:US15896292
申请日:2018-02-14
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor: Jeffrey A. Nielsen , Craig Olbrich , Richard W. Seaver , David R. Otis, JR.
CPC classification number: B41J2/1404 , B41J2/14 , B41J2/14201 , B41J2/16 , B41J2/1603 , B41J2/1607 , B41J2/1626 , B41J2/1631 , B41J2/1639 , B41J2/1645 , B41J2202/11
Abstract: An inkjet material dispenser system includes a printhead member. According to one exemplary embodiment, the printhead member includes at least one drop ejector including an insulating stack layer and a top orifice surface defining an orifice, wherein a ratio of a diameter of the orifice to a height of the insulating stack layer (O/L ratio) is at least 1.0.
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公开(公告)号:US11801506B2
公开(公告)日:2023-10-31
申请号:US16767086
申请日:2018-01-30
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor: Jeffrey A. Nielsen , Christie Dudenhoefer , Kenneth Ward
IPC: B01L3/02
CPC classification number: B01L3/0268 , B01L2300/0829 , B01L2300/0896 , B01L2400/0439
Abstract: A fluid ejection system, in an example, includes at least one nozzle of at least one die from which a fluid is ejected and at least one nanowell at which the at least one nozzle ejects an amount of fluid. A method of dispensing a fluid, in an example, includes addressing at least one nanowell with at least one nozzle of at least one die, and depositing a fluid in the nanowell with the at least one nozzle.
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公开(公告)号:US20230273233A1
公开(公告)日:2023-08-31
申请号:US18015044
申请日:2020-07-20
Applicant: Hewlett-Packard Development Company, L.P.
Inventor: Viktor Shkolnikov , Roberto A. Pugliese , Jeffrey A. Nielsen , Michael J. Day , Diane R. Hammerstad
CPC classification number: G01N35/1016 , B01L3/0268 , B01L2200/061
Abstract: In one example in accordance with the present disclosure, a particle dispensing system is described. The particle dispensing system includes a port to receive a number of fluid cartridges. Each fluid cartridge is to hold an amount of fluid to be ejected. The particle dispensing system also includes an optical verification system to determine, following ejection, a count of a number of particles ejected during an ejection event. The particle dispensing system also includes a controller to selectively activate a number of fluid ejectors to eject the amount of fluid.
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公开(公告)号:US11639056B2
公开(公告)日:2023-05-02
申请号:US16765795
申请日:2017-12-15
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor: Matthew David Smith , Dennis R. Esterberg , Jeffrey A. Nielsen
Abstract: In one example in accordance with the present disclosure, a fluidic ejection controller is described. The fluidic ejection controller includes a firing board to pass electrical control signals for ejecting fluid from a fluidic ejection device. An ejection board of the fluidic ejection controller is electrically coupled to, and selectively removable from, the firing board to pass the electrical control signals to the fluidic ejection device. Electrical pins are disposed on the ejection board in a pattern that matches a pattern of electrical pads on the fluidic ejection device. The electrical pins interface with corresponding electrical pads to pass the electrical control signals from the ejection board to the fluidic ejection device.
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公开(公告)号:US11278928B2
公开(公告)日:2022-03-22
申请号:US16766246
申请日:2018-01-30
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor: Roberto A. Pugliese , Jeffrey A. Nielsen , Christie Dudenhoefer , Craig Olbrich , Debora J. Thomas
Abstract: An alignment system, in an example, may include a substrate comprising at least one nanowell, at least one fluid ejection device comprising at least one die, the at least one die comprising as least one nozzle, and an alignment device to align the at least one nozzle to the at least one nanowell.
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公开(公告)号:US20200368737A1
公开(公告)日:2020-11-26
申请号:US16767086
申请日:2018-01-30
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor: Jeffrey A. Nielsen , Christie Dudenhoefer , Kenneth Ward
IPC: B01L3/02
Abstract: A fluid ejection system, in an example, includes at least one nozzle of at least one die from which a fluid is ejected and at least one nanowell at which the at least one nozzle ejects an amount of fluid. A method of dispensing a fluid, in an example, includes addressing at least one nanowell with at least one nozzle of at least one die, and depositing a fluid in the nanowell with the at least one nozzle.
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公开(公告)号:US20200298226A1
公开(公告)日:2020-09-24
申请号:US16765705
申请日:2017-12-15
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor: Kathryn Cyr , Debora J. Thomas , Jeffrey A. Nielsen
IPC: B01L3/02
Abstract: In one example in accordance with the present disclosure, a fluid ejection die is described. The fluid ejection die includes a fluid feed slot to deliver fluid from a reservoir to an array of nozzles. Each nozzle of the array includes an ejection chamber, an opening, a fluid actuator disposed within the ejection chamber, and a fluid channel between the fluid feed slot and the ejection chamber. The fluid ejection die also includes a fluid cleaning structure to allow live cells in the fluid to pass to the nozzle while capturing other components.
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公开(公告)号:US20200291470A1
公开(公告)日:2020-09-17
申请号:US16645223
申请日:2017-10-13
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor: Adam Higgins , Viktor Shkolnikov , Jeffrey A. Nielsen
IPC: C12Q1/6874 , B01L3/02 , C12Q1/6806
Abstract: A method of sequencing multiple nucleic acid sequences, including: estimating a concentration of cells in a solution; and depositing a volume of the solution into a well on a well plate using an ejection device, the amount of solution selected to contain no more than a single cell.
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公开(公告)号:US20160346793A1
公开(公告)日:2016-12-01
申请号:US15231263
申请日:2016-08-08
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor: Thomas R. Strand , Jeffrey A. Nielsen , James A. Feinn , Stan E. Leigh
CPC classification number: B05B1/02 , B01L3/0268 , B01L2200/0605 , B01L2200/14 , B01L2300/0829 , B01L2300/161 , B05B1/185 , B05B1/28 , B41J2/005 , B41J2/1404 , B41J2/16 , Y10T29/49401
Abstract: A method to control puddling on a fluid dispense head, comprising limiting the height of a puddle of fluid over a fluid dispensing nozzle while simultaneously limiting the spread of the puddle laterally away from the nozzle.
Abstract translation: 一种控制流体分配头上的搅拌的方法,包括限制流体分配喷嘴上的水坑的高度,同时限制水槽横向远离喷嘴的扩展。
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