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公开(公告)号：US20220032644A1
公开(公告)日：2022-02-03
申请号：US17276930
申请日：2018-12-04
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Christopher John Arnold , Paul Allan Osborne , Devin Michael Knowles
Abstract: In one example in accordance with the present disclosure, a fluid extraction system is described. The fluid extraction system includes an interface to fluidically and electrically couple a removable extraction reservoir to a printing device. A supply line of the fluid extraction system transports fluid from the interface to a reservoir of the printing device. A return line of the fluid extraction system is coupled to the reservoir and supply line and transports fluid from the reservoir to the interface. The fluid extraction system also includes a switch to, responsive to removal of the removable extraction reservoir from the printing device, activate a fill pump to draw fluid through the supply line away from the interface.
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公开(公告)号：US20210356311A1
公开(公告)日：2021-11-18
申请号：US16607761
申请日：2018-07-31
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Christopher John Arnold , Russell Sterling Sauer
Abstract: An example of an apparatus is provided. The apparatus includes a a current source. The apparatus includes a conductor in electrical communication with the current source and a conductive fluid in a reservoir. The apparatus includes a first sensing rod to extend into the reservoir, wherein the first sensing rod has a first diameter. The apparatus includes a tip disposed at an end of the first sensing rod to interact with a surface of the conductive fluid. The tip has a second diameter over a first portion of the tip adjacent to the first sensing rod. The second diameter is smaller than the first diameter. The apparatus includes a sensor to detect an electrical signal between the conductor and the first sensing rod.
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公开(公告)号：US11312142B2
公开(公告)日：2022-04-26
申请号：US16499301
申请日：2018-07-13
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Christopher John Arnold , Jefferson P. Ward
IPC: B41J2/175
Abstract: A printing device may include an input port to interface with a supply simulator; and a drain fluidic interface to interface with a removable extraction reservoir simultaneously with the coupling of the supply simulator with the input port; the supply simulator comprising a memory device to transfer data related to an amount of fluid transferred between the printing device and the removable extraction reservoir.
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公开(公告)号：US11267254B2
公开(公告)日：2022-03-08
申请号：US17255166
申请日：2018-09-27
Applicant: Hewlett-Packard Development Company, L.P.
Abstract: An extraction pump of a printing device fluidically connected to a reservoir of the printing device is set to a specified rotational velocity. A pulse-width modulation (PWM) value of the extraction pump correspondingly increases until the extraction pump rotates at the specified rotational velocity. While the power of the extraction pump is monitored, a power of a supply pump of the printing device fluidically connected between the extraction pump and the reservoir is continually increased; the power of the extraction pump correspondingly decreases to maintain rotation of the extraction pump at the specified rotational velocity. Responsive to the power of the extraction pump decreasing to a characterized value for the specified rotational velocity, the power of the supply pump ceases being increased.
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公开(公告)号：US20210260888A1
公开(公告)日：2021-08-26
申请号：US17255166
申请日：2018-09-27
Applicant: Hewlett-Packard Development Company, L.P.
Abstract: An extraction pump of a printing device fluidically connected to a reservoir of the printing device is set to a specified rotational velocity. A pulse-width modulation (PWM) value of the extraction pump correspondingly increases until the extraction pump rotates at the specified rotational velocity. While the power of the extraction pump is monitored, a power of a supply pump of the printing device fluidically connected between the extraction pump and the reservoir is continually increased; the power of the extraction pump correspondingly decreases to maintain rotation of the extraction pump at the specified rotational velocity. Responsive to the power of the extraction pump decreasing to a characterized value for the specified rotational velocity, the power of the supply pump ceases being increased.
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Patent Agency Ranking
公开(公告)号：US20210245521A1
公开(公告)日：2021-08-12
申请号：US17049147
申请日：2018-07-13
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Wesley R Schalk , Christopher John Arnold , Jesse Sutherland
IPC: B41J2/175 , B33Y40/00 , B33Y50/00 , B29C64/307 , B29C64/386
Abstract: In one example in accordance with the present disclosure, a fluid extraction system is described. The fluid extraction system includes an interface to fluidically and electrically couple a removable extraction reservoir to a printing device. The removable extraction reservoir is to receive an amount of fluid from a reservoir in the printing device. The system also includes a controller to, based on data received from memory of an interfaced removable extraction reservoir, initiate an extraction operation wherein fluid from the reservoir is passed to the removable extraction reservoir.
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公开(公告)号：US11467017B2
公开(公告)日：2022-10-11
申请号：US16607761
申请日：2018-07-31
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Christopher John Arnold , Russell Sterling Sauer
Abstract: An example of an apparatus is provided. The apparatus includes a current source. The apparatus includes a conductor in electrical communication with the current source and a conductive fluid in a reservoir. The apparatus includes a first sensing rod to extend into the reservoir, wherein the first sensing rod has a first diameter. The apparatus includes a tip disposed at an end of the first sensing rod to interact with a surface of the conductive fluid. The tip has a second diameter over a first portion of the tip adjacent to the first sensing rod. The second diameter is smaller than the first diameter. The apparatus includes a sensor to detect an electrical signal between the conductor and the first sensing rod.
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公开(公告)号：US11413874B2
公开(公告)日：2022-08-16
申请号：US17276950
申请日：2018-12-04
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Paul Allan Osborne , Devin Michael Knowles , Christopher John Arnold
Abstract: In one example in accordance with the present disclosure, a fluid extraction system is described. The fluid extraction system includes an interface to fluidically and electrically couple a removable extraction reservoir to a printing device. A return line of the fluid extraction system is to connect the interface and a reservoir of the printing device. The fluid extraction system includes a switch to 1) responsive to attachment of the removable extraction reservoir to the printing device, open the return line to direct fluid form the reservoir to the interface and 2) responsive to removal of the removable extraction reservoir from the printing device, close the return line.
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公开(公告)号：US11358394B2
公开(公告)日：2022-06-14
申请号：US17049495
申请日：2018-08-10
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Christopher John Arnold
IPC: B41J2/175 , B29C64/321 , B29C64/255 , B33Y30/00
Abstract: Some examples include a print substance reservoir for a printing system including a housing to be arranged within a printing device, the housing having an interior for containing a print substance and an exterior, an active vent valve to allow gases to travel from the interior to the exterior when the inlet is receiving the print substance, the active vent valve electrically energizable and de-energizable in response to signals corresponding to the transfer of the print substance into the housing, a passive inlet valve to open to allow air to enter the interior during removal of the print substance from the reservoir, the passive inlet valve biased to a closed position, and a passive pressure relief valve to open when pressure within the interior is greater than a predetermined pressure limit, the passive pressure relief valve biased to a closed position.
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公开(公告)号：US20210237460A1
公开(公告)日：2021-08-05
申请号：US17049495
申请日：2018-08-10
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Christopher John Arnold
IPC: B41J2/175 , B29C64/255 , B29C64/321
Abstract: Some examples include a print substance reservoir for a printing system including a housing to be arranged within a printing device, the housing having an interior for containing a print substance and an exterior, an active vent valve to allow gases to travel from the interior to the exterior when the inlet is receiving the print substance, the active vent valve electrically energizable and de-energizable in response to signals corresponding to the transfer of the print substance into the housing, a passive inlet valve to open to allow air to enter the interior during removal of the print substance from the reservoir, the passive inlet valve biased to a closed position, and a passive pressure relief valve to open when pressure within the interior is greater than a predetermined pressure limit, the passive pressure relief valve biased to a closed position.
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