公开(公告)号：US20200348163A1

公开(公告)日：2020-11-05

申请号：US16929576

申请日：2020-07-15

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

Inventor： Michael W. Cumbie ,  Robert N.K. Browning

IPC: G01F23/24 ,  B41J2/175 ,  B41J2/195 ,  G01F23/22 ,  H05B3/82

Abstract: In some examples, a liquid container comprises a chamber forming a volume containing a liquid, an elongated strip extending into the volume containing the liquid, a plurality of heaters supported by the strip along the strip, and a plurality of temperature sensors supported by the strip along the strip. The temperature sensors output signals indicative of dissipation of heat from the heaters to indicate a level of the liquid in the volume.

公开(公告)号：US20190011306A1

公开(公告)日：2019-01-10

申请号：US16129169

申请日：2018-09-12

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

Inventor： Michael W. Cumbie ,  Robert N.K. Browning

IPC: G01F23/22 ,  G01F23/24 ,  B41J2/195 ,  B41J2/175 ,  H05B3/82

Abstract: In some examples, a liquid container comprises a chamber forming a volume containing a liquid, an elongated strip extending into the volume containing the liquid, the strip supported along a side of the volume such that a face of the strip adjacent the side of the volume is not opposed by the liquid, a plurality of heaters supported by the strip along the strip, and a plurality of temperature sensors supported by the strip along the strip.

公开(公告)号：US20180100753A1

公开(公告)日：2018-04-12

申请号：US15839587

申请日：2017-12-12

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

Inventor： Michael W. Cumbie ,  Robert N.K. Browning

IPC: G01F23/22 ,  H05B3/82

CPC classification number: G01F23/22 ,  B41J2/17513 ,  B41J2/17566 ,  B41J2/195 ,  G01F23/246 ,  G01F23/247 ,  G01F23/248 ,  H05B3/82

Abstract: Examples provide a series of heaters supported at different depths within the volume. A series of temperature sensors is supported at different depths within the volume. The temperature sensors output signals indicative of dissipation of heat from the heaters to indicate a level of the liquid within the volume.

公开(公告)号：US20190162576A1

公开(公告)日：2019-05-30

申请号：US16092531

申请日：2016-07-21

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

Inventor： Chien-Hua Chen ,  Michael W. Cumbie ,  Robert N.K. Browning

IPC: G01F23/24 ,  B41J2/175

Abstract: In one example in accordance with the present disclosure a liquid level sensor is described. The sensor includes a carrier and a liquid level sensing interface disposed on the carrier. The liquid level sensing interface includes a number of liquid level sensing devices disposed on an elongated strip. The number of liquid level sensing devices detect a liquid level in a liquid container. The liquid level sensing interface also includes a number of thermal isolation components formed on the elongated strip to thermally isolate adjacent liquid level sensing devices.