公开(公告)号：US20170312750A1

公开(公告)日：2017-11-02

申请号：US15650599

申请日：2017-07-14

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

Inventor： Dennis R. ESTERBERG ,  Frank D. DERRYBERRY ,  Richard W. SEAVER ,  Christie DUDENHOEFER

IPC: B01L3/00 ,  B41J2/175

CPC classification number: B01L3/527 ,  B01L3/52 ,  B01L2200/16 ,  B41J2/1752 ,  B41J2/17553

Abstract: A slot extender includes a reservoir. The reservoir includes a reservoir floor defining a drain opening, a continuous reservoir sidewall extending from the reservoir floor, and a concave fillet running along at least a portion where the reservoir sidewall joins the reservoir floor. The concave fillet has a variable radius.

公开(公告)号：US20210402786A1

公开(公告)日：2021-12-30

申请号：US16959375

申请日：2019-10-25

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

Inventor： James Michael GARDNER ,  Sirena LU ,  Frank D. DERRYBERRY ,  Michael W. CUMBIE

IPC: B41J2/175

Abstract: A liquid level sensor package for a replaceable print liquid reservoir, the package including a number of heater circuits, each heater circuit including a heater element to dissipate heat and a number of control devices, each control device individually controllable to be electrically connected to the heater element, the heater element to dissipate a different amount of heat when electrically connected to different ones of the control devices.