The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 08, 2025
Filed:
Jan. 05, 2022
Hewlett-packard Development Company, L.p., Spring, TX (US);
Shinhyup Kang, Seongnam Si, KR;
Yongnam Ahn, Seongnam Si, KR;
Jinhwa Hong, Seongnam Si, KR;
Junhui Kim, Seongnam Si, KR;
Hewlett-Packard Development Company, L.P., Spring, TX (US);
Abstract
A toner refill cartridge includes a housing having an opening; a toner storage portion arranged inside the housing and to store a toner; a toner discharge portion at an end of the toner storage portion and to discharge the toner; a pump including a variable volume member capable of retracting and expanding, the pump to provide pressure, through a volume change of the variable volume member, for discharging the toner; a driving force input portion rotatable by a driving force received from outside; and a driving force transmission portion to receive a rotational force of the driving force input portion, convert the rotational force into driving force for changing a volume of the variable volume member, and transmit the driving force to the pump.