US Patent No. 9,278,540

LIQUID STORAGE CONTAINER AND LIQUID EJECTION APPARATUS


Patent No. 9,278,540
Issue Date March 08, 2016
Title Liquid Storage Container And Liquid Ejection Apparatus
Inventorship Masafumi Seki, Kawasaki (JP)
Naozumi Nabeshima, Tokyo (JP)
Koichi Kubo, Yokohama (JP)
Kazuya Yoshii, Yokohama (JP)
Assignee CANON KABUSHIKI KAISHA, Tokyo (JP)

Claim of US Patent No. 9,278,540

1. A liquid storage container comprising:
a housing member having a space therein;
a defining member attached to a wall surface inside the housing member to define the space and including a flexible member
having flexibility;

a liquid storage chamber provided in the space defined and capable of storing a liquid therein; and
an urging unit configured to urge the defining member in a direction in which a volume of the liquid storage chamber expands,
wherein in a position during use, an angle, on the liquid storage chamber side, as between the wall surface inside the housing
member and the defining member in a lower attachment position of the defining member to the housing member, is greater than
an angle, on the liquid storage chamber side, as between the wall surface inside the housing member and the defining member
in an upper attachment position of the defining member to the housing member.