US 11,718,097 B2
Ink refill container
Noriyuki Fukasawa, Matsumoto (JP); and Hiroyuki Kawate, Hokuto (JP)
Assigned to SEIKO EPSON CORPORATION, Tokyo (JP)
Filed by SEIKO EPSON CORPORATION, Tokyo (JP)
Filed on Jan. 18, 2022, as Appl. No. 17/577,459.
Claims priority of application No. 2021-006223 (JP), filed on Jan. 19, 2021; and application No. 2021-152990 (JP), filed on Sep. 21, 2021.
Prior Publication US 2022/0227137 A1, Jul. 21, 2022
Int. Cl. B41J 2/175 (2006.01)
CPC B41J 2/17506 (2013.01) [B41J 2/17596 (2013.01)] 5 Claims
OG exemplary drawing
 
1. An ink refill container comprising:
a bottle configured to store ink; and
a cap detachably attached to the bottle, wherein
the bottle includes: an ink outlet forming portion that has a tubular ink outlet and an outer peripheral portion having a first screw thread; and a valve that is in the ink outlet and has a valve member,
the cap includes: a tubular trunk that has a first inner peripheral portion having a second screw thread configured to engage with the first screw thread; a top portion that faces the ink outlet with the cap being attached to the bottle; and a projection that extends along a center axis of the trunk,
the projection is configured to move toward the valve and push the valve member to open the valve when the cap is rotated in a first direction in which engagement between the first screw thread and the second screw thread is cancelled, and
the projection is configured to relatively rotate in the first direction and move away from the valve member to close the valve when the cap is rotated in a second direction in which engagement between the first screw thread and the second screw thread is established.