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:
Jul. 01, 2025
Filed:
Dec. 21, 2022
Seiko Epson Corporation, Tokyo, JP;
Makoto Sawadaishi, Shiojiri, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A flow path switching unit includes a rotary valve configured to rotate, a housing including a contact surface with which the rotary valve comes into contact, and a pressing member configured to press the rotary valve against the contact surface. The housing includes a first flow path that opens to the contact surface, a second flow path that opens to the contact surface, and a third flow path that opens to the contact surface. The rotary valve includes an elastic portion configured to come into contact with the contact surface and including a recessed portion facing the contact surface. The rotary valve is configured to switch between a state in which the recessed portion faces the first flow path and the second flow path, and a state in which the recessed portion faces the first flow path and the third flow path by rotation of the rotary valve.