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:
May. 26, 2026
Filed:
Nov. 02, 2021
Pigeon Corporation, Chuo-ku, JP;
Tatsuyuki Ishikawa, Chuo-ku, JP;
Pigeon Corporation, Tokyo, JP;
Abstract
Provided are a valve member and a milking machine that are easy to wash. The valve member enables an internal passage to temporarily retain milk when the milking machine is in a negative pressure state, and enables the milk retained in the internal passage to be discharged when the milking machine is in a normal pressure state. The valve member is provided with a cap that is attached to the milking machine. The cap is provided with a partition wall that separates a first space on the milk inflow side and a second space on the milk outflow side. A through hole in the partition wall allows communication between the first space and the second space. A valve body disposed in the second space closes the through hole when the negative pressure state is established, and opens the through hole when the normal pressure state is established.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile