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:
Oct. 20, 2026
Filed:
Apr. 23, 2024
Cosmo Instruments Co., Ltd., Tokyo, JP;
COSMO INSTRUMENTS CO., LTD., Tokyo, JP;
Abstract
A leak tester that includes a master container, a master side air circuit (master side), a work container, a work side air circuit (work side), a first valve, a second valve, a flow rate control valve, and a differential pressure gauge. A reference product is stored in the master container. A target product is stored in the work container. A first valve controls pressure air which is supplied to the master side and the work side. A second valve connects the master side and the work side with an outside. A flow rate control valve controls an amount of air, the air being emitted from the master side and the work side to the outside or being injected into the master side and the work side from the outside. A differential pressure gauge measures pressure difference between the master side and the work side.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile