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:
Dec. 16, 2025
Filed:
Oct. 30, 2023
The Protectoseal Company, Bensenville, IL (US);
Daomin Hong, Flintshire, GB;
Lewis Bingham, Flintshire, GB;
THE PROTECTOSEAL COMPANY, Bensenville, IL (US);
Abstract
A valve apparatus [] for connection to a tank or pipe, the valve apparatus[] comprises a housing [], a first opening [] and a second opening [] communicating with respective first conduit [] and second conduit [] each for providing ingress and egress of fluid into and out of the housing [] through the first opening [] and the second opening [], and discrete first and second valve means or valves [] which are spaced apart from one another, the first and second valve means or valves [] selectively controlling fluid flow between the first and second conduits [], wherein, in use, the principal flow axes along the first conduit [] and second conduit [] are parallel and opposed, the first valve means or valve [] is configured to open when the pressure in the first conduit [] is greater than a first pressure and the second valve means or valve [] is configured to open when the pressure in the first conduit [] is less than the first pressure.