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. 05, 2026
Filed:
Aug. 04, 2022
Gardner Denver Ltd, West Yorkshire, GB;
Abel Justin Lord, Stowmarket, GB;
GARDNER DENVER LTD., West Yorkshire, GB;
Abstract
A drain valve for a pressurised fluid chamber comprises a collection chamber for collecting pressurised fluid from the pressurised fluid chamber; a vent chamber for venting the pressurised fluid from the collection chamber; a master valve between the collection chamber and the vent chamber; and a slave valve between the pressurised fluid chamber and the collection chamber. The master valve is configured to open the slave valve when the master valve is closed, and to close the slave valve when the master valve is open. The master valve is configured to open the slave valve to allow pressurised fluid from the pressurised fluid chamber to enter the collection chamber, and configured to close the slave valve to allow pressurised fluid from the collection chamber to enter the vent chamber. The master valve and the slave valve cannot be shut at the same time.