Filter drain with spring enclosure
AssigneeFirma Ing. Walter Hengst GmbH & Co. KG
InventorsHeiko Schumann, Gerhard Wiemeyer
Life of this patent
Estimating the term…
Abstract
A fluid filter for liquid media with a removable filter insert and a drain opening having a spring-loaded closure element associated therewith. The closure element is held by the filter insert in a closing position that seals the drain opening, and separates from the drain opening when the filter insert is loosened or is removable. The spring is designed as an elongated spring having a U-shaped design.
Claims9
Fluid filter for fluid media with a removable filter insert and having a filter housing defining a drain opening, said fluid filter comprising a spring-loaded closure element, said closure element capable of being held by the filter insert by spring action in a closure position that closes the drain opening and which, when the filter insert is loosened or removed, moves clear of the drain opening, said closure element being designed as an elongate spring element being essentially U-shaped with first and second legs, said first leg being located for sealing the drain opening and said second leg being located so as to come in contact with the filter insert thereby applying force to said first leg.
Dependencies are inferred from the claim text.