Patent · US Expired

Filter device

US7815054B2 · kind B2 · utility

5Cited by

8References

15Claims

0Family size

Assignee

HYDAC FILTERTECHNIK GMBH · DE

Inventors

Volkmar Klein · Schneeberg, DE
Nobert Sann · Riegelsberg, DE

Key dates

Filing date	Sep 29, 2004
Grant date	Oct 19, 2010
Priority date	—
Expiry date	Mar 8, 2025

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01D2201/4023
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A filter device includes at least one filter element (10) housed in a filter housing (22) and connected for the flow of fluid by fluid connections (30, 36) to a fluid device, in particular in the form of a hydraulic tank (40), using a connector device (44). A plunger valve arrangement is achieved, whereby the connector device (44) is provided with at least one longitudinally-displaceable blocking piece (46). In the blocking position, the blocking piece blocks the provided fluid connections (30, 36). After displacement into an open position, it releases the fluid connections. A blocking or releasing of the fluid connections in a rapid operation process is permitted to carry out a filter element exchange for the used filter medium.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.