Modular system for putting together different sized filter elements

US6620316B1 · kind B1 · utility

Assignee

• HYDAC FILTERTECHNIK GMBH · DE

Inventors

• Michael Sakraschinsky · Sankt Ingbert, DE
• Stefan Hennes · Neunkirchen (Saar), DE

Key dates

• Filing date: Feb 15, 2001
• Grant date: Sep 16, 2003
• Expiry date: Feb 15, 2021

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S277/918
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A modular system for putting together different sized filter elements, especially filter elements having different lengths, more particularly filter devices for hydraulic fluids, comprising a support tube that defines an inner cavity in the corresponding filter element, said tube being surrounded by a filter mat that is substantially cylindrical and that matches the different dimensions and having passages to let the fluid pass through. The filter elements also contain at least one coupling member enabling connection on the end side of a corresponding support tube to an additional support tube having a location on the end side for interacting with and locking on the coupling member. Each coupling member is embodied as an attachment plug element with a crown consisting of interspaced tabs extending in axial direction and hooks for snapping on the location of the attached support tube.