Patent · US Expired

Filter device, particularly intake air filter device for combustion engines

US5238476A · kind A · utility

40Cited by

16References

6Claims

0Family size

Assignee

AB Volvo · SE

Inventors

Per Svensson · Örkelljunga, SE
Sten Klippare · Göteborg, SE

Key dates

Filing date	Feb 21, 1992
Grant date	Aug 24, 1993
Priority date	—
Expiry date	Feb 21, 2012

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01D46/64
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A filter device, especially an intake air filter for internal combustion engines, comprises a cylindrical filter housing (1) with inlet and outlet openings (7, 6) for the medium. In the outlet opening, the pipe stub (11) is fixed with the aid of an elastic sleeve (12). The pipe stub is solidly joined to a secondary or safety filter (20) which extends within a main filter (2), which has a radial seal (17) which seals against a portion (11a) of the pipe stub extending into the housing.

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