Filter element
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 21, 2006
Issued Date -
N/A
app pub date -
Nov 20, 1998
filing date -
Nov 25, 1997
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A filter element in which several layers (2, 3, 5, 7, 8) made of a filtering medium are joined contiguously in the direction of flow with at least one layer (2, 7) made of a filtering medium with a high storage capacity and a low degree of separation being arranged on the in-flow side and at least one layer (3, 8) made of a filtering medium with a low storage capacity and a high degree of separation being arranged on the out-flow side. Preferably the in-flow filtering medium is made of a filter paper containing cellulose or of a melt-blown material, and the out-flow side filtering medium is produced from a filter paper containing cellulose.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully