Liquid Filter With A Non-Return Valve In The Filtered Side Flow Channel
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Dec 24, 2009
app pub date -
May 10, 2007
filing date -
May 10, 2006
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
Disclosed is a liquid filter for an internal combustion engine. The filter has a housing, a removable cover for closing the housing, and a replaceable filter insert that has a filter surface through which liquid can flow. The filter surface defines a boundary between a flow channel on the filtered side and a flow channel on the unfiltered side of the filter. A non-return valve allows the liquid to flow through the filter at pressure conditions that prevail when the engine is running. When the engine is shut off, the non-return valve prevents flow of liquid through the filter, thereby holding within the filter housing the liquid that was in the filter when the engine was shut off. The non-return valve is placed in the flow channel on the filtered side.
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