Filtering medium of oil filter for automatic transmission
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Jul 29, 2004
app pub date -
Oct 27, 2003
filing date -
Apr 27, 2001
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A filter element (30) which has a filtering medium (31) formed by ruffling a fiber sheet and a resin frame (32) surrounding the perimeter of the filtering medium (31); and a filtering medium (31) which comprises a fiber sheet comprising a heat-resistant fiber having a melting temperature or a carbonization temperature of 300.degree. C. or higher. As the heat-resistant fiber, use can be made of a meta-type or para-type wholly aromatic polyamide fiber, a wholly aromatic polyester fiber, a polyphenylene sulfide fiber, or a polyamideimide fiber. As a fiber constituting the fiber sheet except the heat-resistant fiber, use can be made of a fiber having a softening point of 150.degree. C. or higher such as a polyamide based fiber, a polyester based fiber, an acrylic fiber, or a vinylon fiber. Preferably, the heat-resistant fiber accounts for 3 mass % or more of the fiber sheet The filtering medium is suppressed in the reduction of bursting strength during use and causes no substantial problems in practical use.
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