Filter unit and process for manufacturing a filter unit
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 19, 1998
Grant Date -
N/A
app pub date -
Jan 30, 1997
filing date -
Aug 9, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A self-supporting filter unit having at least one passage (10) defined by wall portions (12) made from air-permeable fiber fabric, through which wall portions air can pass and be drawn off along the passage but which prevent the passage therethrough of dust and/or other debris carried by such air, in which the passage is closed off at one end portion and at the other end portion there is formed integral with said wall portions a rigid mounting portion (16) into which the passage (10) opens whereby the filter unit can be supported as part of a filter assembly, wherein the mounting portion (16) includes a first reinforcing portion (18) of material around and secured with said fabric of the wall portion parts of the first reinforcing portion and fabric integral therewith remote from said one end being outwardly flanged, and wherein the mounting portion (16) further includes a second reinforcing portion (20,21) of material positioned over the outwardly flanged portions and secured thereto, said second reinforcing portion having an aperture (19,23) formed therein corresponding to the open end of the passage (10).
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
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