Gas separation – Flexible or collapsible bag type – Valved – self-closing – or apparatus contained bag closing means
Reexamination Certificate
2011-08-23
2011-08-23
Smith, Duane (Department: 1776)
Gas separation
Flexible or collapsible bag type
Valved, self-closing, or apparatus contained bag closing means
C055S369000, C055S381000, C055S382000, C055SDIG020, C015S347000, C156S062600, C156S260000, C156S266000, C156S554000
Reexamination Certificate
active
08002862
ABSTRACT:
Described is a filter bag for a vacuum cleaner which may include a tubular bag with a closed free end area and an opposed, at least partially closed area as well as with a retaining plate. The bag is made from a bag material having at least one non-woven layer, and the at least partially closed area is folded forming a bottomPlies of the bag material which lie the one above the other are formed in areas, and is at least partially closed by a weld seam extending centrally in the bottom, the plies of the bag material which lie the one above the other being at least partially connected to one another.
REFERENCES:
patent: 3333523 (1967-08-01), Terzuoli
patent: 3616621 (1971-11-01), Fesco et al.
patent: 3738091 (1973-06-01), Fesco
patent: 3751881 (1973-08-01), Hughes
patent: 3755993 (1973-09-01), Cote
patent: 3916770 (1975-11-01), Hanson et al.
patent: 4155727 (1979-05-01), Kaulig
patent: 6009925 (2000-01-01), Hall et al.
patent: 6045595 (2000-04-01), Freudenberg
patent: 6071322 (2000-06-01), Hulthen
patent: 6156086 (2000-12-01), Zhang
patent: 6193773 (2001-02-01), Schlor et al.
patent: 6251154 (2001-06-01), van Rossen
patent: 6379409 (2002-04-01), Dijkman
patent: 6514325 (2003-02-01), Cox et al.
patent: 6872233 (2005-03-01), Smithies et al.
patent: 7115151 (2006-10-01), Smithies et al.
patent: 7254865 (2007-08-01), Bosses
patent: 7611555 (2009-11-01), Wattenberg et al.
patent: 2003/0168144 (2003-09-01), Weaver et al.
patent: 14 34 764 (2003-08-01), None
patent: 77 10 874 (1977-08-01), None
patent: 38 12 849 (1989-10-01), None
patent: 100 64 608 (2002-04-01), None
patent: 0 338 479 (1989-10-01), None
patent: 0 813 839 (1997-12-01), None
patent: 1 002 493 (2000-05-01), None
patent: 1 059 056 (2000-12-01), None
patent: 1 192 890 (2002-04-01), None
patent: 11 332 802 (1999-07-01), None
patent: 2003 / 200506 (2003-07-01), None
patent: 01 / 03802 (2001-01-01), None
Eurofilters N.V.
Fay Kaplun & Marcin LLP
Pham Minh-Chau T
Smith Duane
LandOfFree
Filter bag and method for the production thereof does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Filter bag and method for the production thereof, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Filter bag and method for the production thereof will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2760349