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Class Information
Number: 4/328
Name: Baths, closets, sinks, and spittoons > Flush closet > Tank and bowl with plural connections, one being pneumatic
Description: Subject matter wherein there is more than one pipe between the tank and bowl, one being for gas or air.

Patents under this class:

Patent Number Title Of Patent Date Issued
8196231 Pressurized trap water saver toilet Jun. 12, 2012
8141179 Water saver toilet with uniform water spot Mar. 27, 2012
8127376 Water closet comprising variable soil exhaust system Mar. 6, 2012
7594282 Western-style toilet facility Sep. 29, 2009
7159251 Water saver flush system Jan. 9, 2007
6651266 Flushing method of toilet, toilet used for carrying out said method and components thereof Nov. 25, 2003
6131211 Low profile vacuum toilet Oct. 17, 2000
5926860 Low profile vacuum toilet Jul. 27, 1999
5694652 Flushing system Dec. 9, 1997
5579542 Toilet with water saving, vacuum-assisted flushing apparatus and associated methods Dec. 3, 1996
5487193 Enhanced operation toilet Jan. 30, 1996
5426794 Vacuum assisted toilet with controlled vacuum Jun. 27, 1995
5404597 Vacuum assist toilet trap Apr. 11, 1995
5386596 Water saver toilet Feb. 7, 1995
5142712 Vacuum assisted toilet Sep. 1, 1992

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