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Class Information
Number: 285/134.1
Name: Pipe joints or couplings > U-type (e.g., return bend)
Description: Subject matter comprising a pipe coupling having parallel leg portions which are connected by a bight or "U" shaped section.

Sub-classes under this class:

Class Number Class Name Patents
285/135.1 Detachable 6

Patents under this class:

Patent Number Title Of Patent Date Issued
8672038 Retrievable subsea bridge tree assembly and method Mar. 18, 2014
8382993 Drain filter apparatus and method Feb. 26, 2013
8094853 Speaker system and fitting device Jan. 10, 2012
7857968 High performance sewer system Dec. 28, 2010
7717474 Pipe coupling adaptor May. 18, 2010
7147252 Medical connector Dec. 12, 2006
7044155 Joint-type coaxial connection May. 16, 2006
7004508 Flexible drain element Feb. 28, 2006
6859956 P-trap for plumbing drainage systems Mar. 1, 2005
6851722 Coupled circulation tube for ball screw unit Feb. 8, 2005
6712400 Coupling member for use in fluid control apparatus and method of fabricating same Mar. 30, 2004
6588803 Extendible p-trap dishwasher waste port Jul. 8, 2003
6557255 Method of constructing a transfer panel assembly May. 6, 2003
6254143 Transfer panel assembly and method of construction Jul. 3, 2001
6125891 Refractory u-bends and methods of manufacture Oct. 3, 2000
5944985 Reject water drain line installation system and apparatus for under sink reverse osmosis filter system Aug. 31, 1999
5901731 Reverse osmosis drain coupling and method of installing May. 11, 1999
5058214 Drain trap apparatus Oct. 22, 1991
4986732 Steam turbine crossover piping with reduced turning losses Jan. 22, 1991
4728128 Connection assembly for joining two parts Mar. 1, 1988
4335907 Meter connection apparatus Jun. 22, 1982
4186798 Tubular cooled members of metallurgical furnace Feb. 5, 1980
3977706 Pipe elbow Aug. 31, 1976
3957289 Soldered joint and method May. 18, 1976

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