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Class Information
Number: 285/22
Name: Pipe joints or couplings > With assembly means or feature > Molded joint facilitator > Spacing means (e.g., lugs)
Description: Subject matter comprising spacing means to position the pipe ends properly for the joining operation.










Patents under this class:

Patent Number Title Of Patent Date Issued
8485560 Welding spacer Jul. 16, 2013
7857016 Plastic adapter for fuel tank Dec. 28, 2010
7067032 Tubular coupling element for producing a glued joint with a fluid line Jun. 27, 2006
6918617 Self-centering soldered feed-through Jul. 19, 2005
6568711 Self gapping socket weld fittings May. 27, 2003
6471249 Adjustable pipe connector Oct. 29, 2002
6059320 Compressible pipe spacer used in welding May. 9, 2000
5984370 Corrosion barrier with antibacterial protection for pipe connections Nov. 16, 1999
5961154 Fume duct joint with clamping collar Oct. 5, 1999
5915737 Compressible pipe spacer used in welding Jun. 29, 1999
5848811 Apparatus for solvent bonding non-porous materials to automatically create variable bond charteristics Dec. 15, 1998
5566984 Cylindrical corrosion barrier for pipe connections Oct. 22, 1996
5564752 Apparatus for solvent bonding non-porous materials to automatically create variable bond characteristics Oct. 15, 1996
5547228 Cylindrical corrosion barrier for pipe connections Aug. 20, 1996
5532459 Welding sleeve of thermoplastic material Jul. 2, 1996
5507528 Method of braze joint fastening for male to female receptacles Apr. 16, 1996
5460413 Method and apparatus for solvent bonding non-porous materials to automatically create variable bond characteristics Oct. 24, 1995
5380048 Tube joint Jan. 10, 1995
5375889 Electrofusion joint and hot water supply header using the same Dec. 27, 1994
5366253 Electrofusion joint and hot water supply header using the same Nov. 22, 1994
5346261 Coupled pipe assembly having a tapered interior sleeve Sep. 13, 1994
5251714 Method for soldering pipe end and counter member Oct. 12, 1993
5125690 Pipe joining system and method Jun. 30, 1992
5087308 Method of connecting pipes of plastics material of a double pipe system Feb. 11, 1992
4913465 Coupled pipe assembly Apr. 3, 1990
4894521 Electric heating element for fusing thermoplastic materials Jan. 16, 1990
4794653 Base for elevating a toilet Jan. 3, 1989
4728126 Weld joint Mar. 1, 1988
4674772 Soluble pipe spacer Jun. 23, 1987
4652019 Partially consumable spacer chill ring Mar. 24, 1987
4649641 Connector fitting with an electrical heating wire Mar. 17, 1987
4631759 Base having removable side rails for elevating a toilet Dec. 30, 1986
4611830 Partially consumable spacer chill rings and their use in welding pipe joints Sep. 16, 1986
4593938 Welding ring Jun. 10, 1986
4541656 Cast metal outlet fitting Sep. 17, 1985
4505420 Welding spacer Mar. 19, 1985
4346918 Pipe spacer used in welding Aug. 31, 1982
4335906 Weldable joint Jun. 22, 1982
4256333 Solvent-bonded joint Mar. 17, 1981
4228941 Method of joining an inner metal pipe with an outer surrounding metal pipe Oct. 21, 1980
4175615 Pipe header-cylindrical tank joint and method of joining same Nov. 27, 1979
4147926 Electrical heatable muff and process for its manufacture Apr. 3, 1979
4137117 Method of making a solvent-bonded joint Jan. 30, 1979
4135739 Off-set welding ring Jan. 23, 1979
4135740 Oval bell concept Jan. 23, 1979
4094535 Conductive hose and ends Jun. 13, 1978
4062570 Mandrel for explosive welding tubular members Dec. 13, 1977
4013096 Loading and unloading valve mechanism for transportation tank Mar. 22, 1977
4009066 Method of manufacturing tubular elements Feb. 22, 1977
3957289 Soldered joint and method May. 18, 1976











 
 
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