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Class Information
Number: 285/4
Name: Pipe joints or couplings > Frangible element > Score line or groove
Description: Subject matter including score lines or grooves whereby the size or angle of a piece may be varied prior to assembly by cutting or breaking along the line or groove.










Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
8608206 Pipe-sealing collar Dec. 17, 2013
8505633 Weakpoint coupling of selectively adjustable load bearing capacity Aug. 13, 2013
8485561 Combined structure used for air-conditioning ventilation Jul. 16, 2013
8397711 Solar collector Mar. 19, 2013
8172273 Sealing arrangement for a coupling for refrigerant lines May. 8, 2012
8162582 Threaded connection piece Apr. 24, 2012
8066024 Emergency shutoff valve for use in a fuel dispensing system Nov. 29, 2011
8020576 Emergency shutoff valve for use in a fuel dispensing system Sep. 20, 2011
7967072 Logging head release mechanism Jun. 28, 2011
7963565 System with adapter for cleaning medical appliances Jun. 21, 2011
7900967 Engine fitting and method of assembling vehicles Mar. 8, 2011
7578308 Emergency shutoff valve for use in a fuel dispensing system Aug. 25, 2009
7472912 Tear-out coupling and water line Jan. 6, 2009
7467643 Fitting for fuel tanks Dec. 23, 2008
7316423 Fitting and pipe section for jetted bath heaters Jan. 8, 2008
7121557 Self-sealing pass-through plate Oct. 17, 2006
7100696 Disconnect for use in a wellbore Sep. 5, 2006
7097209 Sterile coupling Aug. 29, 2006
7080486 Pass-through firestop device Jul. 25, 2006
6799606 Drainage pipe covering kit for use during building or floor construction Oct. 5, 2004
6796478 Fuel cell adapter system for combustion tools Sep. 28, 2004
6739628 Frangible hose connector May. 25, 2004
6739631 Torque-limiting bolt-and-nut assembly May. 25, 2004
6694684 Pass through firestop device Feb. 24, 2004
6659126 Backflow preventor with adjustable outflow direction Dec. 9, 2003
6595243 Swimming pool plumbing water/debris barrier device and method Jul. 22, 2003
6582655 Insulation coverage system and method for inhibiting biological contamination Jun. 24, 2003
6565125 Coupling assembly for joining plastic and metal pipes May. 20, 2003
6520212 Protective end cap for tube end Feb. 18, 2003
6467506 Cooling system fully visible tester Oct. 22, 2002
6460860 Pipe seal for cast concrete Oct. 8, 2002
6457896 Breakaway coupling Oct. 1, 2002
6443495 Multiple level floor flange apparatus and associated method Sep. 3, 2002
6394992 Aseptic connection device May. 28, 2002
6378549 Fuel tank Apr. 30, 2002
6328344 Pipe fitting with improved fitting checker Dec. 11, 2001
6322108 Pipe fitting Nov. 27, 2001
6308734 Dry running coolant union Oct. 30, 2001
6257625 Flexible joint and long nut for flexible joint Jul. 10, 2001
6254140 Segmented flange including a shim Jul. 3, 2001
6206430 Connector and attachment mechanism for a lumen Mar. 27, 2001
6161873 Masonry lead-in fixture Dec. 19, 2000
6145887 Device for fast connection of a tube to a rigid element with anti-extraction ring and safety seal Nov. 14, 2000
6145886 Pipe connector connection checking assembly Nov. 14, 2000
6102626 Caisson wellhead system and method of installing the same Aug. 15, 2000
6088972 Concrete floor insert Jul. 18, 2000
6079897 Releasable lock for bearing assembly Jun. 27, 2000
6029981 Tube plug seal Feb. 29, 2000
5975585 Pipe coupling device Nov. 2, 1999
5954345 Grommet for transmission oil fill tube Sep. 21, 1999

1 2 3 4










 
 
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