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Class Information
Number: 285/284.1
Name: Pipe joints or couplings > With access opening
Description: Subject matter including an opening with a closure or having one or more separable parts which permit access to the interior thereof without disassembly of the joint.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6926807 |
Insulated transition spool apparatus |
Aug. 9, 2005 |
| 6913291 |
Threaded hose-in-hose coupler |
Jul. 5, 2005 |
| 6712400 |
Coupling member for use in fluid control apparatus and method of fabricating same |
Mar. 30, 2004 |
| 6682102 |
Hose-in-hose coupler |
Jan. 27, 2004 |
| 6231704 |
Apparatus for on-site installation of air duct system |
May. 15, 2001 |
| 5913544 |
Hinge system for a bracket system |
Jun. 22, 1999 |
| 5857715 |
Pipeline branch arrangement |
Jan. 12, 1999 |
| 5758908 |
Oil cooler with improved coolant hose connection |
Jun. 2, 1998 |
| 5752690 |
Threaded coupling and pig injector valve |
May. 19, 1998 |
| 5738386 |
Lightweight pipe clamp |
Apr. 14, 1998 |
| 5141256 |
Double containment pipe assembly access housing |
Aug. 25, 1992 |
| 5058214 |
Drain trap apparatus |
Oct. 22, 1991 |
| 4789188 |
Swivel or rotating joints |
Dec. 6, 1988 |
| 4163572 |
Transition fitting |
Aug. 7, 1979 |
| 4040449 |
Oil-tight lay-in duct |
Aug. 9, 1977 |
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