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Class Information
Number: 285/179.1
Name: Pipe joints or couplings > Elbow > With access opening
Description: Subject matter having an opening with a closure or having one or more separable parts, which permit access to the interior thereof without disassembly of the joint.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6799608 |
Bent pipe and a method for preparing thereof |
Oct. 5, 2004 |
| 6694827 |
Fluid coupling with a torque indication device |
Feb. 24, 2004 |
| 6637777 |
Low-profile conduit elbow |
Oct. 28, 2003 |
| 6247869 |
Tubing connector |
Jun. 19, 2001 |
| 6161876 |
Elbow connection for tubular manifold for a motor vehicle air-conditioning condenser |
Dec. 19, 2000 |
| 6155609 |
Connector for joining protective ducts of hoses for the installation of insulated electrical conductors in an aircraft |
Dec. 5, 2000 |
| 6074130 |
Inside drop system for manholes |
Jun. 13, 2000 |
| 5901986 |
Connector for joining protective ducts or hoses for the installation of insulated electrical conductors in an aircraft |
May. 11, 1999 |
| 5758908 |
Oil cooler with improved coolant hose connection |
Jun. 2, 1998 |
| 5676404 |
Low profile flanged tee |
Oct. 14, 1997 |
| 5590916 |
Renewable wear-proof elbow with a detachable buffer chamber |
Jan. 7, 1997 |
| 5533763 |
Elbow with access opening |
Jul. 9, 1996 |
| 5398976 |
Connecting device for pipe assemblies |
Mar. 21, 1995 |
| 5060984 |
Short radius, low wear elbow |
Oct. 29, 1991 |
| 5016924 |
Joint elbow assembly for wiring |
May. 21, 1991 |
| 5016923 |
Erosion resistant elbow conduit |
May. 21, 1991 |
| 4995645 |
Elbow connection for pneumatic conveying system |
Feb. 26, 1991 |
| 4736968 |
Coupling device for coupling a hose to a drain pipe |
Apr. 12, 1988 |
| 4508371 |
Easy access pulley box |
Apr. 2, 1985 |
| 4387914 |
Short radius, low wear elbow |
Jun. 14, 1983 |
| 4239602 |
Ascension pipe elbow lid for coke ovens |
Dec. 16, 1980 |
| 4181330 |
Horn shaped multi-inlet pipe fitting |
Jan. 1, 1980 |
| 3967324 |
Flexible trap for a waste line assembly |
Jul. 6, 1976 |
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