| Patents for F16L 45 - Pipe units with cleaning aperture and closure therefor (304) |
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| 09/11/2003 | DE20220487U1 Bulk material feed pipe has curved connecting section with impact plate to deflect airflow between inlet and angled outlet |
| 09/10/2003 | CN1120943C Hook for webbing |
| 08/06/2003 | CN1434910A Fast opening and closing access door for pipes and contains |
| 07/23/2003 | EP1329661A2 Cleanable pipe for discharge system |
| 07/15/2003 | US6593531 Add-on housing |
| 06/18/2003 | EP1319263A1 Add-on housing |
| 06/04/2003 | EP1220969B1 Pipe system for device filtering and pumping water in a swimming pool |
| 05/28/2003 | EP0968374B1 Hook for webbing |
| 04/30/2003 | DE20303194U1 Siphon for especially tool machines has additional shut-off element in form of solenoid valve provided behind curved pipe section in direction of flow, and during filling of siphon is adjustable from closed position to open position |
| 02/27/2003 | US20030037951 Add-on housing |
| 01/09/2003 | DE20212078U1 Arrangement for joining two double walled pipes, in particular straight section to angled section |
| 01/07/2003 | US6503391 System of pipework for a device for filtering and pumping the water of a swimming pool basing |
| 01/02/2003 | DE20212095U1 Pipe unit with a conduit for guiding gaseous flow medium has an aperture sealed by a lid |
| 01/01/2003 | CN1389010A Add-on housing |
| 12/05/2002 | WO2002097319A1 Fast opening and closing access door for pipes and containers |
| 10/09/2002 | EP1248043A1 Closure device for a chimney cleaning aperture |
| 10/08/2002 | US6461231 Air abrasive blast line travel machine |
| 07/10/2002 | EP1220969A1 Pipe system for device filtering and pumping water in a swimming pool |
| 04/11/2002 | US20020040869 System of pipework for a device for filtering and pumping the water of a swimming pool basing |
| 04/04/2002 | DE10044791A1 Anbaugehäuse Growing housing |
| 03/14/2002 | WO2002021655A1 Add-on housing |
| 10/16/2001 | CA2165892C Plumbing cleanout cover |
| 04/19/2001 | WO2001027413A1 Pipe system for device filtering and pumping water in a swimming pool |
| 12/05/2000 | US6155609 Connector for joining protective ducts of hoses for the installation of insulated electrical conductors in an aircraft |
| 09/07/2000 | DE4129460C2 Rohrelement Tubular member |
| 07/04/2000 | US6081975 Hook for webbing |
| 05/18/2000 | WO2000028256A1 Tube section having access opening and method of forming the tube section |
| 05/04/2000 | DE19850638A1 Ventilator pipe for use in multi-story building has flap which moves under spring control to open and close a transition zone |
| 04/13/2000 | DE19858586C1 Pipe section, for waste water line, includes angled cleansing connections with disc and cleansing member |
| 04/12/2000 | CN1250509A Hook for webbing |
| 01/05/2000 | EP0968374A1 Hook for webbing |
| 05/11/1999 | US5901986 Connector for joining protective ducts or hoses for the installation of insulated electrical conductors in an aircraft |
| 09/24/1998 | WO1998041770A1 Hook for webbing |
| 09/24/1998 | CA2283060A1 Hook for webbing |
| 07/02/1998 | DE19654683A1 System for monitoring flow taking along objects especially labels in suction system |
| 06/24/1998 | EP0849852A1 Connector for a protective tubing system with access to electrical conductors laid therein in an aircraft |
| 04/29/1998 | CA2189081A1 Self-cleansing pipe fitting |
| 03/04/1998 | EP0728244B1 Access gully |
| 12/29/1997 | EP0814203A2 Drainage system |
| 12/29/1997 | EP0814202A2 Drainage system |
| 12/29/1997 | EP0814201A2 Drainage system |
| 04/30/1997 | DE19539765A1 Coupling for protective ducting for electrical cables in aircraft |
| 08/28/1996 | EP0728244A1 Access gully |
| 05/08/1996 | EP0710511A1 Air abrasive blast line travel machine |
| 04/22/1996 | CA2157138A1 Air abrasive blast line travel machine |
| 01/09/1996 | US5481790 Method for allowing selective access to the interior of fluid containment structures |
| 07/20/1995 | WO1995013434A3 Drainage system |
| 05/18/1995 | WO1995013434A2 Drainage system |
| 10/27/1994 | DE4412996A1 Abgewinkeltes Verbindungsstück für Leitungsröhren Angled connector for line pipes |
| 05/19/1993 | EP0542032A1 Cover for closing an inspection and cleansing opening in a sewage pipe |
| 11/24/1992 | US5165189 Access door for ductwork |
| 08/25/1992 | US5141017 Recreational vehicle sewage removal adapter with back-flushing capability |
| 06/25/1992 | WO1992010633A1 Access door for air flow conduits |
| 03/31/1992 | CA1298364C Conduit body assembly cover |
| 03/26/1992 | DE4129460A1 Pipe section for exhaust pipe - has hole with peripheral protrusion, lid and contact surface for it, with seals |
| 12/04/1991 | EP0459724A1 Improved drain pipe trap |
| 11/26/1991 | US5067278 Access door for air flow conduits |
| 11/25/1991 | CA2043123A1 Drain pipe trap |
| 10/17/1991 | WO1991015345A1 Waterproof and corrosion resistant concrete articles and process of preparing the same |
| 08/13/1991 | US5038816 Drain pipe trap |
| 05/21/1991 | US5016923 Erosion resistant elbow conduit |
| 04/10/1991 | CN2074851U Multi-function pipe |
| 02/26/1991 | US4995645 Elbow connection for pneumatic conveying system |
| 10/10/1990 | EP0390824A1 A form part for a ventilation ductwork system |
| 07/25/1990 | EP0379189A1 Maintenance cover for an insulated sheet-metal duct wall |
| 07/19/1990 | CA2007990A1 Manhole closure for insulated sheet metal duct walls |
| 05/01/1990 | US4921123 Debris cap |
| 01/23/1990 | CA1264782A1 Coupling device for coupling a hose to a drain pipe |
| 09/19/1989 | US4867334 Conduit body assembly cover |
| 09/05/1989 | CA1259042A1 Access door |
| 08/30/1989 | EP0329647A1 A pipe component containing a cleaning hatch |
| 06/15/1989 | WO1989005418A1 A form part for a ventilation ductwork system |
| 09/21/1988 | EP0282907A2 Cleaning conduits for waste water or sewage |
| 05/05/1988 | WO1988003244A1 A pipe component containing a cleaning hatch |
| 04/12/1988 | US4736968 Coupling device for coupling a hose to a drain pipe |
| 03/09/1988 | EP0258256A1 Access door |
| 09/23/1987 | EP0238412A1 Method and device for working at a gas conduit in operation |
| 09/11/1987 | WO1987005380A1 Access door |
| 05/26/1987 | US4667449 For a sheet metal wall |
| 02/25/1986 | US4572240 Access door construction |
| 12/17/1985 | US4559085 Method for removing spatters from a pipeline |
| 06/04/1985 | CA1188198A1 Sleeve-type fluid flow diverter |
| 04/02/1985 | US4508371 Conduit coupler |
| 11/27/1984 | US4484724 Forming element and forming apparatus for casting manhole inverts |
| 09/26/1984 | EP0119289A1 Pipe sleeve for pipelines with access supports closable by lids |
| 05/22/1984 | CA1167786A1 Clean out device |
| 05/01/1984 | US4445540 Sleeve-type fluid flow diverter |
| 03/06/1984 | CA1163188A1 Limited angle piggable swivel |
| 02/21/1984 | CA1162496A1 Raintight wireway |
| 01/17/1984 | CA1160659A1 Cleanout fitting |
| 12/27/1983 | CA1159377A1 Recoverable sleeve assembly |
| 11/08/1983 | US4413654 Clean out device |
| 06/14/1983 | US4387900 Method and apparatus for providing watertight seal for manhole pipe connection |
| 05/04/1983 | EP0077880A1 Sleeve-type fluid flow diverter |
| 12/07/1982 | US4362325 Limited angle piggable swivel |
| 11/30/1982 | CA1136664A1 Pipe expansion seal |
| 11/23/1982 | US4360041 Cleanout fitting |
| 05/26/1981 | US4269230 Closure member |
| 01/01/1980 | US4181330 Horn shaped multi-inlet pipe fitting |
| 12/19/1978 | CA1044622A1 Cleanout fitting combination |