| Patents for F16L 41 - Branching pipes; Joining pipes to walls (8,422) |
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| 12/25/1991 | CN2091399U Vertical flow-separating three-way pipe |
| 12/25/1991 | CN1015219B Process for fixing pipes to thick-wall assemblies e.g.vessels of pressurized-water reactor by means of welding |
| 12/24/1991 | US5074526 In-line fluid flow control valve with apparatus for and method of installation in an existing fluid conduit |
| 12/24/1991 | US5074269 Anti-rotation fuel injector clip |
| 12/24/1991 | US5074155 Fitting and tube apparatus for gas emission sample container |
| 12/24/1991 | US5074026 Fluid connector |
| 12/10/1991 | US5071174 Brazed tubing connector construction and method |
| 12/04/1991 | EP0459957A1 Connector with a seal inserted on the thread of the threaded shank |
| 12/03/1991 | US5069115 Exhaust-gas removal duct formed from individual axially mutually adjacent sections for track-forming lanes |
| 12/01/1991 | CA2038174A1 Means for introducing inspection equipment in active pipelines |
| 11/26/1991 | US5067689 Transmission drain plug |
| 11/21/1991 | EP0457319A1 Sealing sleeve and its application |
| 11/19/1991 | US5065780 Method and means for connecting a branch conduit to an existing conduit |
| 11/14/1991 | DE4114394A1 Welded joint between branch pipe and main pipe - is reinforced by welded on collar and gussets whose plane is 90 deg. to axis of main pipe |
| 10/22/1991 | US5058933 Rotation and retraction-resistant manifold having integral flange |
| 10/22/1991 | US5058932 Annular clip for inflation manifold |
| 10/22/1991 | US5058620 Insertion assembly for boring a hole in a pipe |
| 10/17/1991 | WO1991016565A1 Pipe joint |
| 10/17/1991 | DE4011569A1 Pressurised fluid junction system - uses cube with several inlets and outlets and self-closing joint |
| 10/15/1991 | US5056704 Tube fitting having a saddle bead with conforming pilot |
| 10/10/1991 | DE4011308A1 Fixable connector for flexible tubing esp. for motor vehicle - has insert in housing for flexible tube or hose to provide sealed connection |
| 10/08/1991 | US5054818 Joining and connecting block between flexible elastomer material ducts |
| 10/08/1991 | US5054512 Insertion assembly for a pipe stopper |
| 10/08/1991 | CA1290363C Fuel connection |
| 10/08/1991 | CA1290361C Pipe connecting member |
| 10/02/1991 | EP0449738A1 Tapping device for supplying a semi-rigid or flexible branch pipe from a rigid primary pipe |
| 10/02/1991 | EP0444108A4 Improvements in or relating to connection fittings |
| 10/01/1991 | US5052724 Threaded swivel connector |
| 10/01/1991 | US5052431 Pipeline repair method and apparatus |
| 10/01/1991 | CA1289897C Pressure tank connector with internal crimped tank attachment |
| 09/26/1991 | DE4009098A1 Pipe holding connection - has connecting duct in middle section and space for pipes extend through |
| 09/24/1991 | US5050912 Reusable vase connection for a marine propulsion unit |
| 09/24/1991 | US5050631 Fluid diverging system |
| 09/24/1991 | CA1289327C Recoverable article |
| 09/18/1991 | EP0333729B1 A pipe coupling for connecting a branch pipe to a feed pipe |
| 09/12/1991 | DE4006906A1 Appts. to insert probe into pipe - is used with pipe contg. material under pressure, and incorporates cylinder and sealable port |
| 09/11/1991 | EP0445349A1 Hydraulic sealing device for threaded connections |
| 09/10/1991 | US5046766 Connector for corrugated tubes |
| 09/10/1991 | US5046765 Tubular fitting for connection of a branch pipe |
| 09/04/1991 | EP0444857A1 Coupling arrangements |
| 09/04/1991 | EP0444739A1 Separable fitting system for rigid pipes of hydraulic circuits |
| 09/04/1991 | EP0444108A1 Improvements in or relating to connection fittings. |
| 09/03/1991 | US5044393 Shell cutter |
| 09/03/1991 | US5044340 Fuel injectors having adapter grommet |
| 08/21/1991 | EP0442310A1 A nipple intended to cooperate with multiple coupling components |
| 08/20/1991 | US5040828 Tapping sleeve |
| 08/14/1991 | EP0441066A1 Control valve with displacement-compensating seal |
| 08/13/1991 | US5038818 Insertion assembly for a pipe completion plug |
| 08/08/1991 | WO1991011610A1 Fuel injector having adapter grommet |
| 08/06/1991 | CA2035714A1 Control valve with displacement-compensating seal |
| 07/31/1991 | EP0439090A1 Fluid connection method and assembly |
| 07/31/1991 | EP0307413B1 A method in branching off a tube |
| 07/30/1991 | CA1286934C Fuel pipe device for motor vehicles and process for producing same |
| 07/25/1991 | DE4002046A1 Connection socket for tube - has coupling section and form-ring to accommodate pressure variations |
| 07/23/1991 | US5033775 Connecting or branching device for flexible hoses |
| 07/17/1991 | EP0437317A1 Segmented coupling for pipes |
| 07/16/1991 | CA1286336C Device for joining of pipelines |
| 07/13/1991 | WO1991010857A1 A method for installing a collar and a conduit collar |
| 07/09/1991 | US5030039 Apparatus and method for installing a thermometer-receiving well within a fluid service pipe |
| 07/09/1991 | US5029879 Seal for pipe to wall junctions |
| 07/03/1991 | EP0435274A2 Tubular body having pipe joint member attached thereto |
| 07/03/1991 | CN1013052B Method for connecting pipe with pipe plate |
| 06/26/1991 | CN2079699U Spcial three-way pipe |
| 06/26/1991 | CN1052543A Three-way pipe for pilot fluid and confluence |
| 06/25/1991 | US5025670 Means for introducing inspection equipment in active pipelines |
| 06/11/1991 | US5022560 Spigot and wrench combination for a beverage dispenser |
| 06/11/1991 | US5022421 Fluid connection method and assembly |
| 06/11/1991 | CA1284805C Hose coupling |
| 06/06/1991 | DE3939599A1 Plastics branch pipe and concrete sewer - are connected by joint sealed with two-component adhesive applied by hand |
| 06/05/1991 | EP0429904A1 Device for piercing a line |
| 05/29/1991 | EP0429411A2 Teed valve |
| 05/29/1991 | EP0428557A1 Connection to a pressure vessel of composite material |
| 05/29/1991 | CN2077946U Valves with multi-connecting pipe |
| 05/28/1991 | US5018548 Segmented coupling for pipes |
| 05/16/1991 | WO1991006801A1 Method and device to enable sealed fitting of devices to a pressurized tube |
| 05/15/1991 | EP0427660A2 Hydraulic fitting locks |
| 05/15/1991 | EP0427453A1 Cutting apparatus |
| 05/15/1991 | EP0426871A1 Method of repairing live pipe at joint of existing gas pipes |
| 05/02/1991 | EP0424593A1 Connector for an extraction system |
| 04/30/1991 | US5011114 Control valve with displacement-compensating seal |
| 04/23/1991 | CA1283371C Pressure vessel with an improved sidewall structure |
| 04/04/1991 | DE3931609A1 Flexible connection between free-standing base and rotatable object - uses flexible line rotated at half angular rotation of rotatable element |
| 04/03/1991 | EP0420732A1 Trickle irrigation device with branch couplings |
| 03/30/1991 | CA2026085A1 Point irrigation apparatus with branch connections |
| 03/26/1991 | US5002317 Internal expansion coupling device |
| 03/19/1991 | US5000490 Adapter fitting |
| 03/19/1991 | US5000489 Service saddle |
| 03/12/1991 | US4998754 Drainpipe joint |
| 03/06/1991 | EP0415260A1 Heating and/or boiler distributor |
| 03/05/1991 | US4997215 Concrete pipe adaptor and method of making |
| 03/05/1991 | US4997212 Internal expansion pipe coupling member |
| 03/05/1991 | US4996961 For an internal combustion engine |
| 02/21/1991 | DE3925293A1 Detachable connection for pipe with plug - is for pressurised medium, and has holder groove, attachment, seal, deflecting groove, and holder ring and plate |
| 02/19/1991 | US4993722 Apparatus and method for improved pipe to manhole sealing |
| 02/19/1991 | US4993454 Piping branch structure |
| 02/12/1991 | US4991858 Connector seal |
| 02/12/1991 | CA1280106C Method of manufacture of manifolds and manifold provided by such method |
| 02/07/1991 | DE4022770A1 Plastics protective cap on pipe socket - has thickened portion with inner face at same angle as plug end chamfer |
| 01/24/1991 | WO1990002901A3 Pressure hose with matching hose drum and matching coupling piece |
| 01/23/1991 | EP0409404A2 High pressure tube atachment mechanism |