153395 ⎘
Devices or appurtenances for use in, or in connection with, pipes or pipe systems; Means for stopping flow from or in pipes or hoses by introducing into the pipe a member expandable introduced radially into the pipe or hose
SEALING PLUG ASSEMBLIES, SEALING ELEMENTS, AND BLEED LANCES FOR LINE STOPPING A PIPE AND SYSTEMS AND METHODS THEREOF
#2Sluice Valve Installation Method, and Sluice Valve Installation Structure Used in Sluice Valve Installation Method
#3SEALING PLUG ASSEMBLIES, SEALING ELEMENTS, AND BLEED LANCES FOR LINE STOPPING A PIPE AND A SYSTEMS AND METHODS THEREOF
#4ISOLATION TOOL AND METHODS OF ISOLATING A SECTION OF PIPE OR A VESSEL
#5Sealing plug assemblies, sealing elements, and bleed lances for line stopping a pipe and systems and methods thereof
#6PIPE STOPPER WITH EXPANDABLE STOPPER BODY
#7EXPANDABLE PIPE STOPPER
#8FLOW RESTRICTION SYSTEM
#9Expandable pipe stopper
#10BLOCKING DEVICE AND METHOD
#11SINGLE OR MULTI-DUROMETER ELASTOMER, SELF-ACTUATING, DYNAMIC, STRESS SUPPRESSOR FOR HOT TAPPING TOOLS
#12Isolation tool and methods of isolating a section of pipe or a vessel
#13Pipe stopper assembly
#14Pipe stopper
#15Method of using a pipe stopper
#16ACTIVATION SYSTEM FOR PIPELINE PLUG
#17Isolation tool and methods of isolating a section of pipe or a vessel
#18Pipeline isolation tool, assembly and method
#19Flow restriction system
#20Trenchless rehabilitation system for deformation of large diameter HDPE pipelines and method thereof
#21Vent pipe isolation balloon for liquefied gas storage tank and vent pipe isolation device
#22Inflatable stopper
#23Flow restriction system
#24Flow stopping tool for pipelines
#25Flow stopping tool for pipelines
#26Apparatus for blocking fluid flow through pipes
#27Launch system for underground gas main stop-off station
#28Expanding gate valve assembly with pressure equalization system
#29Device for sealing pipelines
#30Hydraulic manifold channel plug
#31Detachable system to shut off pressure flow in pipes
#32Inflatable stopper
#33Corrosion prevention apparatus and corrosion prevention method for cut faces of pipes
#34Device for sealing pipelines
#35Safety system
#36Pipeline strainer with cleaning tool
#37Device for sealing pipelines
#38Pneumatic plug clean-out tees
#39Pneumatic pressure relief test plug
#40Device for blocking a flow passage using an inflatable bag
#41SHUTTER WITH AUTOMATICALLY EXPANDING SEALING RING
#42Blocked valve isolation tool
#43Dual inflatable plug assembly
#44Low pressure hot tap pipeline isolation
#45Pipeline isolation for small bore pipe
#46Insertion and removal of inflatable pipeline flow stopper bags
#47Blocked valve isolation tool
#48Dual inflatable plug assembly
#49Inflatable closing plug for pipes
#50Resilient plug apparatus and method of use
#51Isolation tool
#52Resilient plug apparatus and method of use
#53Mechanical clean-out test plug
#54System And Method For Accessing A Pressurized Gas Pipeline
#55Block and bleed plugging tool employing seals on a pipeline exterior
#56APPARATUS FOR BLOCKING FLUID FLOW IN A PIPE LINE AND SYSTEM FOR FORMING BYPASS USING THE SAME
#57Telescoping double blocking pipe plug
#58FLUID-CROSSING GATE FOR PIPELINE AND FLUID-CROSSING METHOD USING THE SAME
#59Equalizer stopple fitting with integral pressure equalization fitting
#60Gate valve device
#61Double block and bleed plug
#62Double block and bleed plug
#63In-line swivel for inflatable plugs
#64Pipeline stop
#65Isolation tool
#66Apparatus, systems and methods for plugging a high temperature pipe
#67Cam-assisted, wedge actuated, metal-to-metal seal, block and bleed plugging tool
#68Method and apparatus for installation of a flow control valve for mounting a subterraneously positioned pipe
#69Sluicing valve device
#70Plumbing test plug and method
#71Pipe stopper assembly
#72Adjustable drain pipe test plug for arbitrary pipe wall thickness