152605 ⎘
Auxiliary closure means in valves, which in case of repair, e.g. rewashering, of the valve, can take over the function of the normal closure means; Devices for temporary replacement of parts of valves for the same purpose an auxiliary valve being actuated independently of the main valve
Sub-classes:TUBING RETRIEVABLE SAFETY VALVE ASSEMBLY WITH SECONDARY FLAPPER AND SEAT
#2Valve removal plug with quick latch connection
#3Tubing retrievable safety valve assembly with secondary flapper and seat
#4ARRANGEMENT WITH A VALVE
#5Backflow prevention and method of manufacture
#6PLUMBING FITTING
#7Plumbing fitting
#8Backflow prevention and method of manufacture
#9VALVE REPLACEMENT DEVICE
#10Valve removal method of fluid pipeline structure, fluid pipeline structure, and valve device
#11Solenoid valve with manual override functionality that has cooperating latch and release handles
#12Valve body and method of transforming a valve body into a functioning valve
#13High voltage high efficiency valve
#14Severe service valve
#15Shut-off valve repair system
#16SUBSTRATE PROCESSING APPARATUS
#17Improved Valve Apparatus And Method Of Installation
#18Valve replacement device
#19Severe service valve
#20TOOL AND METHOD FOR SAFE REMOVAL OF VALVES FITTED IN FLUID PIPES
#21Backflow prevention and method of manufacture
#22Power boost assist closed device for actuators
#23Safety isolation plug fittings and methods of use
#24Tool for Removing and Installing Plugs and Method of Operation
#25Support structure for repair of pipeline controls
#26Backflow prevention and method of manufacture
#27TOOL AND METHOD FOR SAFE REMOVAL OF VALVES FITTED IN FLUID PIPES
#28INTERLOCKING VALVE CHAMBER AND LID
#29VALVE ASSEMBLY AND CONTROL SYSTEM
#30Serviceable double block and bleed valve
#31High temperature completion plug
#32Apparatus and method for replacing a valve in a water main
#33Serviceable ball check valve
#34Valve core removal tool fixture with slide valve