Matches 451 - 500 out of 600 < 1 2 3 4 5 6 7 8 9 10 11 12 >
Match Document Document Title
3557824 SPOOL CONTROL VALVE  
A fluid control valve including a spool whose end exposable to corrosion environment is tapered to a reduced diameter and coated with corrosion resistant material. The reduced diameter facilitates...
3556158 INSULATOR FOR PIPE ACCOUTERMENTS AND THE LIKE  
This patent deals with insulators formed of a pair of blanks. Each blank comprises a rigid outer shell with one open face, and interiorly of the shell is a block or insert of a novel polyurethane...
3552426 VACUUM BREAKER DEVICE  
A vacuum breaker device for preventing excessive buildup of vacuum within a piping system or vessel containing corrosive fluid. The device includes a body member having a liner secured within an...
3545480 LINED GATE VALVE  
3538576 METHOD OF CONVERTING A BRASS VALVE INTO A CRYOGENIC VALVE  
3538939 WATER JACKETED,ACID CONTAINING VESSELS  
3537682 HIGH TEMPERATURE BALL VALVE  
3534767 CHECK VALVE FOR A FLOAT SUB  
3533436 SINGLE-CONTROL MIXING FAUCET AND VALVE FOR USE THEREIN  
3532123 FLUID METERING AND MIXING DEVICE  
3529619 VALVE DEVICE  
3520325 INTEGRALLY CAST CONDUIT FOR A VALVE HAVING A PLASTIC BODY  
3510924 TROWELING PLASTER DELIVERY APPARATUS  
3510102 VALVE ASSEMBLY  
3508573 MEANS FOR PROTECTING VALVE PARTS  
3503416 VALVE ASSEMBLY  
3503415 BALL VALVE AND CONSTRUCTION THEREOF  
3498318 PLUG VALVES HAVING RELIEVED HIGH PRESSURE SEAL AREAS  
3498315 CORROSION RESISTANT BALL CHECK VALVE  
3498319 VALVE,PARTICULARLY LINED WITH PLASTIC MATERIAL  
3490736 GLASS VALVE  
3490734 BALL VALVES  
3474820 Y-PATTERN CORROSION-RESISTANT VALVE  
3472485 VALVE SHANK SEAL  
3465783 BRANCH CONDUIT CONNECTION FOR FLUID DISTRIBUTION SYSTEMS  
3463691 METHOD FOR FORMING LIQUID HEAT EXCHANGE PIPING SYSTEM  
3459213 COATED HOLLOW PLUG VALVE  
3451652 SANITARY VALVE  
3450151 ABRASION AND CORROSION RESISTANT VALVE CONSTRUCTION AND METHOD  
3448761 VALVE FOR REGULATING FLOW OF HIGH-TEMPERATURE LIQUIDS  
3446236 FOUNDRY TECHNIQUE FOR THE MANUFACTURE OF HEAVY WALL THICKNESS VALVES AND FITTINGS FOR NUCLEAR APPLICATION  
3444881 LARGE FREE BALL CHECK VALVE  
3438388 FULLY LINED VALVE  
3430646 HOT GAS RELIEF VALVE  
3430484 LAND OR UNDERWATER PIPE LINE  
3425439 BUTTERFLY VALVE  
3425456 PROTECTIVE SHEATH FOR INSULATING PIPE COVERING  
3420262 CORROSION-RESISTANT VALVE  
3407838 Plastic lined valve  
3407837 Sillcock with ice expansion control  
3406707 Top cap and stem seal for valves  
3402731 Piping systems  
3399691 Liquid transfer system  
3398887 Encapsulated compressor  
3394914 Fluid pressure responsive sealing butterfly valve  
3376014 Replaceable substantially rigid fluorocarbon resin valve unit for use in butterfly valves  
3367359 Ball valve assembly with corrosion resistant lining  
3367358 Pipe juncture covering device and applying method  
3366135 Valve of minimum thermal leak for high temperature and low temperature  
3360001 Vacuum jacketed pipe line and joint construction therefor  
Matches 451 - 500 out of 600 < 1 2 3 4 5 6 7 8 9 10 11 12 >