Patents for F16K 17 - Safety valves; Equalising valves (21,027)
07/1989
07/19/1989CN1034047A Forward direction closing safety valve device for automatically shutting gas pipeline passage off during pressure reducing failure
07/18/1989US4848399 First out pneumatic indicator valve
07/18/1989US4848398 Ball gate pressure relief valve
07/18/1989US4848397 High temperature safety relief system
07/12/1989CN2040977U Pressure-relief valve for transformer
07/11/1989US4847599 Fluid leak detector
07/11/1989US4846209 Scuttle valve
07/11/1989US4846208 Closing arrangement for a vent line of a fuel tank
07/06/1989DE3742722A1 Direkt wirkendes sicherheitsventil Direct acting safety valve
07/04/1989US4844113 Fluid flow safety valve
07/04/1989US4844111 High pressure regulator valve
06/1989
06/29/1989DE3153338C2 Actuating device for a valve
06/27/1989US4843187 Gasket assembly and electrical power transformer including the same
06/27/1989US4842198 Device for damage protection against local flooding caused by sprinkler failure
06/27/1989US4842019 Pressure compensator device for proportional type hydraulic distributor and hydraulic distributor incorporating same
06/27/1989US4842004 Quick-release assembly for rupture disc insert type holder and the like
06/21/1989EP0211074A4 Direct-acting, differential piston relief valve.
06/20/1989US4841287 Earthquake utilities cut-off control system
06/20/1989US4840545 Scroll compressor relief valve
06/15/1989DE3729981A1 Safety device with a guard valve
06/15/1989DE3546557C2 Pressure relief valve
06/13/1989US4839790 Gas accident preventive unit
06/13/1989US4838447 Pressure relief device with conical reverse buckling disc
06/13/1989US4838305 Pressure differential valve
06/13/1989US4838300 Pressure relief cartridge
06/13/1989US4838298 Hydraulic latch device
06/08/1989DE3740084A1 Protective device against unintentional discharge of a pressurised consumable
06/08/1989DE3739969A1 Configuration of a valve plate and valve seat
06/07/1989EP0318978A1 Valve
06/07/1989EP0270547B1 Valve for the addition of water to electrochemical accumulator batteries
06/07/1989CN2038989U Safety pressure reducing valve for liquefied gas
06/07/1989CN2038979U Automatic control energy-saving valve
06/07/1989CN2038978U Pressure maintaining device of acetylene dissolving tank
06/07/1989CN1033305A Limiting pressure value for closing circulation
06/06/1989US4836247 Regulator means for automatically shutting the gas pipeline passage off during pressure reducing failure
06/06/1989US4836240 Pilot-assisted pressure relief valve
06/01/1989DE3902616A1 Gas-cylinder valve with a pipe- or hose-break valve
06/01/1989DE3830075A1 Pressure-relief valve for closed circuits
05/1989
05/31/1989EP0317702A1 Staged pressure relief assembly
05/31/1989CN2038584U Floating ball type respiratory valve
05/31/1989CN2038583U Automatic control fluid level valve
05/30/1989US4834135 Pressure control valve
05/30/1989US4834131 Safety system for pneumatic tools
05/24/1989CN2038176U Pilot-valve type safety valve
05/24/1989CN2038175U Pressure-controlled valve for inflation
05/24/1989CN1033094A Safety valve for control
05/23/1989CA1254484A1 Non-flowing pressure responsive pilot valve
05/23/1989CA1254483A1 Non-flowing modulating pilot operated relief valve
05/17/1989EP0315971A1 Safety system for pneumatic tools
05/16/1989US4830117 Shut-off device for an automatic sprinkler
05/16/1989US4830115 Valve assembly for sprinkler head
05/16/1989US4830052 Diaphragm safety device with upstream active bursting knife
05/16/1989US4830046 Excess flow control valve
05/16/1989US4830045 Breaker valve
05/10/1989CN2037419U Leader type safe vlave
05/09/1989US4828183 Butterfly valve for fluid flow line
05/09/1989US4828167 Wax-pellet thermostat
05/09/1989US4827966 Pressure equilibrator for gases
05/09/1989US4827963 Heat sensitive shaft locking apparatus and valve using same
05/09/1989US4827962 Safety valve
05/03/1989EP0314577A2 Hot fluid pipeline relief valve
05/02/1989US4825937 Sealing apparatus for automobile radiators
05/02/1989US4825925 Tire deflation system
05/02/1989US4825916 Flow control valve
05/02/1989US4825903 Pressure control valve
05/02/1989US4825897 Flow control valve
05/02/1989US4825893 Socket assembly with fusible element
04/1989
04/27/1989EP0203090A4 Diverter.
04/26/1989EP0254725B1 Spring-loaded safety valve for gases and vapour
04/26/1989CN1004027B Condensate separator and discharging device
04/19/1989CN2036173U Loading valve spring engaging apparatus
04/18/1989US4821909 Hygienic pressure relief panel unit
04/18/1989US4821817 Actuator for an appliance associated with a ducted body, especially a drill rod
04/18/1989US4821775 One shot valve
04/18/1989US4821759 Earthquake relief valve
04/12/1989CN2035833U Electrically-driven safety valve for alarming
04/11/1989US4820215 Fuel supplying system for outboard motor
04/11/1989US4819823 Safety pressure relief device and method for making the same
04/11/1989US4819688 Volumetric, self-resetting, hydraulic fuse
04/11/1989US4819683 Pressure relief device
04/11/1989CA1252494A1 Quick release valve
04/11/1989CA1252367A1 Automatic control system for water heaters
04/06/1989DE3731662A1 Safety valve
04/06/1989DE3722060A1 Safety valve protective system
04/05/1989EP0310595A2 Regulating valve
04/05/1989CN1003803B Condensate separator and discharging device
04/04/1989US4817665 Safety valve
04/04/1989US4817658 Automatic valve actuator
04/04/1989US4817657 Inertially activated shut-off valve
03/1989
03/29/1989EP0308875A2 High pressure regulator valve
03/29/1989CN2035033U Automatically-stopping pressure-regulating valve
03/28/1989US4815697 Depressurization valve
03/21/1989US4813445 Apparatus for supplying fuel under negative gravity conditions
03/15/1989CN2034227U Pressure adjustable pressure-limiting valve for pressure cooker
03/14/1989US4811756 Safety valve
03/14/1989US4811752 Auxiliary remote valve actuator
03/09/1989WO1989002047A1 A valve device
03/08/1989EP0306467A1 Automatic cut-off device for a double-walled fluid transporting network
03/08/1989EP0306416A1 Pilot-operated safety valve
03/08/1989EP0306368A1 Pressure compensator valve for a hydraulic proportional directional valve, and hydraulic directional valve comprising it