Patents
Sitemap › F16 - Engineering elements or units; General measures for producing and maintaining effective functioning of machines or installations; Thermal insulation in general › F16K - Valves; Taps; Cocks; Actuating-floats; Devices for venting or aerating › F16K 41 - Spindle sealings
Patents for F16K 41 - Spindle sealings (6,230)
06/1989
06/14/1989CN2039372U Multi-functional valve for combustible gas
05/1989
05/31/1989CN2038580U Differential leak-proof stop valve
05/24/1989CN1033094A Safety valve for control
05/18/1989WO1989004399A1 Tar-spray with valve
05/17/1989CN2037796U Metallic-diaphragm valve
05/11/1989DE3736644A1 Sealing device for a valve stem displaceable in its axial direction
05/09/1989US4828219 Metal diaphragm valve
05/09/1989US4827967 Plug valve
05/03/1989CN2037020U Novel automatic controlled valve
05/02/1989US4826181 Seal utilizing composites of flexible graphite particles and amorphous carbon
05/02/1989CA1253482A1 Stem sealing for high pressure valve
04/1989
04/27/1989DE3821893A1 Sealing ring with guide
04/19/1989EP0312500A2 Fluid flow control device and compression member therefor
04/18/1989CA1252774A1 Valve stem packing
04/11/1989US4819691 Valve device
04/05/1989EP0310530A2 Valve with manual actuating means
03/1989
03/30/1989DE3730896A1 Gate valve
03/28/1989US4815699 Valve with resilient, bellows mounted valve seat
03/22/1989EP0308390A1 Valve stem packing containment for high pressure, high temperature
03/15/1989CN2034222U Bladder-chamber type spiral-groove stop valve
03/14/1989US4811652 Constant differential overpressure device
03/09/1989DE3728264A1 Shut-off element for a gas or liquid line
03/08/1989EP0306416A1 Pilot-operated safety valve
02/1989
02/28/1989US4807849 Fluid flow control device and compression member therefor
01/1989
01/26/1989DE3723835A1 Control fitting for flowing media
01/19/1989DE3722816A1 Retightening device for a stuffing box
01/17/1989US4798314 Dispensing valve with tubular seal
01/11/1989CN2030678U Closed water valve
01/04/1989EP0297976A1 Sealed transmission device using metallic bellows, especially for single quarter turn valves
01/03/1989US4795134 Valve with improved sealing properties
12/1988
12/21/1988CN88210121U Pressure-relief fire hydrant valve
11/1988
11/22/1988CA1245207A1 Valve stem packing assembly
11/02/1988CN88105396A Flexibly connected foot-operated combination water tap
11/01/1988US4781216 Gas regulating valve
10/1988
10/19/1988CN88212252U Closely sealed and abrasion-resistant cut-off valve
10/18/1988US4778150 Non-rotating stem valve
10/05/1988EP0285573A2 Flexible membrane for heavy duty application apparatus
10/05/1988CN87216469U Foot water-saving valve
09/1988
09/28/1988EP0283537A1 Cut-off tap
09/27/1988US4773442 Globe valve having a dismountable seat for rapid maintenance
08/1988
08/24/1988CN87214695U Leakproof water tap
08/17/1988EP0278861A1 Control valve for gas
08/17/1988EP0278417A2 Turning valve spindle sealing without a stuffing box
08/16/1988US4763690 Leak-proof valve for gas cylinders
08/02/1988US4760990 Diaphragm valve
07/1988
07/27/1988EP0275357A1 Fixture for a conduit
07/26/1988CA1239631A1 Mechanically preloaded packing assembly
07/20/1988CN87216870U Internal sealed box of valve without filler
07/12/1988CA1239138A1 Valve stem-to-bonnet backseat
06/1988
06/23/1988DE3643926A1 Pipe fitting
06/22/1988EP0271771A2 Hot water valve
06/15/1988EP0271113A2 Valve with a pressure-equalised sealing element
06/14/1988US4750709 Diaphragm valve
06/14/1988CA1238030A1 Valve
06/08/1988EP0270207A1 Improved seal
05/1988
05/24/1988US4745938 Outside seal and yoke valve
05/19/1988DE3738071A1 Safety valve with sealing at the piston guide
05/19/1988DE3637208A1 Two-way seat valve for liquids consisting essentially of water
05/10/1988CA1236447A1 Sealed valve
05/04/1988CN87208785U Antiseep gasket of stop valve
04/1988
04/27/1988EP0264466A1 Bellow valve
04/12/1988US4736766 Flow shut-off valve
04/06/1988EP0263042A1 Sealing system between a spindle and valve housing, and extractable cup therefor
03/1988
03/29/1988US4734201 Purification
03/29/1988CA1234528A1 Pressure relief valve
03/23/1988CN87203330U Closed butterfly valve for controlling flow of high and low temp. fluid
03/22/1988US4732363 Diaphragm valve
03/22/1988CA1234328A1 Single handle faucet valve
03/16/1988CN87106149A Improved seal
02/1988
02/24/1988CN87200181U External leak-preventing and sealing unit for valve
02/17/1988CN87203489U Water saving valve
02/10/1988CN86210407U Annular sealing diaphragm
02/10/1988CN86210313U Self-closed spring woter valve
02/09/1988CA1232594A1 Valve with improved backseat arrangement
02/02/1988US4722508 Valve on processing plant
02/02/1988US4722507 Piston sealing ring apparatus
01/1988
01/27/1988CN87206359U Water tap without overflow
12/1987
12/30/1987CN87103873A Inverted bellows valve
12/02/1987EP0247275A2 Fire resistant gate valve
12/01/1987CA1229837A1 Bellows sealed stem for rotary valve
12/01/1987CA1229835A1 Rotatable shaft assembly
11/1987
11/25/1987EP0246584A2 Valve with membrane
11/25/1987CN87103612A 隔膜阀 Diaphragm
11/24/1987CA1229586A1 Actuator mechanism for double bent bellows sealed rotary valve
11/19/1987EP0246109A2 Valve
11/19/1987DE3616251A1 Pilot-controlled valve for fluids
11/18/1987CN86207346U Lubricated valve with separation between valve rod and screw portion of valve
11/12/1987DE3615229A1 Valve, in particular a thermostat valve
11/04/1987EP0244185A2 Bellows valve
10/1987
10/28/1987CN86210104U Long-term no-leak cut-off valve
10/21/1987EP0241952A1 Pressure relief valve
10/13/1987US4699359 Shut-off valve
09/1987
09/23/1987EP0237612A1 Stem seal for tapered lubricated plug valves
08/1987
08/25/1987US4688601 Control valve
08/20/1987DE3604622A1 Valve for systems with high purity requirements
08/18/1987US4687181 Metering valve
08/18/1987US4687180 Metering valve
08/18/1987US4687017 Inverted bellows valve
08/12/1987EP0118457B1 Fire safe plug valve
07/1987
07/30/1987DE3602027A1 Gas-tight universal valve
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