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 21 - Fluid-delivery valves
Patents for F16K 21 - Fluid-delivery valves (3,625)
10/1990
10/23/1990CA1275395C Water timer
10/18/1990WO1990012233A1 Fluid fill valve with accurate fill level mechanism
10/16/1990US4962786 Hydraulic fuse with pressure regulator
10/03/1990EP0389471A1 Bath fittings with automatic water cut-off on reaching a chosen level
09/1990
09/19/1990CN2062395U Time delay rinsing valve
09/11/1990CA1273858A1 Liquid flow control valve
09/05/1990CN2061636U Flow-controllable self-closing water valve
09/04/1990US4953508 Boiler for steam flatirons, incorporating an improved replenishment manifold
08/1990
08/28/1990US4951918 Valve vent
08/28/1990US4951915 Electronic water flow control device
08/22/1990CN1044848A Frictional drag type delay-adjustable dual-purpose valve for flushing and washing
08/22/1990CN1044847A Air-damped delay-adjustable dual-purpose valve for flushing and washing
08/07/1990US4945944 Fill valve for toliet tanks
07/1990
07/17/1990CA1271688A1 Hydraulic fuse
07/10/1990US4940206 Faucet
06/1990
06/27/1990CN2058712U Quantity of fluid timing self-closing water tap
06/19/1990US4934651 Magnetically operated valve and timer assembly
05/1990
05/29/1990US4929176 For a gas container
05/29/1990US4929175 Noncontrolling type valve
05/22/1990US4927747 Noncontrolling type valve
04/1990
04/25/1990CN2056470U Tap water valve with air pressure controlled cut-off device
04/19/1990DE3835497A1 Self-closing shut-off valve
04/17/1990US4916762 Positive shut-off, metered water control system for flush tanks
03/1990
03/21/1990CN1040669A Mechanical quatitative liquid supplying device
03/07/1990CN2054131U Delay self-closing and self-cleaning type water tap
03/07/1990CN2054130U Timing self-closing water-saving tap
03/06/1990US4905726 Fuel interception valve
02/1990
02/28/1990EP0355153A1 Liquid level control system.
02/27/1990US4903731 Water closet tank fill valve
02/27/1990US4903724 Liquid level control system
02/21/1990CN1039887A Self-closing valve for sanitary installations
02/14/1990CN2052850U Intermittent quantitative water feeding valve
02/13/1990US4899778 Metering valve
02/07/1990CN2052469U Water tap by cavity control bolt displacement
01/1990
01/31/1990EP0353096A1 Self-closing valve assembly
01/31/1990EP0225362B1 Liquid flow control valve
01/24/1990CN2051699U Time delay adjustable self-closing valve
12/1989
12/19/1989US4887635 Fluid fill valve with accurate fill level mechanism
12/05/1989US4884781 Tamper resistant valve assembly primarily adapted for sampling of fluids
12/05/1989US4884725 Water dispensing system
11/1989
11/29/1989CN2048547U Quantum system for water valve
11/29/1989CN2048546U Time-delay water saving valve
11/15/1989CN1037200A Crank linkage driving system
11/02/1989EP0339548A2 A noncontrolling type valve
11/02/1989EP0339547A2 A noncontrolling type valve
11/02/1989EP0339546A2 Container for a liquified gas fuel with a noncontrolling type valve
11/01/1989CN2046965U Multifunctional water-saving valve
11/01/1989CN2046964U Delay self-closing valve control device
11/01/1989CN2046963U Cock-type two-functional water-saving tap
10/1989
10/19/1989DE3811358A1 Self-closing valve
10/11/1989CN2045803U Time-delay washing valve
10/11/1989CN1036238A Boiler for steam flatirons
09/1989
09/26/1989CA1260928A1 Apparatus and method for dispensing a detergent solution
09/20/1989EP0333540A1 Gas valve with a thermocouple safety system, and apparatus using such a valve
09/20/1989EP0333526A1 Slow-closing valves
09/20/1989CN2044673U Delay valve for limiting water supply
09/20/1989CN2044672U Hygienic water-saving valve
09/13/1989CN2044308U Self closing water saving valve
08/1989
08/30/1989EP0330034A1 A boiler for steam irons, incorporating an improved replenishment manifold
08/22/1989US4858790 Collapsible chamber metering valve
08/10/1989WO1989007293A1 Liquid level control system
08/09/1989CN2042552U Controllable delay self-closing valve ii
08/09/1989CN2042551U Time delay self-closing valve for saving water
08/02/1989EP0326058A2 Self-closing valve, especially for water
07/1989
07/20/1989DE3744396A1 Self-closing time valve for fluid media
07/12/1989CN2040978U Time delay auto-shut-off water-saving valve
07/11/1989US4846222 Volume flow control device
07/05/1989EP0322484A1 Valve
07/05/1989CN2040571U Controllable time-delay self-closing valve
07/04/1989US4844117 Fluid level controller
06/1989
06/28/1989CN2040206U Adjustable delayed-close flushing valve
06/21/1989EP0321279A1 Dispensing device
06/21/1989EP0211074A4 Direct-acting, differential piston relief valve.
06/13/1989US4838462 Double bellows purge valve
05/1989
05/24/1989CN2038177U Time-delay self-closing water tap
05/23/1989US4832310 Flush control valve
05/10/1989CN2037420U Controlled delayed self-stop valve
05/02/1989US4825901 Temperature compensating fluid metering valve
05/02/1989CA1253468A1 Valves for pressurised dispensing containers
04/1989
04/26/1989EP0312750A2 Pressure flush valve for water closets
04/25/1989US4823990 Dispensing device
04/19/1989EP0312320A2 Overfill valve construction
04/18/1989US4821927 Liquid dispensing gun
04/11/1989US4819909 Self-closing valve for sanitary installations
04/11/1989US4819834 Apparatus and methods for delivering a predetermined amount of a pressurized fluid
04/11/1989CA1252439A1 Valve assembly for a pressurized aerosol dispensing container
04/04/1989US4817913 Flushometer relief valve
03/1989
03/15/1989EP0307127A1 Collapsible chamber metering valve
03/14/1989US4811862 Unified assembly for control of fluid flow and a liquid dispensing system which includes such an assembly
02/1989
02/21/1989CA1250272A1 Self-closing valve
02/14/1989US4804163 Key button type of water tap
02/14/1989US4804116 Valve for dispensing fluid from a container
02/08/1989CN2032279U Automatic-delay start and stop liquid valve
02/01/1989EP0301687A2 Temperature compensating fluid metering valve
01/1989
01/31/1989US4801053 Valved dispensing spout
01/11/1989CN2030682U Delay flushing valve
12/1988
12/29/1988DE3719466A1 Valve for reducing the water consumption when washing one's hands
12/21/1988CN88202503U Multipurpose and no pollution valve
12/07/1988EP0294197A2 Sealless dispensing mechanism
11/1988
11/15/1988US4784368 Self-closing valve for sanitary installations
1 ... 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37