Patents
Patents for F16K 3 - Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing (13,986)
04/1981
04/30/1981WO1981001183A1 Refrigerant flow reversing valve
04/28/1981US4264054 Metal-to-metal seat hub seals
04/21/1981US4262898 Hand exerciser having a counter
04/21/1981US4262878 Hydraulic valve
04/15/1981EP0027027A1 Flexible gate valve
04/14/1981US4261389 Gas injecting valve for suspensions
04/08/1981EP0026586A1 Flow control valve
04/07/1981US4260134 Skirted hub with full penetration butt weld to body
03/1981
03/31/1981US4258743 Expanding gate valve having mechanically secured seats
03/24/1981US4257580 Pneumatic spring
03/24/1981US4257543 Three-plate slide valve closure for liquid melt containers
03/24/1981US4257447 Gate valve
03/17/1981US4256163 Valve cartridge
03/10/1981CA1097391A1 Air gun with balanced pressure valve
03/10/1981CA1097306A1 Skirted hub with full penetration butt weld to body
03/10/1981CA1097305A1 Valve for opening and closing a fluid conduit
03/10/1981CA1097188A1 Hydraulic power system
03/03/1981US4253487 Multi-position dual disc slide valve
03/03/1981US4253485 Valve for opening and closing a fluid conduit
03/03/1981US4253483 Movable blade damper
03/03/1981US4253400 Railway hopper car sliding gate closing mechanism
03/03/1981CA1096842A1 Valve
02/1981
02/24/1981CA1096356A1 Lined gate valve having improved seat
02/24/1981CA1096355A1 Eccentrically rotatable valve
02/24/1981CA1096344A1 Power-operated loading gate for centrifugal machines incorporating an auxiliary drive device
02/17/1981US4251193 Flow control valve
02/17/1981US4250912 Cartridge faucet for hydraulic systems
02/10/1981US4249574 Orifice trim and backpressure plate for high pressure valves
02/10/1981US4249560 Automatic valve clearoff
02/03/1981US4248158 Railway hopper car gate outlet actuating mechanism
01/1981
01/27/1981US4246928 Restricted movement valve seats for an expanding gate valve
01/27/1981CA1094530A1 Resilient seated gate valve
01/27/1981CA1094529A1 Valve
01/20/1981US4245661 Heat responsive back seat arrangement for valve operator
01/13/1981US4244557 High vacuum seal
01/13/1981CA1093423A1 Valve
01/13/1981CA1093391A1 Plumbing test fitting
01/07/1981EP0021057A1 Stop valve
12/1980
12/30/1980US4241896 Method of making calibrated gas metering orifice and product thereof
12/30/1980US4241754 Pushbutton diverter
12/23/1980US4240608 Controlled float seat arrangement for expanding gate valves
12/23/1980US4240460 Means for limiting floating movement of gate valve seats
12/16/1980CA1091637A1 Slide gate damper
12/11/1980WO1980002732A1 Expanding gate valve having mechanically secured seats
12/09/1980US4238111 Gate valve for use with vacuum equipment
12/09/1980CA1091216A1 Ball valve
12/02/1980US4236692 Controlled floating seat for gate valves
12/02/1980US4236547 Self-cleaning valve plug and seat assembly
11/1980
11/25/1980US4235257 Elastic seating element for a cutoff device
11/25/1980US4235256 Damper assembly for gas duct
11/18/1980US4234010 Self-cleaning dump valve for chemical reactor tank
11/18/1980CA1089730A1 Fluid coupling for a fan drive
11/04/1980US4231547 Dispensing valve for liquids
11/04/1980US4231544 Locking crankcase drain valve assembly
11/04/1980US4231388 Gate for use in a gate valve
11/04/1980CA1088910A1 Replaceable one piece liner for a gate valve
11/04/1980CA1088909A1 Apparatus for opening and closing a fluid conduit
10/1980
10/21/1980US4228988 Valve
10/14/1980CA1087590A1 Eccentric rotary valve with control-improving wing member
10/07/1980CA1087150A1 Sub-surface gate valve
09/1980
09/30/1980US4225115 Gate valve
09/30/1980CA1086706A1 Knife gate valve
09/30/1980CA1086638A1 Sliding valve
09/23/1980US4223868 Resilient seated gate valve
09/23/1980US4223867 Valve with a pair of valve plates
09/17/1980EP0015600A1 Cock of improved type
09/16/1980US4222406 Wedge-type gate valve
09/16/1980CA1085807A1 Resilient seated gate valve with improved seat arrangement
09/09/1980US4221307 Method and apparatus for material handling
08/1980
08/26/1980US4219188 Slide valve for the injection of material for use in the outlet of a metallurgical vessel
08/26/1980US4219183 Operating mechanism for valves, gates and the like
08/26/1980US4219182 Liquid flow control valve
08/19/1980US4218041 Low noise slide valve
08/06/1980EP0014107A1 Method of manufacturing a cylindrical sleeve with inner grooves, closed at least at one end
08/05/1980US4215846 Multiportion unitary valve seat and valve incorporating it
08/05/1980US4215845 Engine air cut-off device
07/1980
07/29/1980US4214730 Chemically inert control valve
07/29/1980US4214608 Apparatus for opening and closing a fluid conduit
07/29/1980CA1082564A1 Spool type metering valve
07/22/1980US4213741 Variable flow ejector
07/10/1980WO1980001406A1 Slide valve
07/01/1980US4210308 Valve
06/1980
06/24/1980CA1080084A1 Low noise slide valve
06/17/1980US4208035 Metal gate valve seat having a flexible front lip face seal
06/10/1980US4206905 Gate valve
06/10/1980CA1079253A1 Anti-cavitation valve
06/03/1980US4205822 Dispensing valve
06/03/1980US4205821 Multi-way rotary valve for a fluid under pressure
05/1980
05/29/1980WO1980001107A1 Method and apparatus for material handling
05/27/1980US4204662 Valve for controlling the flow of fluids in conduits and the like
05/27/1980CA1078361A1 Limited float seat construction for expanding gate valve
05/20/1980US4203570 Power-operated loading gate for centrifugal machines incorporating an auxiliary drive device
05/20/1980US4203470 Safety valve for gas pipes
05/13/1980US4202527 Scissor-type valve
05/06/1980US4201365 Lined gate valve having improved seat
05/06/1980CA1077010A1 Multi-position disc slide valve
04/1980
04/22/1980CA1076094A1 Gate valve having a single floating seat and a fixed seat
03/1980
03/25/1980US4194721 Plumbing test fitting
03/20/1980WO1980000483A1 Power-operated loading gate for centrifugal machines incorporating an auxiliary drive device
03/18/1980US4193581 Cage for gate valves and method of assembly