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| Number | Title | Issue Date |
| 7493914 | Newtonian thrust cowl array The three-way valve allows fluid flow to be selectively directed to a run outlet, a bypass outlet or both at the same time. The three-way valve includes a flow diffuser with a primary valve seat positioned opposite a bypass valve seat. Choke points and flow restrict... | 02/24/2009 |
| 6935354 | Permeable gas assembly for gas delivery A valve assembly for controlling gas delivery from a higher pressure fluid source to a lower pressure processing tool comprising a valve poppet movingly engageable with a valve seating member and a fluid permeable insert positioned between the valve poppet and the v... | 08/30/2005 |
| 6810911 | Four-way switching valve A four-way switching valve includes a first three-way switching valve having a valve element for connecting a port B to a port A, or to a port D via a sleeve, in a switching manner; a second three-way switching valve having a valve element for connecting a port C to... | 11/02/2004 |
| 5996606 | Four-port valve and three-way valve A four-port changeover valve in an emergency water storage tank facility for changing over the flow paths of the water main and to the tank by axially moving the valve rod. Three valve seats are formed axially in a valve box. The valve rod extends through... | 12/07/1999 |
| 5685340 | Metering valve A improved metering valve includes a valve body, a retractable member, a control device, a feed duct and a return duct. The feed duct has a relay duct connected to a pumping system so that liquid may be directly pumped via the feed duct into the valve bod... | 11/11/1997 |
| 5351717 | High differential pressure control valve A high differential pressure control valve having a plurality of stages of high resistance ports forming a high resistance passage and one or more low resistance ports forming a low resistance passage in a cage. The number of stages of low resistance port... | 10/04/1994 |
| 5233910 | Pressure holding valve A pressure holding valve for pressure-fluid-actuated leveling systems in vehicles, having at least one seat valve with a valve opening, a valve seat and a valve member in which the valve member is opened by a control piston acted upon by pressure fluid. I... | 08/10/1993 |
| 4962791 | Seat valve The invention relates to a seat valve in which a ball-shaped valve element is held in a sleeve which has control edges which cooperate with an opening arranged between the valve seats and connected to a connection. On switching over of the valve element f... | 10/16/1990 |
| 4941507 | Water pressure-sealing faucet without water hammer effect A water pressure-sealing faucet including a sleeve body having a lower outlet opening, provided with inlet holes the diameters of which are reduced downward, and a controlling valve slidably received in the sleeve body, having a lower controlling pin groo... | 07/17/1990 |
| 4844553 | Dash control valve with differential trip A control valve for a fluid pressure braking system includes a housing which receives a pair of identical plungers and corresponding springs acting on the plunger which activate automatically at different trip pressures. The differential trip pressures ar... | 07/04/1989 |
| 4781702 | Three-way connector for liquid exchange One end (4a) of a supply tube (4) opening out into the three-way connector is closed by a diaphragm (9) and filled with fresh fluid. This end is situated opposite one end of a duct (3b;36) to which a connection tube (3) is connected, with which it is axia... | 11/01/1988 |
| 4691737 | Brake control valve A control valve for a vehicle fluid pressure braking system includes a housing having an inlet port, an outlet port and a delivery port. A plunger is movable in the housing to control communication between the ports. The plunger is provided with a shoulde... | 09/08/1987 |
| 4662398 | Control valve for a steam box A control valve (22) is disclosed for controlled both the flow of steam (S) from a steam header (18) and air (A) into a steam box (12) of a web drying machine. The control valve (22) includes a valve body (26) defining a longitudinal passageway (28). The ... | 05/05/1987 |
| 4644969 | Water control valve with pneumatic actuator A pneumatically-operated water control valve includes an air actuator, a valve control portion, and an intermediate cylinder block mounted between the air actuator and the valve control portion. The intermediate cylinder block has a first bellows, a secon... | 02/24/1987 |
| 4593715 | Hydraulic controllable two-port valve for a liquid stream A controllable two-way valve for pressure and/or flow control uses a cup-shaped piston, the bottom of which forms a large effective surface area exposed to a control flow through a slit which cooperates with an edge of the slider also serving to define th... | 06/10/1986 |
| 4510970 | Dual seal in-line test valve A high pressure in-line test valve (42) is positioned to block off a first fluid pressure source (10) acting on a control valve means (32 and 34) and to provide communication with an alternate test fluid pressure source (138) for testing the control valve... | 04/16/1985 |
| 4195774 | Dual in-line valve construction Two fluid streams of different temperatures flow through two concentric pipes, the flow of each stream being modulated to achieve a desired mixture temperature. An in-line slide valve is interposed in one fluid flow path, and an in-line poppet valve is in... | 04/01/1980 |
| 4193422 | Annular flow diverter valve A valve for diverting flow from the center of two concentric tubes to the annulus between the tubes or, operating in the reverse direction, for mixing fluids from concentric tubes into a common tube and for controlling the volume ratio of said flow consis... | 03/18/1980 |
| 4175588 | Air pressure brake arrangement for tractor and semi-trailer combinations A tractor-trailer air-pressure brake system which includes a tractor protection control valve, a parking valve, and a trailer fill valve of special design provided for the purpose of achieving a desired non-confusing pattern of control positions whereby s... | 11/27/1979 |
| 4036255 | Vapor recovery adapter A vapor recovery adapter has a housing supported on a storage tank having a volatile liquid therein. The housing is connected to other tanks, which also are vented by the adapter in addition to the tank on which the housing is mounted, through an inlet po... | 07/19/1977 |
| 3994530 | Engine exhaust diverter valve Valve mechanism allows exhaust gas flow to be directed to either a dump body heating system or an exhaust pipe depending on the proximity of the dump body heating system.... | 11/30/1976 |
