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| Number | Title | Issue Date |
| 7309430 | Filtration system utilizing a single valve to direct fluid streams between filter assemblies and corresponding methods A filtration assembly for filtering polymer fluids at varying flow rates includes at least two filter housing assemblies releasably attached to a filter support or main block. Polymer fluid is delivered to the filter housing assemblies via an inlet passage in the ma... | 12/18/2007 |
| 7013917 | Rotary valve A high-speed, high pressure rotary valve is provided comprising a valve body, a valve element which includes a plurality of passageways therethrough that is configured to be rotatably disposed within the valve body, and means for rotating the valve element within th... | 03/21/2006 |
| 6901960 | Double diaphragm pump including spool valve air motor A double diaphragm pump including a pump housing, first and second pump diaphragms, an inlet manifold, an outlet manifold, and an air motor. The air motor includes a spool valve having a valve housing, an insert surrounded by the valve housing, and a spool. The valv... | 06/07/2005 |
| 6619613 | Gas flow rate controller and gas appliance using the same Gas flow control apparatus that includes a gas flow control unit having a gas flow adjusting capability and a gas closing capability of selectively opening and closing a gas. A stepping motor is used for driving the gas flow control unit. A drive control ... | 09/16/2003 |
| 6408882 | Diverter valve An apparatus and method is disclosed for an improved diverter valve comprising a valve housing defining an internal chamber. A main port and a first and a second port communicate with the internal chamber in a Y-shape configuration. A spool valve element ... | 06/25/2002 |
| 5803117 | Multi-route full sweep selection valve A single selection valve allows the selection of three or more alternate flow routes without any unswept volume along any of the routes. The selection valve has a rotor (22) that can pivot about an axis (30) on a stator (12), the stator having ports (1-8)... | 09/08/1998 |
| 5758829 | Fuel injection valve for internal combustion engines A fuel injection valve for internal combustion engines with a valve member which is displaced in a bore in a valve body by the fuel pressure, counter to the action of a closing spring. The valve body has at a combustion-space end, a valve head which on a ... | 06/02/1998 |
| 5248084 | Apparatus and method for controlling the water flow rate from the boiler circuit to the heating circuit in hot water heating systems The volume of water in circulation is controlled by means of a bell-type mixer (4) which has a stationary section disc (6) and a somewhat sickle-shaped rotary distributor bell (7). The section disc has at least three separate passage openings, the first o... | 09/28/1993 |
| 5193237 | Pneumatic wheel chair cushion for reducing ischemic injury A pneumatic cushion for a wheel chair and the like is disclosed which comprises an air plenum box, a plurality of air openings in the air plenum box, and a plurality of air channels communicating with an air supply. The air channels communicate with the a... | 03/16/1993 |
| 4649955 | Pulsed gas supply The pulsed gas supply consists of a cylindrical gas reservoir which conta a multiplicity of small release ports in a helical pattern and an inner cylindrical rotary valve which also contains a multiplicity of small release ports in the same helical patte... | 03/17/1987 |
| 4649028 | Electrolyte analyzer A reagent and wash fluid supply system for a flow through analyzing system which includes a tubular fluid sampling probe (70), having a sampling port (63) which aspirates air, sample and liquid reagents through the analyzing system which cooperates with a... | 03/10/1987 |
| 4461052 | Scrubbing brush, rinse and sweeping equipment A hand operated combination handle and control valve assembly applicable to each of three related cleaning devices. The valve, when attached to a standard pressurized water hose, controls the pressure flow as desired; such as off, pressure to a first outl... | 07/24/1984 |
| 4403626 | Valve assembly A low restriction multiple outlet valve includes a housing having an interior chamber with an inlet opening thereinto, at least two outlets, and a flow directing member. The flow directing member snugly rotates about a portion of the chamber on an axis. T... | 09/13/1983 |
| 4224958 | Valve device for diverting and combining fluid flows A valve device for controlling the flow of a fluid. In a first embodiment, the valve device is designed to control the flow of a fluid, particularly a hot plastic liquid melt. The valve device comprises a first upper plate and a second lower plate with a ... | 09/30/1980 |
| 4064845 | Metering valve for pilot fuel injection A valve assembly for a pilot fuel injection system, which system also includes a transfer pump, a high pressure fuel pump, and a fuel injection nozzle. The valve assembly includes a blocking valve and a metering valve in an unitary housing having a high p... | 12/27/1977 |
| 3988787 | Pressure differential valve for swimming pool A two-way valve operated by a pressure differential existing in the fluid lines controlled by the valve for use in swimming and therapeutic pool systems.... | 11/02/1976 |
| 3960234 | Controller for fluid pressure operated devices providing high pressure to an auxiliary device A controller for fluid pressure operated devices such as power steering systems is provided. The controller is of the type having an inlet for receiving a system fluid flow, an outlet, a pair of control fluid ports for connection to a primary fluid pressu... | 06/01/1976 |
