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Felix Hoffmann, a German chemist, was searching for something to relieve his father's arthritis. In doing so, he "rediscovered" acetylsalicylic acid and in 1900, patented a stable process for developing it. Hence, we have aspirin.
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| Number | Title | Issue Date |
| 8132593 | Pilot-operated three-port valve A pilot-operated three-port valve includes three ports, two valve seats that are concentric and opposite each other, a poppet-type valve member that is disposed between these two valve seats, and a pilot operating portion that opens and closes the valve member using... | 03/13/2012 |
| 7644731 | Gas valve with resilient seat A gas valve having a valve member disposed within a valve cavity, and an elastomeric valve seat extending from a valve cavity wall into the valve cavity. The valve member is movable between an open position in which the valve member does not engage the resilient val... | 01/12/2010 |
| 7537027 | Valve with duel outlet ports An apparatus includes a valve body defining a chamber located on an axis. The chamber has axially upper and lower ends. The chamber further has upper and lower orifices located at the upper and lower ends through which air can exit the chamber. An upper plug is conf... | 05/26/2009 |
| 7464725 | Air distributor for a compressed-air-operated powder transportation unit of a powder coating device The air distributor according to the invention is provided with an air distributor housing (30) that has an assembly opening, a compressed air inlet (31.2) and a first and a second compressed air outlet (36, 37). The air distributor is further p... | 12/16/2008 |
| 7406984 | Fluid distribution device A fluid distribution device comprising a âTâ shaped body suitable for being connected to a fluid feeding tubing by an inlet and defining two water outlets and wherein inside the body there is provided a seat for a cartridge wherein there is arranged a gate axial... | 08/05/2008 |
| 7367355 | Twin manifold seat valve having solenoid actuation A twin manifold seat valve comprising at least two closure members S1, S2, S3 each functionally associated with at least one valve seat D1, D2, D3, D4. At least one of the closure members is moved to a blocking positi... | 05/06/2008 |
| 7331564 | Normally open high flow hydraulic pressure control actuator A solenoid-operated valve includes a valve body defining a valving bore for providing a path of communication between axially spaced inlet and outlet ports. A solenoid assembly is attached to the valve body and includes an inductor coil, a fixed flux guide and an ar... | 02/19/2008 |
| 7331362 | Valve capable of controlling water discharge A valve includes a hollow pipe defining a first opening and a second opening aligning with each other. A first passage, a second passage, a third passage and a fourth passage are respectively defined in an inner surface of the hollow pipe and communicate with each o... | 02/19/2008 |
| 7322376 | Piezoelectric valve A piezoelectric valve has a flexural transducer accommodated in a valve housing and having a free ending cantilever operational section able to be deflected by electrical control. The operational section extends over two controlled valve openings lying on the same s... | 01/29/2008 |
| 7320338 | Microvalve package assembly A microvalve assembly that can help protect a microvalve or an assembly of microvalves from the environment. Such a microvalve assembly may be mechanically assembled, without the use of adhesives and/or other materials that might out-gas and/or otherwise reduce the ... | 01/22/2008 |
| 7318814 | Medical suction valve A valve assembly includes a housing defining an aperture, a passageway, and a branch passage. The branch passage extends from the aperture and intersects and communicates with the passageway. The branch passage is disposed at an angle greater than 90 degrees with re... | 01/15/2008 |
| 7314063 | Single-lever mixing valve with stirrup-shaped handle A single-lever mixing valve with stirrup-shaped handle (9) comprises a mixing cartridge (2) which is arranged in a fitting housing (1) and projects with an actuating shank (14), pivotable about a pivot axis (16), into a handle head... | 01/01/2008 |
| 7302970 | Liquid delivery device A micro liquid delivery device includes a flow channel for flowing a liquid, at least two pressure-generators for generating pressures provided in the flow channel, and a variable member placed between the pressure-generators and capable of transforming between a fi... | 12/04/2007 |
| 7280019 | Single coil solenoid having a permanent magnet with bi-directional assist A single coil solenoid includes a permanent magnet with bidirectional assist capabilities. The solenoid includes an armature that during de-energization of a single coil of wire is attracted to the permanent magnet thereby maintaining a hold position and during ener... | 10/09/2007 |
| 7264223 | Flow rate control apparatus A flow rate control valve comprises a rotary driving source which is rotated by a control signal, a movable member which is displaceable by the aid of a transmitting shaft under a rotary action of the rotary driving source, a valve mechanism which is connected to th... | 09/04/2007 |
| 7261127 | Modified push-pull valve for filter systems and method A valve assembly is constructed for use in a filtering system including a pump and a filter with an inlet and an outlet, for example those systems used in conjunction with swimming pools. The assembly includes a valve body with a pump inlet, a filtered output, a was... | 08/28/2007 |
| 7232106 | Tilted and stepped diaphragm for control valves A diaphragm operated valve having the diaphragm attached at its lower end to a valve closure plug, and movable therewith, and attached at its upper end to a portion of valve body that forms the pressure cavity. The diaphragm has a stepped portion between its upper a... | 06/19/2007 |
| 7210494 | Valve and method for producing a valve A valve and a method for producing a valve, in particular for coolant circuits, having a valve seat (2) including a valve seating element (1) for a valve body (3) by stamping the pole shoe to form at least one sealing surface (8) to avoid... | 05/01/2007 |
| 7210501 | Directly operated pneumatic valve having a differential assist return A fluid control valve includes a valve body having both fluid inlet and discharge ports. A flow passage axially extending within the valve body communicates with the inlet and discharge ports. A valve member within the flow passage is movable by an actuator force in... | 05/01/2007 |
| 7190893 | Fluid heater with low porosity thermal mass A fluid heater apparatus and method of making same includes a low porosity material, thermally conductive mass. A heat source is disposed in the thermally conductive mass for imparting heat to the mass. Fluid in a flow path through the mass absorbs heat from the mas... | 03/13/2007 |
| 7168250 | Engine valve system and method An engine system (100) has a valve system (137). An inlet of a turbine (109) is fluidly connected to a first inlet (119) of the valve system (137). An outlet of the turbine (123) is fluidly connected to a second inlet (11... | 01/30/2007 |
| 7159406 | Water delivery system with anti-kink device for a refrigerator A system for delivering water to a water dispenser or an icemaker of a refrigerator includes at least one anti-kink device employed in routing a water line. In accordance with a preferred embodiment, the anti-kink device is attached to a support bracket for a valve ... | 01/09/2007 |
| 7142078 | Magnetic levitation actuator A magnetic actuator including a mobile magnetic part, a fixed magnetic part, and a mechanism for triggering displacement of the mobile magnetic part relatively to the fixed magnetic part. At least two amagnetic supports, placed in different planes, delimit a gap bet... | 11/28/2006 |
| 7108206 | Valve assembly and fuel injector using same The present invention broadly applies to any fluid valve made up of a plurality of body components that create sealing lands where the body components are clamped together. The invention is further applicable to any such valves in which pressure differentials within... | 09/19/2006 |
| 7093614 | Solenoid valve for a coolant circuit A solenoid valve for a coolant circuit including a valve body having at least one inlet and at least one outlet for the coolant. A valve member is displaceable in the interior of the valve body between two switching positions for the solenoid valve. At least one out... | 08/22/2006 |
| 7093462 | Multi-way valve and refrigerating machine with multi-way valve A multi-way valve, particularly for a refrigerant circuit, includes a housing having a number of inlets and outlets and a chamber with a number of seats respectively associated with an inlet or outlet. The multi-way valve also includes a closing element that can mov... | 08/22/2006 |
| 7082626 | Diverter assembly for roman tub A roman tub faucet with a hand shower diverter mechanism integral to the tub spout. The diverter mechanism is especially suited for applications where service access to only the outer tub finished surface is practical. The faucet eliminates the need to remove panel ... | 08/01/2006 |
| 7069941 | Electronic faucets for long-term operation An electronic faucet (10) mounted on a countertop (12) includes a housing, at least one fluid inlet line (24a, 24b) extending into the housing, a fluid outlet (46) from the housing, a solenoid (142, 143) for op... | 07/04/2006 |
| 7065898 | Module for transferring a substrate A module for transferring a substrate includes a load port for supporting a container to receive a plurality of substrates, a substrate transfer chamber disposed between the load port and a substrate process module, a substrate transfer robot disposed in the substra... | 06/27/2006 |
| 7054149 | Sliding latching mechanism A latching mechanism comprising a bar hook moveably connected to a first component. The bar hook has a first position recessed within the first component and a second position projecting from the first component. A receptacle is disposed within a second component an... | 05/30/2006 |
| 7051995 | Device for generating a reciprocating movement, valve arrangement therefore and pheumatic tool A pressure-fluid driven device for generating a reciprocating movement includes a first (5) and a second relatively movable part (3), wherein a working chamber (7) is intended to be alternatively pressurised and depressurised so as to drive the ... | 05/30/2006 |
| 7051761 | Fill and bleed valve for liquid cooling system A fill and bleed valve for filling a liquid cooling system has a single axially movable plunger, slidable within a central block bore, from a normal operating position to a filling position that opens the cooling system to a supply of coolant. The filling operation ... | 05/30/2006 |
| 7044400 | Solenoid end cap assembly with flat surface A solenoid end cap assembly having a flat mating surface. The flat mating surface is a single planar mating surface and is designed to mate with a substantially flat mating surface of a valve control body. The solenoid, housed within the solenoid end cap, does not p... | 05/16/2006 |
| 7040596 | Solenoid valve for fuel cell A diaphragm is clamped between a solenoid unit disposed in a casing and a second valve body in which hydrogen is introduced. A filter comprising a bottomed cylindrical mesh member is mounted in a first passage defined in the first valve body. A restriction having an... | 05/09/2006 |
| 7036335 | Pneumatically actuated multi-way valve and refrigerating machine with multi-way valve A multi-way valve, in particular for use in the refrigerant circuit of a refrigeration unit, includes a housing with several inlets and outlets and a chamber with several seats that are respectively allocated to one inlet or outlet. A closing member is allocated to ... | 05/02/2006 |
| 7036526 | Valve for liquid separation A valve for liquid separation, especially for analytical or preparative liquid chromatography, includes a valve body having an inlet and at least two outlets connected to the inlet for a flow of liquid. The valve body includes a sealing element having shut-off surfa... | 05/02/2006 |
| 7004192 | Gas pressure regulator An improved pressure regulator suitable for use with paint ball guns comprises a hollow valve body, a valve mechanism for selectively releasing gas from a gas source to an output, and an ON-OFF control. The valve body has a coupling portion, a regulator seat, an out... | 02/28/2006 |
| 6953055 | Pneumatic gate valve with an injection-molded valve housing A pneumatic gate valve includes a valve housing made of injection-molded plastic material and having a plurality of external ports. Received in the valve housing are a plurality of valve bushings disposed in axial-spaced relationship as to define a valve bore and a ... | 10/11/2005 |
| 6952524 | Fluid heater temperature balancing apparatus A fluid heater apparatus supplies heat to wash fluid via a flow path in a thermally conductive body. A heat source is disposed in the thermally conductive body for imparting heat to the body. Fluid flowing through the thermally conductive body in a flow path envelop... | 10/04/2005 |
| 6951225 | Switching valve for ion water generator An ion water generator containing a switching valve for ion water generator that makes it possible to discharge the same species of ion water through a specific faucet despite the conversion of the polarity of chambers in the electrolyzers whenever the switching val... | 10/04/2005 |
