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...When G.G. Hubbard learned of his future son-in-law's invention, he called it "only a toy." His daughter was engaged to a young man named Alexander Graham Bell.
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| Number | Title | Issue Date |
| 7325781 | Automatic bathroom flushers with modular design A bathroom flusher includes a flusher body, a valve assembly, an electronic control system, and a flusher cover. The flusher body includes an inlet and an outlet, and is designed to accommodate the valve assembly that controls water flow between the inlet and the ou... | 02/05/2008 |
| 7273272 | Liquid supply device and image forming apparatus The liquid supply device supplies ejection liquid to a plurality of ejection heads from a liquid tank, and comprises: a supply pipe which connects the liquid tank to the plurality of ejection heads, an upstream end portion of the supply pipe being connected to the l... | 09/25/2007 |
| 7188822 | Enclosures for automatic bathroom flushers A bathroom flusher includes a flusher body, a valve assembly, an electronic control system, and a flusher cover. The flusher body includes an inlet and an outlet, and is designed to accommodate the valve assembly that controls water flow between the inlet and the ou... | 03/13/2007 |
| 7156363 | Bathroom flushers with novel sensors and controllers A bathroom flusher (10) includes a body having an inlet (12) in communication with a supply line and an outlet (16) in communication with a flush conduit, a valve assembly in the body positioned to close water flow between the inlet and the outl... | 01/02/2007 |
| 7144616 | Microfabricated elastomeric valve and pump systems A method of fabricating an elastomeric structure, comprising: forming a first elastomeric layer on top of a first micromachined mold, the first micromachined mold having a first raised protrusion which forms a first recess extending along a bottom surface of the fir... | 12/05/2006 |
| 7140393 | Non-contact shuttle valve for flow diversion in high pressure systems A valve for redirecting flow in a supercritical fluid or other high pressure processing system is disclosed. In high pressure supercritical carbon dioxide (SCCO2) equipment for semiconductor wafer processing, a major hurtle in providing clean equipment and clean waf... | 11/28/2006 |
| 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 |
| 6948697 | Apparatus and method for controlling fluid flow An actuator base, bobbin, and pole piece form a pocket for an armature that a flexible membrane encloses to form an armature chamber filled with an incompressible fluid. The membrane protects the armature from exposure to corrosive fluids flowing in a conduit. Condu... | 09/27/2005 |
| 6783736 | Cartridge for analyzing a fluid sample A cartridge for analyzing a fluid sample has a body defining at least first and second channels and a cavity separating the channels. An end of the first channel is positioned on a first side of the cavity, and an end of the second channel is positioned on a second ... | 08/31/2004 |
| 6668848 | Pneumatic volume booster for valve positioner The system controls of a pneumatically operated valve using an electrical control signal from a controller. A pilot circuit of the system has multiple piezo valves that are subject to electrical signals from the controller to provide pneumatic output sign... | 12/30/2003 |
| 6612335 | 3-Way control valve A 3-way hydraulic valve comprising a body formed with an inlet port for connecting to a pressurized supply line, a first outlet port for connecting to an outlet line and being in flow communication with the inlet port, a gate intermediate the inlet port a... | 09/02/2003 |
| 6505814 | Fluid controller A fluid controller (1), having a valve body (4) having flow paths used as inlet and outlet for a bonnet (5), and an operating mechanism (7) moving the diaphragm in vertical direction, wherein the flow paths of the valve body communicates with each other t... | 01/14/2003 |
| 6453725 | Gas chromatograph sample and column-switching valve A multiport, diaphragm sealed valve suitable for use as both a sampling and column switching valve. The valve is constructed to internally block fluid communication between one or more pairs of ports in a valve operating mode. Such blocking may be used to... | 09/24/2002 |
| 6431213 | Internally divided water pipe and diverter valve therefor Pipe for crop irrigation--has inlet and outlet along length with internal flexible longitudinal dividing wall movable between first flow position and second position where fluid is unable to pass through outlet.... | 08/13/2002 |
| 6289933 | Diaphragm valve A diaphragm valve is described, which has a valve body having disposed within it an upper chamber and a lower chamber. The valve body also has first and second connection members that extend from the valve body at substantially a right angle, and where th... | 09/18/2001 |
| 6267146 | Piezoelectric valve When a drive signal is not applied to a piezoelectric element 42, a diaphragm 38 is contacted with a valve seat 52 to disconnect diaphragm chambers 24a, 24b from a passage 54. In this case, even if the pressure of a fluid introduced into the diaphragm cha... | 07/31/2001 |
| 6220299 | Two-way valve Valves are disclosed including a housing having at least one fluid inlet and at least one fluid outlet, a valve seat for at least one of the fluid inlets and fluid outlets, a diaphragm movable between a first position engaged with the valve seat and a sec... | 04/24/2001 |
| 6116281 | Control devices Disclosed is a control device for use in fluid systems. In one embodiment the fluid is a liquid. A substantially cylindrical housing has therein a symmetrical cavity. The cavity is divided in upper and lower chambers by a circular and planar diaphragm. Th... | 09/12/2000 |
| 6082398 | Device for regulating the flow of gases having substantially different molar masses A device for regulating the flow of gases having substantially different molar masses, comprising an always-open feed line connected to a gas source at a defined pressure and to an apparatus a first calibrated restriction placed in the feed line, a bypass line... | 07/04/2000 |
| 5937886 | Method and device for delivering a pure gas charged with a predetermined quantity of at least one gaseous impurity to an apparatus A method of delivering a pure gas charged with a predetermined quantity of at least one gaseous impurity to an apparatus, comprising the steps of mixing at least two different auxiliary gases, including the impurity to form a mixture, diluting a sampled q... | 08/17/1999 |
| 5794641 | Valve control Embodiments described herein relate to methods and structures for controlling a valve. One embodiment provides a valve control comprising a first valve fluidly connected with a first fluid conveying conduit and a second fluid conveying conduit. The first ... | 08/18/1998 |
| 5653422 | Solenoid valve The solenoid valve, which can be used as a single valve to control small flow quantities, or also as a pilot valve for valves controlling larger flow quantities of a medium, has a narrow, oblong cuboid valve housing (10), in which two seal seats (38, 40) ... | 08/05/1997 |
| 5645538 | Needleless valve for use in intravenous infusion An IV component has at least one opening and a valve associated with the opening. The valve is normally closed to prevent fluid communication through the opening. A needleless connector can be engaged with a male element of the valve to open the valve and... | 07/08/1997 |
| 5623965 | Low effort vacuum valve assembly with rotary actuator A rubber valve plate is sandwiched between a stator and a cover. Ports in the stator for coupling to a vacuum source and vacuum motors are aligned with poppets molded in the valve plate. A manifold in the plate joins regions surrounding the valves to coup... | 04/29/1997 |
| 5460202 | Three-way piezoelectric valve A three-way valve having a valve body with an internal output chamber. A supply means is in fluid communication with the output chamber for providing a source of fluid to pressurize the output chamber and thereby obtain a desired device output signal. An ... | 10/24/1995 |
| 5335696 | Three-way weir style valve The invention disclosed is a three-way weir valve. The valve housing has a common flow duct and two additional flow ducts, all connectable to external flow lines. A weir with two valve seats on opposite sides of the weir separates the common flow duct fro... | 08/09/1994 |
| 5327937 | Branched valve A branched valve includes a main flow passage and a branch flow passage provided in a main body, a weir provided between the main and branch flow passages, and a valve disc which can contact with and come off from the weir and which selectively connects a... | 07/12/1994 |
| 5281049 | Air direction control means for vehicle climate control means A rotatable driver comprising a Geneva type wheel is operated by a turning knob associated with climate designations on a mounting dashboard panel. The driver has drive pins that engage slots in tangential movement in driven links connected to push-pull c... | 01/25/1994 |
| 5246204 | Sampling valve A sampling valve is disclosed comprising a stretchable hollow valve plug mounted on the front end of an axially displaceable valve stem. The plug is provided on its inner surface with a bead projecting into a groove in the stem. When the stem is withdrawn... | 09/21/1993 |
| 5222523 | Valve for controlling connection to branch passage A valve comprises a valve body (2) defining a through passage (3), a branch passage (7), and an aperture (11) in the wall of the through passage. A closure member (12) is movable between a first position in which the closure member seals the aperture and ... | 06/29/1993 |
| 5207149 | Apparatus for the preparation of hot drinks Apparatuses for the preparation of different hot drinks, such as in particular espresso machines, conventionally have a multiway valve (2), which is used for supplying hot water or superheated steam produced in a water heater to different means, such as c... | 05/04/1993 |
| 5113906 | Multiple rotary control valve for use with a sterilizing apparatus A multiple rotary control valve of the pinch type for use in conjunction with a steam sterilizing apparatus. The valve comprises at least two side by side cams, each having cylindrical and flat portions for respectively pressing and releasing, in the prop... | 05/19/1992 |
| 5095931 | Method and apparatus for opening and closing multi-way valve The present invention is concerned with method and apparatus for opening and closing a multi-way valve. The present invention discloses method and apparatus for controlling the flow of fluid into a plurality of fluid distributing pipes, wherein an elastic... | 03/17/1992 |
| 5082025 | Antegrade-retrograde switch and occluder and system for using the same An apparatus and system for administering cardioplegic solution to a heart during open heart surgery. A source of solution is delivered to a control switch from a single tube source and the tube is divided at a "Y" connector into two tubes, one for antegr... | 01/21/1992 |
| 5035259 | Fluid flow control valve A valve for use e.g. as a pilot valve in an offshore water deluge fire fighting system has a ported cylindrical body and an elastomeric sleeve defining between them an annular passage for flow between the various ports. Selected ports can be closed by mea... | 07/30/1991 |
| 4977929 | Weir valve sampling/injection port The present weir valve includes a weir disposed along a flow passage. A port at the other side of the weir is open to the flow passage when the diaphragm is lifted off the weir.... | 12/18/1990 |
| 4930401 | Valve system and arrangement for on-line valve replacement Several embodiments are disclosed of an automatic shutoff valve apparatus for permitting removal, repair, or replacement of a control valve from a mounting base without deactivating a complete system. In addition, a redundancy arrangement is disclosed whe... | 06/05/1990 |
| 4903694 | Ventilating apparatus for a protective suit The ventilating apparatus for a protective suit has a portable, comparatively small housing in which a blower driven by a battery-powered electric motor is mounted. The high pressure side of the blower is provided with a plurality of different connectors ... | 02/27/1990 |
| 4869282 | Micromachined valve with polyimide film diaphragm A micromachined miniature valve used for gas chromatography has very low valve and interconnection dimensions to reduce the fluid volume inherent in other gas switching valves to thereby provide accurate measurements involving small gas flows. In order to... | 09/26/1989 |
| 4852551 | Contamination-free endoscope valves for use with a disposable endoscope sheath An endoscope and valve system specially adapted for use with a disposable sheath having a plurality of channels and respective resilient tubes extending therefrom. In one embodiment, the resilient tubes extend along grooves formed in the side of an endosc... | 08/01/1989 |
