- Email: [email protected]
Autosampler
New Patents
X
4713847 VACUUM
TOILET SYSTEM
Sven Oldfelt, Sigvard Soderstrom, Vaxholm, Sweden assigned to Oy Wartsila Ab A vacuum toilet system comprises a wastereceiving bowl having an outlet, a sewer pipe that can be placed at a pressure that is lower than that in the interior of the waste-receiving bowl, and a discharge valve connected between the sewer pipe and the outlet of the waste-receiving bowl for controlling passage of material from the waste-receiving bowl to the sewer pipe. The discharge valve comprises a valve housing and a closure member. The closure member is movable relative to the valve housing between an pen position and a closed position. A drive mechanism is connected to the closure member for bringing about movement thereof relative to the valve housing. A sensing device provides a control signal in the event that the drive mechanism is not able to cause the closure member to attain its closed position. A control device is connected to the drive mechanism and responds to a user stimulus by causing the drive mechanism to move the closure member from its closed position to its open position and subsequently from its open position towards its closed position. The control device responds to a control signal provided by the sensing device by causing the drive mechanism to move the closure member towards its open position and subsequently towards its closed position.
4713974 AUTOSAMPLER Stanley A Stone assigned to Varian Associates Inc/Scientific Systems Inc An improved microprocessor-controlled autosampler for use in liquid chromatography is shown. The autosampler is fully programmable by the operator and capable of performing complex sample preparation routines. A springloaded sample needle is employed to ensure that the needle makes contact with the bottom of the sample vial as required, for example, when handling extremely small samples. A hollow vial lifter serves as the receptacle for waste wash solvent eliminating the need for a special waste receptacle mechanism. Other improved features include a plurality of interchangeable, codable sample racks, a four-way valve in the syringe line
enabling rapid priming/purging of the hydraulics, and as improved vial stabilizer design.
4714032 POLLUTION-FREE PRESSURIZED COMBUSTION UTILIZING A CONTROLLED CONCENTRATION OF WATER VAPOR Norman Dickinson assigned to Dipac Associates In a continuous pressurized process for the combustion, in the presence of steam and alkali, of solid fuels charged as aqueous slurries, the improvements comprising the elevation of inlet zone temperature in an entrained phase reactor by recirculating hot solid products to the zone, maintaining increased temperature and/or reduced steam partial pressure in the reactor and/or utilizing contaminated water from an associated fuels processing apparatus as a source of slurry and/or reactor temperature control water. An embodiment suitable for a coal-fired gas turbine locomotive is described and illustrated.
4714118 TECHNIQUE FOR STEERING AND MONITORING THE ORIENTATION OF A POWERED UNDERGROUND BORING DEVICE Glen Baker, Albert W Chau, John E Mercer assigned to FlowMole Corporation A technique for providing a continuous underground tunnel is disclosed herein. This technique utilizes an elongated boring device including a forward facing, off-axis high pressure fluid jet which is rotated about the elongated axis of the device while the latter is urged forward through the soil, whereby to cause the device to bore a tunnel through the soil as it moves forward. In accordance with one feature of this technique, the boring device is steered by modulating the speed and/or the direction of rotation of its offaxis fluid jet in a way which depends upon the desired direction to be taken by the boring device within the soil. In accordance with another feature of the overall technique, the pitch angle of the boring device, as defined by its elongation axis, is monitored relative to a horizontal ground
X
4713847 VACUUM
TOILET SYSTEM
Sven Oldfelt, Sigvard Soderstrom, Vaxholm, Sweden assigned to Oy Wartsila Ab A vacuum toilet system comprises a wastereceiving bowl having an outlet, a sewer pipe that can be placed at a pressure that is lower than that in the interior of the waste-receiving bowl, and a discharge valve connected between the sewer pipe and the outlet of the waste-receiving bowl for controlling passage of material from the waste-receiving bowl to the sewer pipe. The discharge valve comprises a valve housing and a closure member. The closure member is movable relative to the valve housing between an pen position and a closed position. A drive mechanism is connected to the closure member for bringing about movement thereof relative to the valve housing. A sensing device provides a control signal in the event that the drive mechanism is not able to cause the closure member to attain its closed position. A control device is connected to the drive mechanism and responds to a user stimulus by causing the drive mechanism to move the closure member from its closed position to its open position and subsequently from its open position towards its closed position. The control device responds to a control signal provided by the sensing device by causing the drive mechanism to move the closure member towards its open position and subsequently towards its closed position.
4713974 AUTOSAMPLER Stanley A Stone assigned to Varian Associates Inc/Scientific Systems Inc An improved microprocessor-controlled autosampler for use in liquid chromatography is shown. The autosampler is fully programmable by the operator and capable of performing complex sample preparation routines. A springloaded sample needle is employed to ensure that the needle makes contact with the bottom of the sample vial as required, for example, when handling extremely small samples. A hollow vial lifter serves as the receptacle for waste wash solvent eliminating the need for a special waste receptacle mechanism. Other improved features include a plurality of interchangeable, codable sample racks, a four-way valve in the syringe line
enabling rapid priming/purging of the hydraulics, and as improved vial stabilizer design.
4714032 POLLUTION-FREE PRESSURIZED COMBUSTION UTILIZING A CONTROLLED CONCENTRATION OF WATER VAPOR Norman Dickinson assigned to Dipac Associates In a continuous pressurized process for the combustion, in the presence of steam and alkali, of solid fuels charged as aqueous slurries, the improvements comprising the elevation of inlet zone temperature in an entrained phase reactor by recirculating hot solid products to the zone, maintaining increased temperature and/or reduced steam partial pressure in the reactor and/or utilizing contaminated water from an associated fuels processing apparatus as a source of slurry and/or reactor temperature control water. An embodiment suitable for a coal-fired gas turbine locomotive is described and illustrated.
4714118 TECHNIQUE FOR STEERING AND MONITORING THE ORIENTATION OF A POWERED UNDERGROUND BORING DEVICE Glen Baker, Albert W Chau, John E Mercer assigned to FlowMole Corporation A technique for providing a continuous underground tunnel is disclosed herein. This technique utilizes an elongated boring device including a forward facing, off-axis high pressure fluid jet which is rotated about the elongated axis of the device while the latter is urged forward through the soil, whereby to cause the device to bore a tunnel through the soil as it moves forward. In accordance with one feature of this technique, the boring device is steered by modulating the speed and/or the direction of rotation of its offaxis fluid jet in a way which depends upon the desired direction to be taken by the boring device within the soil. In accordance with another feature of the overall technique, the pitch angle of the boring device, as defined by its elongation axis, is monitored relative to a horizontal ground