72results about How to "Long dwell time" patented technology

A pressing arrangement including at least one first fabric and second fabric both being permeable. A paper web is disposed between the first fabric and the second fabric. A pressure producing element is in contact with the first fabric. A support surface of a supporting structure is in contact with the second fabric. A differential pressure is provided between the first fabric and the support surface that acts on the first fabric, the paper web, and the second fabric, whereby the paper web is subjected to mechanical pressure and experiences a predetermined hydraulic pressure so as to cause water to be drained from the paper web. The pressing arrangement is structured and arranged to allow air to flow in a direction from the first fabric through the paper web and through the second fabric.

A forming fabric for an ATMOS system or a TAD machine. The forming fabric includes a permeability value of between approximately 100 cfm and approximately 1200 cfm, a paper surface contact area of between approximately 0.5% and approximately 90% when not under pressure and tension, and an open area of between approximately 1.0% and approximately 90%. A belt press for a paper machine can utilize the forming fabric. This Abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way.

Method and apparatus for thermally processing polyester pellets, e.g., polyethylene terephthalate pellets, in order to achieve a partial crystallization, whereby the polyester melt is fed to an underwater pelletizer and pelletized, the pellets obtained are fed to a water / solids separating device and the dried pellets are fed at a pellet temperature of greater than 100° C. to an agitation device that the pellets leave at a pellet temperature of over 100° C.

A dewatering fabric for an ATMOS system or a TAD machine that includes a caliper of between approximately 0.1 mm and approximately 15 mm, a permeability value of between approximately 1 cfm and approximately 500 cfm, an overall density of between approximately 0.2 g / cm3 and approximately 1.10 g / cm3, and a weight of between approximately 100 g / m2 and approximately 3000 g / m2. A belt press for a paper machine can utilize the dewatering fabric. This Abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in anyway.

System for drying a tissue or hygiene web. The system includes a permeable structured fabric carrying the web over a drying apparatus. A permeable dewatering fabric contacts the web and is guided over the drying apparatus. A mechanism is utilized for applying pressure to the permeable structured fabric, the web, and the permeable dewatering fabric at the drying apparatus. This Abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way.

In a master oscillator power amplifier, a driver (208) of a diode laser (202) is specially controlled to generate a set of two or more injection laser pulses that are injected into a power amplifier (204) operated in an unsaturated state to generate a set (50) of laser pulses (52) that replicate the temporal power profile of the injection laser pulses to remove a conductive link (22) and / or its overlying passivation layer (44) in a memory or other IC chip. Each set (50) includes at least one specially tailored pulse (52) and / or two or more pulses (50) having different temporal power profiles. The duration of the set (50) is short enough to be treated as a single “pulse” by conventional positioning systems (380) to perform on-the-fly link removal without stopping.

The present invention provides compositions for treating and / or preventing signs and symptoms associated with dry eye and / or ocular irritation, and methods of use thereof. Such compositions are provided in novel ophthalmic formulations that are comfortable upon instillation in the eye. Methods of manufacture are also provided.

A permeable belt, a belt press including a roll having an exterior surface and the permeable belt, and a method of drying or pressing a web with the permeable belt. The permeable belt can be tensioned to at least 30 KN / m. A side of the permeable belt has an open area of at least approximately 25% and a contact area of at least approximately 25%. This Abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way.

Carbon blacks doped with elements that are not carbon, wherein pairs of carbon atoms have been replaced by iso-electronic pairs of elements or combinations of elements. They can be used as a pigment or filler in rubber, plastics, paints, inks or the like.

A multi-stage fusing system for fixing toner images to copy substrates of various weights has a primary fuser and a secondary fuser in series with the primary fuser. Various weights of print substrates may have toner images fixed thereon by the primary fuser. The various print substrates are then transmitted to the secondary fuser or directly to a finishing area. The secondary fuser is designed specifically for heavier weight substrates and a bypass paper path is provided for allowing lighter weight substrates to bypass the secondary fuser.

In a method and apparatus for three-dimensional imaging of a moving examination subject, particularly heart imaging with an examination apparatus having at least one C-arm with a radiation source and a radiation receiver, the C-arm rotates around the examination subject at least once through 180° plus the radiation fan angle during the time span in which a contrast agent is in the examination subject for the registration of the two-dimensional projection images, on the basis of which a three-dimensional image reconstruction ensues.

A system for drying one of a tissue and a hygiene web including a drying apparatus, a permeable structured fabric, a permeable dewatering fabric and a mechanism for applying pressure. The permeable structured fabric carries the web over the drying apparatus. The permeable dewatering fabric contacts the web and is guided over the drying apparatus. The mechanism for applying pressure, applies pressure to the permeable structured fabric, the web, and the permeable dewatering fabric at the drying apparatus.

The invention provides a process for the preparation of polyamines of the diphenylmethane series. This process comprises a) reacting aniline and formaldehyde in a molar ratio of 1.5:1 to 6:1, in the presence of an acid catalyst at temperatures of 20° C. to 100° C., in which the water content in the acid reaction mixture is <20 wt. % and a degree of protonation of <15% is established, and b) increasing the temperature of the reaction to a temperature of 110° C. to 250° C. when the ratio of the weight contents of p-aminobenzylaniline to 4,4′-MDA in the reaction mixture falls below a value of 1.00.

A belt press for a paper machine, the belt press including a roll having an exterior surface and a permeable belt. The permeable belt has a first side and is guided over a portion of the exterior surface of the roll. The permeable belt has a tension of at least approximately 30 KN / m, the first side has an open area of at least approximately 25% and a contact area of at least approximately 10%.

A process for removing hydrocarbons such as oil from produced water entrains high concentrations of very small gas bubbles within produced water inside a vertically-oriented primary separation tank by means of aerators immersed in the water inside the tank. Oil droplets coat the gas bubbles which form a buoyant oil-rich froth phase overlying a gas-rich liquid phase. The froth phase flows out through a discharge port in a preferably conical upper section of the primary tank, for disposal or recovery of oil as appropriate. Solid contaminants not borne by the froth phase may be intermittently settled out of the liquid phase and removed for treatment or disposal through a discharge port in a preferably conical lower section of the primary tank. Clean processed water is drawn a medial region of the primary tank for re-use as appropriate. In a preferred embodiment, the froth phase passes into a secondary separation tank for further separation of contaminants by means of gravity and / or supplemental aeration.

The invention relates to a liquid-cooled piston (10) for internal combustion engines having a cooling duct (16) that has an annular shape or consists of several annular segments, said duct having a substantially constant cross section along its extension and extending in an undulated manner at least in certain areas in the direction of the axis of the piston (18).

An air conditioner device includes a freestanding housing. An ion generator, which is positioned in the housing, includes at least one removable electrode. A germicidal lamp, which is also within the housing, emits UV radiation upon being energized. A safety mechanism cuts off power to at least one of the lamp and the ion generator when the removable electrode is removed from the housing. A removable panel is adapted to be secured to the housing. A further safety mechanism cuts-off power to at least one of the lamp and the ion generator when the removable panel is removed from the housing.

An improved endotracheal tube that has a modified surface coating that can elute active agents is described. The coated surface and the use of the device according to a new method or regime for a healthcare worker to care for patients can help reduce the likelihood of ventilator acquire pneumonia or other infections in a patient's respiratory passages.

According to one embodiment, an armor system comprises a plurality of polylithic composite armor panels. Each of the polylithic composite armor panels comprising a plurality of layers. The plurality of layers comprise at least two layers having a different Young's modulus. Each of the plurality of layers comprising a plurality of sheets. The plurality of sheets comprise one or more fibers. The plurality of sheets have one or more respective weave characteristics.