125224 results about "Mechanics" patented technology

A method of parallel shift operation of multiple reactors includes: (i) continuously supplying n gases numbered 1 to n simultaneously to n gas ports via n main gas lines, respectively, at a constant flow rate, wherein one of branch gas lines of each main gas line is in an open state so that the inflow rates of the respective reactors are equal, and the outflow rates of the respective reactors are equal; and (ii) while maintaining the inflow rates and the outflow rates of the respective reactors, simultaneously closing the one of the branch gas lines of each main gas line in the open state and opening another one of the branch gas lines of each main gas line so that different numbered gases are continuously supplied to the respective reactors in parallel without changing the inflow rates and the outflow rates of the reactors.

The performance of electro-wetting displays can be improved by: (a) providing a concealment member (112) which conceals the moving fluid (108) when that fluid (108) is confined to a small area; (b) using the moving fluid to cover one or more sections of a filter or reflector having differently-colored sections; (c) moving the moving fluid between the rear surface and a side surface of a microcell; (d) using as a substrate for a moving fluid a substrate resistant to wetting by the fluid but pierced by multiple conductive vias capped with a material wetted by the fluid; and (e) coloring the moving fluid with pigments or nanoparticles.

A method for forming a thin film includes: supplying an additive gas, a dilution gas, and a silicon-containing source gas into a reaction chamber wherein a substrate is placed; forming a thin film on the substrate by plasma CVD under a given pressure with a given intensity of radio-frequency (RF) power from a first point in time to a second point in time; at the second point in time, stopping the supply of the silicon-containing source gas; and at the second point in time, beginning reducing but not stopping the RF power, and beginning reducing the pressure, wherein the reduction of the RF power and the reduction of the pressure are synchronized up to a third point in time.

Providing pressurized fracturing fluid with a fracturing pump transport comprising a first fracturing pump and a second fracturing pump that are coupled on opposite sides of a dual shaft electric motor. A first drive line assembly comprising a first engagement coupling that allows for selective engagement and/or disengagement of the first fracturing pump with the dual shaft electric motor. A second drive line assembly comprising a second engagement coupling that allows for selective engagement and/or disengagement of the second fracturing pump with the dual shaft electric motor. The fracturing pump transport also comprising an engagement panel that allows for selective engagement or disengagement at the first engagement coupling based on receiving a remote command.

A combined patient interface and integrated exhaust assembly that passes a controlled flow of gas from an interior of a patient interface to ambient atmosphere at a predetermined flow rate irrespective of variations of pressure in the interior of the patient interface device relative to ambient atmosphere. Control of the flow of exhaust gas is achieved by varying the effective cross sectional area of the exhaust path communicating the interior of the patient interface with ambient atmosphere based on the pressure in the interior of the patient interface relative to ambient atmospheric pressure.

In stimulation treatments to increase the production of hydrocarbons from subterranean formations, especially in treatments including hydraulic fracturing followed by gravel packing, desirable short wide fractures are created and filled with proppant by deliberately including in the first fluid/proppant slurry pumped a sufficiently high concentration of a bridging-promoting material, such as fibers, that reduces the mobility of the slurry when it dewaters so that screenout at or near the tip occurs.

Pressure swing adsorption (PSA) separation of a feed gas mixture is performed within an apparatus having typically a single prime mover powering a feed compressor for one or multiple rotary PSA modules in parallel, each module including a rotor with a large number of angularly spaced adsorber elements, with valve surfaces between the rotor and a stator so that individual adsorber elements are opened to compartments for staged pressurization and blowdown, with thermally boosted energy recovery from staged expansion of countercurrent blowdown and light reflux gases, and a plurality of adsorber elements opened at any instant to each compartment so that each compressor and expander stage operates under substantially steady conditions of flow and pressure.

An instrument and method for applying thermal energy to targeted tissue. An instrument and method for tissue thermotherapy. In one embodiment, a method includes providing a vapor source comprising a pump configured for providing a flow of liquid media from a liquid media source into a vaporization chamber having a heating mechanism, actuating the pump to provide the liquid into the vaporization chamber, applying energy from the heating mechanism to convert a substantially water liquid media into a minimum water vapor level for causing an intended effect in tissue. For examples such levels can comprise at least 60% water vapor, at least 70% water vapor, at least 80% water vapor or at least 90% water vapor for causing an intended effect in tissue.

A tubing string assembly is disclosed for fluid treatment of a wellbore The tubing string can be used for staged wellbore fluid treatment where a selected segment of the wellbore is treated, while other segments are sealed off The tubing string can also be used where a ported tubing string is required to be run-m in a pressure tight condition and later is needed to be in an open-port condition A sliding sleeve in a tubular has a driver selected to be acted upon by an inner bore conveyed actuating device, the driver drives the generation of a ball stop on the sleeve.

An air drag reducing apparatus for use with a vehicle having a rear end closed by a pair of doors consists of a rectangular shaped panel having a leading edge hingedly connected to the vehicle, the panel extending at about 15 degrees relative to the rearward projection of a side of the vehicle. An element positions the panel in a drag reducing position; this element is such that it allows the panel to be moved between the door and the side of the vehicle as the door is opened and moved to a position adjacent the side of the vehicle. As the door is moved back from the opened position to a closed position, the element causes the panel to return to its drag reducing position. The rear of a vehicle may include two side panels with or without two top panels.

An apparatus for controlling fluid flow into a wellbore tubular includes a flow control member that selectively aligns a port with an opening in communication with a flow bore of the wellbore tubular. The flow control member may have an open position wherein the port is aligned with the opening and a closed position wherein the port is misaligned with the opening. The flow control member moves between the open position and closed position in response to a change in drag force applied by a flowing fluid. A biasing element urges the flow control member to the open or the closed position. The apparatus may include a housing receiving the flow control member. The flow control member and the housing may define a flow space that generates a Couette flow that causes the drag force. In embodiments, the flow space may include a hydrophilic and/or water swellable material.

A method of cementing a tubular string in a wellbore includes: deploying the tubular string into the wellbore; pumping cement slurry into the tubular string; launching a cementing plug after pumping the cement slurry; propelling the cementing plug through the tubular string, thereby pumping the cement slurry through the tubular string and into an annulus formed between the tubular string and the wellbore; and controlling flow of fluid displaced from the wellbore by the cement slurry to control pressure of the annulus.

A liquid reagent dispensing assembly, comprising a gas-pressurizable vessel including a floor, and an interior volume bounded by interior wall and floor surfaces. A dip-tube liquid discharge conduit is employed for discharging liquid from the gas-pressurized vessel. The vessel is provided with a liquid level sensor for sensing liquid reagent level in the vessel interior volume. The floor of the vessel has a cavity therein extending downwardly from the surface of the floor, and the lower end of the dip tube is positioned in the cavity. The dispensing assembly of the invention may usefully be employed for dispensing of reagents such as precursors for deposition of materials in the manufacture of semiconductor materials and devices, and achieves a high level of withdrawal of the reagent liquid from the vessel.

A damper includes a piston rod, a damping piston, at least one cylinder containing a damping liquid, a fixed partition member for partitioning the interior of the damper into two liquid chambers, a pressure source, and a valve in communication with the pressure source which reacts as a function of the pressure. The valve can also be in communication with additional forces, such as mechanical spring forces, which can be adjustable. The valve can include a pressure intensifier. The valve generates fluid flow resistance during flow of liquid in a first direction through the partition member. The fluid flow resistance in the first direction varies according to the amount of force communicated to the valve by the pressure source and any additional forces. The partition member can include means for providing low-resistance return flow of liquid in a second direction.