82 results about "Antechamber" patented technology

The invention is directed to an arrangement for metering target material for the generation of short-wavelength electromagnetic radiation from an energy beam induced plasma, in particular X radiation and EUV radiation. The object of the invention is to find a novel possibility for metering target material for the generation of short-wavelength electromagnetic radiation from an energy beam induced plasma which makes it possible to provide reproducibly supplied mass-limited targets in such a way that only the amount of target material for plasma generation that can be effectively converted to radiating plasma in the desired wavelength region arrives in the interaction chamber and, therefore, debris generation and the gas burden in the interaction chamber are minimized. This object is met, according to the invention, in that an injection device is provided for target generation, wherein means are arranged upstream of the nozzle in a nozzle chamber for a defined, temporary pressure increase in order to introduce an individual target into the interaction chamber exclusively when required, and an antechamber is arranged around the nozzle for generating a quasistatic pressure upstream of the interaction chamber, wherein an equilibrium pressure in the antechamber prevents the escape of target material as long as there is no pressure increase in the nozzle chamber.

An inkjet nozzle device includes a main chamber having a floor, a roof and a perimeter wall extending between the floor and the roof. The main chamber includes: a firing chamber having a nozzle aperture defined in the roof and an actuator for ejection of ink through the nozzle aperture; an antechamber for supplying ink to the firing chamber, the antechamber having a main chamber inlet defined in the floor; and a baffle structure partitioning the main chamber to define the firing chamber and the antechamber, the baffle structure extending between the floor and the roof. The firing chamber and the antechamber have a common plane of symmetry.

A series of doors, locks, walls and signage present a vestibule room or safety enclosure for use in controlling access into a secured space. Exterior signage regarding weapon detection equipment and the appearance of a mantrap enclosure is used to dissuade visitors from bringing weapons into the secured area. A person within the safety enclosure may always exit through the exterior door and thus avoid harm in the event of a natural disaster.

A device for determining a filling level of a container is provided, having a damping cup, a measuring section extending vertically inside the damping cup, and having an ultrasound converter arranged at its lower end region, and at least one antechamber. A calming structure is arranged in at least a part of at least one antechamber, to achieve as much degassing of the liquid as possible. The part of the antechamber having the calming structure is designed to be open towards the top over a large area and is connected, via a venting channel, with a vent in the upper region of the device.

A fuel level gauge includes a measuring pipe configured as a riser pipe that has a fuel inlet opening at one end region defines a measuring distance. The fuel level gauge also includes a fuel level sensor associated with the measuring pipe and disposed the vicinity of the fuel inlet opening and having a measurement-sensitive sensor area for purposes of measuring the fuel filling height in the measuring pipe. A fuel-permeable, thin-walled enveloping element surrounding the measuring pipe tightly so as to seal it in a first area of the measuring pipe and enclosing a second area of the measuring pipe at a predefined distance over a large surface. The second area encompasses at least the fuel inlet opening and the measurement-sensitive area of the fuel level sensor, and forms a large-volume antechamber upstream from the fuel inlet opening in the second area between an inside of the enveloping element and an outside of the measuring pipe.