seal (sg) to/against

English to German Tech/Engineering Automation & Robotics Vakuum, Venturivorrichtung, Saugnäpfe

[0002] The vacuum generated at the cup may be provided by a venturi nozzle, whereby pressurized air is supplied or provided to a venturi nozzle at the cup and the air forced through the venturi nozzle creates a vacuum at the cup ***to seal the cup to the object surface***. The venturi nozzle has an inlet port connected to the air supply and an exit port through which the air is blown. The internal cavity defined by the vacuum cup and object is in fluid communication with the venturi nozzle so that air is drawn out of the cavity as the air is blown through the venturi nozzle. When the air supply is deactivated, the vacuum within the cup cavity may dissipate through the port that connects the vacuum cup cavity to the venturi nozzle and through the exit port. Thus, there may be a delay between when the air supply is deactivated and when the vacuum dissipates a sufficient amount to readily release the vacuum cup from the object.


... The vacuum cup is configured ***to substantially seal against the object*** when the movable sealing element is at the sealing position and the vacuum generating device generates at least a partial vacuum in the vacuum passageway. (...)