{
  "abstract": "A zoned vacuum gripping tool comprising one tool-change interface, three suction cups, one ejector, three zone branches, three pressure sensors, one contact detector and one vent valve. When the suction cups reach the workpiece, the suction cups are evacuated by the ejector. After the workpiece has reached the set-down position, the vacuum circuit is vented by the vent valve. The arrangement is a proposed configuration composed from a typed library of mechanism blocks derived from published patents; it has not been constructed.",
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    "robotics-automation/end-effectors/vacuum-grippers",
    "sensors-controls-machine-vision/position-and-presence-sensing",
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    "industrial-motion-power-transmission/fluid-power/valves-and-manifolds"
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  "keywords": [
    "zoned vacuum tool",
    "tool-change interface",
    "suction cup",
    "ejector",
    "zone branch",
    "pressure sensor",
    "contact detector",
    "vent valve",
    "compressed air supply",
    "contact sensing"
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  "language": "en",
  "license": {
    "name": "Creative Commons Attribution 4.0 International",
    "url": "https://creativecommons.org/licenses/by/4.0/"
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  "publication_id": "OT-2026-000008788",
  "published_at": "2026-09-17T08:10:36.030441Z",
  "publisher": "Nebula Innovations Limited",
  "record_type": "disclosure",
  "schema": "opentechnical-publication-manifest/1.0",
  "supersedes": "OT-2026-000004467",
  "title": "Three cup vacuum gripper, three zone face, three stage ejector, pressure sensor per zone, vented after set-down, on a tool changer",
  "uuid": "01a0ae6a-e46c-737f-b739-31fab3934b9c"
}