{
  "abstract": "A zoned vacuum gripping tool comprising one tool-change interface, four suction cups, one ejector, one isolation valve, four zone branches, four pressure sensors, one contact detector and one vent valve. When the suction cups reach the workpiece, the suction cups are evacuated by the ejector. Before the workpiece reaches the set-down position, the vacuum circuit is vented by the vent valve while the workpiece is above the receiving surface. 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",
    "sensors-controls-machine-vision/force-and-pressure-sensing/vacuum-sensors",
    "industrial-motion-power-transmission/fluid-power/valves-and-manifolds"
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    "words": 1413
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  "keywords": [
    "zoned vacuum tool",
    "tool-change interface",
    "suction cup",
    "ejector",
    "isolation valve",
    "zone branch",
    "pressure sensor",
    "contact detector",
    "vent valve",
    "common isolation"
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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-2026-000008228",
  "published_at": "2026-09-17T08:10:14.564317Z",
  "publisher": "Nebula Innovations Limited",
  "record_type": "disclosure",
  "schema": "opentechnical-publication-manifest/1.0",
  "supersedes": "OT-2026-000003906",
  "title": "Four cup vacuum gripper, four zone face, common isolation valve, single stage ejector, pressure sensor per zone, vented before set-down, on a tool changer",
  "uuid": "01a0ae6a-908d-74aa-95c9-23819221ad5d"
}