{
  "abstract": "A zoned vacuum gripping tool comprising one tool-change interface, three bellows cups, one plant vacuum connection, three isolation valves, three zone branches, one contact detector and one vent valve. When the bellows cups reach the workpiece, the bellows cups are evacuated by the plant vacuum connection. 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",
    "industrial-motion-power-transmission/fluid-power/valves-and-manifolds",
    "robotics-automation/end-effectors/tool-changers"
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  "keywords": [
    "zoned vacuum tool",
    "tool-change interface",
    "bellows cup",
    "plant vacuum connection",
    "isolation valve",
    "zone branch",
    "contact detector",
    "vent valve",
    "contact sensing",
    "plant vacuum supply"
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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-2026-000007891",
  "published_at": "2026-09-17T08:10:14.564317Z",
  "publisher": "Nebula Innovations Limited",
  "record_type": "disclosure",
  "schema": "opentechnical-publication-manifest/1.0",
  "supersedes": "OT-2026-000003569",
  "title": "Three bellows cup vacuum gripper, three zone face, per zone isolation, plant vacuum fed, vented after set-down, on a tool changer",
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