{
  "abstract": "A zoned vacuum gripping tool comprising one mounting flange, four suction cups, one plant vacuum connection, four zone branches, one contact detector and one vent valve. When the suction cups reach the workpiece, the suction cups are evacuated by the plant vacuum connection. 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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    "industrial-motion-power-transmission/fluid-power/valves-and-manifolds",
    "industrial-components-safety-infrastructure/plant-utilities/vacuum-supply"
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  "keywords": [
    "zoned vacuum tool",
    "mounting flange",
    "suction cup",
    "plant vacuum connection",
    "zone branch",
    "contact detector",
    "vent valve",
    "contact sensing",
    "drop release",
    "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-2026-000008771",
  "published_at": "2026-09-17T08:10:36.030441Z",
  "publisher": "Nebula Innovations Limited",
  "record_type": "disclosure",
  "schema": "opentechnical-publication-manifest/1.0",
  "supersedes": "OT-2026-000004450",
  "title": "Four cup vacuum gripper, four zone face, plant vacuum fed, vented before set-down",
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}