{
  "abstract": "A zoned vacuum gripping tool comprising one tool-change interface, two bellows cups, one vacuum pump, two zone branches and one vent valve. When the bellows cups reach the workpiece, the bellows cups are evacuated by the vacuum pump. 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",
    "robotics-automation/end-effectors/tool-changers",
    "industrial-motion-power-transmission/fluid-power/vacuum-generation"
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  "keywords": [
    "zoned vacuum tool",
    "tool-change interface",
    "bellows cup",
    "vacuum pump",
    "zone branch",
    "vent valve",
    "compressed air supply",
    "drop release",
    "electric actuation",
    "release control"
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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-2026-000011410",
  "published_at": "2026-09-17T08:12:23.703080Z",
  "publisher": "Nebula Innovations Limited",
  "record_type": "disclosure",
  "schema": "opentechnical-publication-manifest/1.0",
  "supersedes": "OT-2026-000007263",
  "title": "Two bellows cup vacuum gripper, two zone face, pump fed, vented before set-down, on a tool changer",
  "uuid": "01a0ae6c-88fe-7003-bbcf-9d06bc9daf8e"
}