{
  "abstract": "A zoned vacuum gripping tool comprising one tool-change interface, three suction cups, one ejector, three zone branches, 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.",
  "canonical_url": "https://opentechnical.org/p/OT-2026-000010489",
  "categories": [
    "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"
  ],
  "extent": {
    "figures": 0,
    "paragraphs": 27,
    "words": 1038
  },
  "figures": [],
  "files": [
    {
      "bytes": 17944,
      "media_type": "text/html; charset=utf-8",
      "name": "index.html",
      "sha256": "9a1d73fbcf0da3d7debfc1f9a7f33b3f5aa0048486365a8e09d9a939135487f6"
    },
    {
      "bytes": 7630,
      "media_type": "text/markdown; charset=utf-8",
      "name": "publication.md",
      "sha256": "cf5b9c1a20fbaa2d4919d7f951f82ed6db916bb4114028ec4d96aa01cdb0d158"
    },
    {
      "bytes": 7355,
      "media_type": "text/plain; charset=utf-8",
      "name": "publication.txt",
      "sha256": "621382e6b70bfaab67aaa86ef020773eb8360a47307f2b33a41c108b2f6cc0a2"
    }
  ],
  "integrity": {
    "hash_algorithm": "sha256",
    "keys_url": "https://opentechnical.org/integrity/keys",
    "record_url": "https://opentechnical.org/p/OT-2026-000010489/integrity",
    "signature_algorithm": "Ed25519",
    "signature_file": "manifest.sig",
    "verify_url": "https://opentechnical.org/integrity/verify"
  },
  "keywords": [
    "zoned vacuum tool",
    "tool-change interface",
    "suction cup",
    "ejector",
    "zone branch",
    "contact detector",
    "vent valve",
    "compressed air supply",
    "contact sensing",
    "drop release"
  ],
  "language": "en",
  "license": {
    "name": "Creative Commons Attribution 4.0 International",
    "url": "https://creativecommons.org/licenses/by/4.0/"
  },
  "publication_id": "OT-2026-000010489",
  "published_at": "2026-09-17T08:11:52.445886Z",
  "publisher": "Nebula Innovations Limited",
  "record_type": "disclosure",
  "schema": "opentechnical-publication-manifest/1.0",
  "supersedes": "OT-2026-000006220",
  "title": "Three cup vacuum gripper, three zone face, single stage ejector, vented before set-down, on a tool changer",
  "uuid": "01a0ae6c-0ee7-7105-b7be-e26814a82eb9"
}