{
  "abstract": "A zoned vacuum gripping tool comprising one tool-change interface, one foam pad, one ejector, four zone branches, one pressure sensor, one contact detector and one vent valve. When the foam pad reaches the workpiece, the foam pad is 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-2026-000008992",
  "categories": [
    "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"
  ],
  "extent": {
    "figures": 0,
    "paragraphs": 33,
    "words": 1239
  },
  "figures": [],
  "files": [
    {
      "bytes": 19605,
      "media_type": "text/html; charset=utf-8",
      "name": "index.html",
      "sha256": "75b2d14b3b9aecebb52fd471fc9857e13ebcfc4952c0f8da990eceb95723fe2f"
    },
    {
      "bytes": 8899,
      "media_type": "text/markdown; charset=utf-8",
      "name": "publication.md",
      "sha256": "fb6cc84b48f29c483ee18d4e39b1cf1a6ce0cf5f96486d97e6c034a7713e5d0f"
    },
    {
      "bytes": 8586,
      "media_type": "text/plain; charset=utf-8",
      "name": "publication.txt",
      "sha256": "08bb354417049a1d20959ab8666630d8be55b9e482192d811957e8d1a7e7f62f"
    }
  ],
  "integrity": {
    "hash_algorithm": "sha256",
    "keys_url": "https://opentechnical.org/integrity/keys",
    "record_url": "https://opentechnical.org/p/OT-2026-000008992/integrity",
    "signature_algorithm": "Ed25519",
    "signature_file": "manifest.sig",
    "verify_url": "https://opentechnical.org/integrity/verify"
  },
  "keywords": [
    "zoned vacuum tool",
    "tool-change interface",
    "foam pad",
    "ejector",
    "zone branch",
    "pressure sensor",
    "contact detector",
    "vent valve",
    "compressed air supply",
    "contact sensing"
  ],
  "language": "en",
  "license": {
    "name": "Creative Commons Attribution 4.0 International",
    "url": "https://creativecommons.org/licenses/by/4.0/"
  },
  "publication_id": "OT-2026-000008992",
  "published_at": "2026-09-17T08:10:55.823363Z",
  "publisher": "Nebula Innovations Limited",
  "record_type": "disclosure",
  "schema": "opentechnical-publication-manifest/1.0",
  "supersedes": "OT-2026-000004676",
  "title": "Foam pad vacuum gripper, four zone face, three stage ejector, supply line pressure sensor, vented before set-down, on a tool changer",
  "uuid": "01a0ae6b-31b8-754c-bbde-e00cb8383fc2"
}