{
  "abstract": "A zoned vacuum gripping tool comprising one tool-change interface, one foam pad, one ejector, one isolation valve, two zone branches, one contact detector and one blow-off 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 workpiece is blown off by the blow-off 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-2026-000021843",
  "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": 33,
    "words": 1259
  },
  "figures": [],
  "files": [
    {
      "bytes": 19321,
      "media_type": "text/html; charset=utf-8",
      "name": "index.html",
      "sha256": "c41407fe3f98bdd184fb3866edfa4fb0bf60541eb82a5b453d1d918246f2b34f"
    },
    {
      "bytes": 8850,
      "media_type": "text/markdown; charset=utf-8",
      "name": "publication.md",
      "sha256": "7fa89eb7d689f20114618cf259d1a4e1f454f39e63c8dee56884806ebe749240"
    },
    {
      "bytes": 8565,
      "media_type": "text/plain; charset=utf-8",
      "name": "publication.txt",
      "sha256": "e72920c891d5a01ef0d80ff4d61fcc4af46a6aa17bc0590bdbeb3de8e36a092c"
    }
  ],
  "integrity": {
    "hash_algorithm": "sha256",
    "keys_url": "https://opentechnical.org/integrity/keys",
    "record_url": "https://opentechnical.org/p/OT-2026-000021843/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",
    "isolation valve",
    "zone branch",
    "contact detector",
    "blow-off valve",
    "blow off release",
    "common isolation"
  ],
  "language": "en",
  "license": {
    "name": "Creative Commons Attribution 4.0 International",
    "url": "https://creativecommons.org/licenses/by/4.0/"
  },
  "publication_id": "OT-2026-000021843",
  "published_at": "2026-09-17T08:15:53.201585Z",
  "publisher": "Nebula Innovations Limited",
  "record_type": "disclosure",
  "schema": "opentechnical-publication-manifest/1.0",
  "supersedes": null,
  "title": "Foam pad vacuum gripper, two zone face, common isolation valve, two stage ejector, pulsed blow-off before set-down, on a tool changer",
  "uuid": "01a0ae6f-bb5a-7198-930c-58a5a1b87e0b"
}