{
  "abstract": "A zoned vacuum gripping tool comprising one tool-change interface, one foam pad, one ejector, one isolation valve, four 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-2026-000029791",
  "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": 1270
  },
  "figures": [],
  "files": [
    {
      "bytes": 19365,
      "media_type": "text/html; charset=utf-8",
      "name": "index.html",
      "sha256": "5209dc51a72bf73fc528f6ce633510c69f2ab59e420dc503b7438d010623e670"
    },
    {
      "bytes": 8888,
      "media_type": "text/markdown; charset=utf-8",
      "name": "publication.md",
      "sha256": "3d1bd29237cd6aac27c3f35d3d69268f9757a0d1704700ed3b42824a1027a4ce"
    },
    {
      "bytes": 8600,
      "media_type": "text/plain; charset=utf-8",
      "name": "publication.txt",
      "sha256": "db6c4709e89daa8a55b0b3206d909997941b2432491fec75fec64768503f50cc"
    }
  ],
  "integrity": {
    "hash_algorithm": "sha256",
    "keys_url": "https://opentechnical.org/integrity/keys",
    "record_url": "https://opentechnical.org/p/OT-2026-000029791/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-2026-000029791",
  "published_at": "2026-09-17T08:19:51.545382Z",
  "publisher": "Nebula Innovations Limited",
  "record_type": "disclosure",
  "schema": "opentechnical-publication-manifest/1.0",
  "supersedes": null,
  "title": "Foam pad vacuum gripper, four zone face, common isolation valve, three stage ejector, pulsed blow-off before set-down, on a tool changer",
  "uuid": "01a0ae73-5e24-7eab-8303-58faf59ffb68"
}