{
  "abstract": "A zoned vacuum gripping tool comprising one tool-change interface, two bellows cups, one ejector, one isolation valve, two zone branches, one contact detector and one blow-off valve. When the bellows cups reach the workpiece, the bellows cups are 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-2026-000021907",
  "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": 31,
    "words": 1200
  },
  "figures": [],
  "files": [
    {
      "bytes": 18954,
      "media_type": "text/html; charset=utf-8",
      "name": "index.html",
      "sha256": "3007ec2e09cdf182757dd6ff388755b627045b4d9d592a35b55554cb3b80ea5a"
    },
    {
      "bytes": 8554,
      "media_type": "text/markdown; charset=utf-8",
      "name": "publication.md",
      "sha256": "b8808749606680602f402be14473ed13ef07360807cb8f12e4d75d93d3c2abcf"
    },
    {
      "bytes": 8257,
      "media_type": "text/plain; charset=utf-8",
      "name": "publication.txt",
      "sha256": "d19553491e81af10b879be4868474270f02aa241614aac0e6510e1e942191347"
    }
  ],
  "integrity": {
    "hash_algorithm": "sha256",
    "keys_url": "https://opentechnical.org/integrity/keys",
    "record_url": "https://opentechnical.org/p/OT-2026-000021907/integrity",
    "signature_algorithm": "Ed25519",
    "signature_file": "manifest.sig",
    "verify_url": "https://opentechnical.org/integrity/verify"
  },
  "keywords": [
    "zoned vacuum tool",
    "tool-change interface",
    "bellows cup",
    "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-2026-000021907",
  "published_at": "2026-09-17T08:15:53.201585Z",
  "publisher": "Nebula Innovations Limited",
  "record_type": "disclosure",
  "schema": "opentechnical-publication-manifest/1.0",
  "supersedes": null,
  "title": "Two bellows cup vacuum gripper, two zone face, common isolation valve, three stage ejector, pulsed blow-off before set-down, on a tool changer",
  "uuid": "01a0ae6f-bb5b-7a9d-a4a8-ec43f6bf690a"
}