{
  "abstract": "An upper tool for a sealing station of a packaging machine, having an indentation with which an upper film web can be formed and having gas through-openings that are provided along the indentation and can be connected to a negative pressure, positive pressure, and/or aeration source, the gas through-openings can be divided into at least two groups that can be connected independently of one another to the negative pressure, positive pressure, and/or aeration source, the former has chambers that are each connected to the negative pressure, positive pressure, and/or aeration source and are each connected to a group of gas through-openings, and a group and/or a chamber is provided in a central region of the indentation, a further chamber in a shape of a ring, extends about the chamber in the central region, and a signal from a pressure sensor is used for initiating the aeration of the ring-shaped region.",
  "canonical_url": "https://opentechnical.org/p/OT-2026-000000504",
  "categories": [
    "material-handling/package-handling"
  ],
  "extent": {
    "figures": 0,
    "paragraphs": 0,
    "words": 150
  },
  "figures": [],
  "files": [
    {
      "bytes": 9757,
      "media_type": "text/html; charset=utf-8",
      "name": "index.html",
      "sha256": "262eb5573b56f8f705d014c267a537cf8dbf67f412fc546112ac119dde611776"
    },
    {
      "bytes": 1271,
      "media_type": "text/markdown; charset=utf-8",
      "name": "publication.md",
      "sha256": "1a76589465110ffd604ef69d7c198ad3e552bec832aee15d0d18243528ce05b0"
    },
    {
      "bytes": 1431,
      "media_type": "text/plain; charset=utf-8",
      "name": "publication.txt",
      "sha256": "a928ba5bbf1526392573668d975504ee960c211af4cc937f5eb05ddc179c24aa"
    }
  ],
  "integrity": {
    "hash_algorithm": "sha256",
    "keys_url": "https://opentechnical.org/integrity/keys",
    "record_url": "https://opentechnical.org/p/OT-2026-000000504/integrity",
    "signature_algorithm": "Ed25519",
    "signature_file": "manifest.sig",
    "verify_url": "https://opentechnical.org/integrity/verify"
  },
  "keywords": [
    "b65b11/52",
    "b65b31/028",
    "b65b5/068"
  ],
  "language": "en",
  "license": {
    "name": "Creative Commons Attribution 4.0 International",
    "url": "https://creativecommons.org/licenses/by/4.0/"
  },
  "publication_id": "OT-2026-000000504",
  "published_at": "2026-09-15T19:02:59.323962Z",
  "publisher": "Nebula Innovations Limited",
  "record_type": "record",
  "schema": "opentechnical-publication-manifest/1.0",
  "source_date": "2026-04-16",
  "source_id": "US-2026103305-A1",
  "source_name": "the United States Patent and Trademark Office",
  "source_url": "https://patents.google.com/patent/US2026103305A1",
  "supersedes": null,
  "title": "Sealing tool for a skin packaging",
  "uuid": "01a0a673-73fb-7333-9c02-0ed72c85938e"
}