{
  "abstract": "A suck-back valve includes a valve main body formed with a suck-back chamber, and a suck-back mechanism unit. The suck-back mechanism unit includes a suck-back piston accommodated in a suck-back cylinder chamber and being slidable between two dead center positions, and a biasing member biasing the suck-back piston in a direction to increase the volume of the suck-back chamber. The suck-back cylinder chamber is divided by the suck-back piston into a first fluid chamber and a second fluid chamber. The biasing member is arranged in the first fluid chamber, and a standby position at which the suck-back piston is positioned when the pressure of a drive fluid in the second fluid chamber becomes the maximum is set to be away from the dead center position on the side closer to the suck-back chamber.",
  "canonical_url": "https://opentechnical.org/p/OT-2026-000000111",
  "categories": [
    "industrial-motion-power-transmission/fluid-power"
  ],
  "extent": {
    "figures": 0,
    "paragraphs": 0,
    "words": 133
  },
  "figures": [],
  "files": [
    {
      "bytes": 9672,
      "media_type": "text/html; charset=utf-8",
      "name": "index.html",
      "sha256": "154cdf0d6eaf66041be2ff2615e750defe68c2afdc4b8f056043c60cc93ad1e5"
    },
    {
      "bytes": 1120,
      "media_type": "text/markdown; charset=utf-8",
      "name": "publication.md",
      "sha256": "44b29daac57d6f620eda4df30eccfb7eec4ef980f9d80d62424696f42074e8c2"
    },
    {
      "bytes": 1318,
      "media_type": "text/plain; charset=utf-8",
      "name": "publication.txt",
      "sha256": "c8e047a2dce3a1b2143508e644c71edff173cf1e6e89d7e0f211f6327a50d9b4"
    }
  ],
  "integrity": {
    "hash_algorithm": "sha256",
    "keys_url": "https://opentechnical.org/integrity/keys",
    "record_url": "https://opentechnical.org/p/OT-2026-000000111/integrity",
    "signature_algorithm": "Ed25519",
    "signature_file": "manifest.sig",
    "verify_url": "https://opentechnical.org/integrity/verify"
  },
  "keywords": [
    "f16k23/00",
    "f16k7/12"
  ],
  "language": "en",
  "license": {
    "name": "Creative Commons Attribution 4.0 International",
    "url": "https://creativecommons.org/licenses/by/4.0/"
  },
  "publication_id": "OT-2026-000000111",
  "published_at": "2026-09-15T19:02:30.074893Z",
  "publisher": "Nebula Innovations Limited",
  "record_type": "record",
  "schema": "opentechnical-publication-manifest/1.0",
  "source_date": "2026-04-21",
  "source_id": "US-12607273-B2",
  "source_name": "the United States Patent and Trademark Office",
  "source_url": "https://patents.google.com/patent/US12607273B2",
  "supersedes": null,
  "title": "Suck-back valve",
  "uuid": "01a0a673-01ba-79aa-91c6-5654687c2c5b"
}