{
  "abstract": "The present invention relates to a valve module for a vacuum pump, and the valve module includes a through-body (11) mounted on a communication-hole (113) of the vacuum pump, and a valve (13) disposed in the body (11) to open and close a central passage (12) while moving upward/downward. In the present invention, particularly, an exhaust path (17) of a pad (120) includes one or more longitudinal air guide-grooves (18), which are defined in an inner wall (15a) or an outer wall (13a) and are disposed between the inner wall (15a) of a space part (15) and the outer wall (13a) of the valve (13) to serve as an air passage connected to the passage (12), and a gap or micro-hole (20) defined between the valve (13) and the body (11) to communicate with the guide-groove and the central passage (12). Therefore, there is no concern that the passage is blocked or deformed even though the body (11) is made of an elastically deformable material.",
  "assignees": [
    "VTEC CO LTD"
  ],
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    "name": "Creative Commons Attribution 4.0 International",
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  "publication_id": "OT-2026-000002787",
  "published_at": "2026-09-15T19:15:21.413390Z",
  "publisher": "Nebula Innovations Limited",
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  "source_date": "2026-02-18",
  "source_id": "EP-4696889-A1",
  "source_name": "the European Patent Office",
  "source_url": "https://patents.google.com/patent/EP4696889A1",
  "supersedes": null,
  "title": "Valve module for vacuum pump",
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