{
  "abstract": "An example apparatus is disclosed herein comprising a valve that includes a valve body defining a fluid passageway between an inlet and an outlet, a flow control member in the fluid passageway, a stem coupled to the flow control member, and a bonnet coupled to the valve body. The stem extends through a channel in the bonnet. A section of the channel forms a bore. The bore is threaded. The apparatus includes packing in the channel to form a seal between the bonnet and the stem. The apparatus includes a worm wheel nut threadably engaged with the bore. The stem extends through an opening in the worm wheel nut. The apparatus also includes a worm meshed with the worm wheel nut. The worm is to rotate the worm wheel nut to cause the worm wheel nut to move and adjust a load on the packing.",
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  "publication_id": "OT-2026-000000658",
  "published_at": "2026-09-15T19:03:13.067689Z",
  "publisher": "Nebula Innovations Limited",
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  "source_date": "2026-04-14",
  "source_id": "US-12601423-B2",
  "source_name": "the United States Patent and Trademark Office",
  "source_url": "https://patents.google.com/patent/US12601423B2",
  "supersedes": null,
  "title": "Control valves with adjustable valve packing",
  "uuid": "01a0a673-a9ab-778e-b564-2ae9981f93dd"
}