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This is a record of a document published elsewhere, first published by the United States Patent and Trademark Office, as US-12601423-B2, on 14 April 2026. OpenTechnical did not first disclose it. The identifier, hashes and timestamps below record what this library served and when, not when the material became public. View the original.

OT-2026-000000658

Control valves with adjustable valve packing

Published
Permanent URL
Classification
Industrial Motion & Power Transmission › Fluid Power
Original source
US-12601423-B2, the United States Patent and Trademark Office, 14 April 2026
Document SHA-256
c6b3513a34a2639ba056730899dfa8845d03d6208a27ec9cd6853eef6decccc3

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.

Publication information

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Citation

OpenTechnical Publication OT-2026-000000658, “Control valves with adjustable valve packing,” published September 15, 2026 at 19:03:13 UTC, https://opentechnical.org/p/OT-2026-000000658.

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This record reproduces a document published elsewhere and is provided for reference and study. Rights in the original remain with its owner. See the publication policy.