Invention Grant
- Patent Title: Valve packing having independently loaded packing rings
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Application No.: US17153318Application Date: 2021-01-20
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Publication No.: US11698147B2Publication Date: 2023-07-11
- Inventor: Brett Allen Hofman
- Applicant: Fisher Controls International LLC
- Applicant Address: US IA Marshalltown
- Assignee: Fisher Controls International LLC
- Current Assignee: Fisher Controls International LLC
- Current Assignee Address: US IA Marshalltown
- Agency: Hanley, Flight & Zimmerman, LLC
- Main IPC: F16K41/04
- IPC: F16K41/04 ; F16J15/18

Abstract:
A valve packing having independently loaded packing rings is disclosed. A packing assembly for a fluid valve includes a first packing ring, a first follower to be disposed at least partially within a bore of a bonnet of the fluid valve to apply a first load to the first packing ring, a second packing ring sized to fit within a bore of the first follower, and a second follower to be disposed at least partially within the bore of the first follower to apply a second load to the second packing ring within the bore of the first follower.
Public/Granted literature
- US20220228675A1 VALVE PACKING HAVING INDEPENDENTLY LOADED PACKING RINGS Public/Granted day:2022-07-21
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