Split ring seal

Gas and liquid contact apparatus – Contact devices – Wet baffle

Reexamination Certificate

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Details

C261S114500, C277S315000, C277S631000

Reexamination Certificate

active

11175667

ABSTRACT:
A split ring seal having a structured split formed with first and second overlapping leaves, movable between a compressed state and an expanded state, and having a first bore through the first leaf and a second bore through the second leaf such that, in the compressed state, the first and second bores are mutually aligned. A method of installing one or more packing trays in a process tower comprising providing such a split ring seal carried by one or more packing trays, locking each split ring seal in its compressed state with a pin through the overlapping leaf bores, placing the packing trays in the process tower and removing the pin to allow the split ring seals to expand and seal to the process tower.

REFERENCES:
patent: 1361672 (1920-12-01), Blair
patent: 2241114 (1941-05-01), Brunjes
patent: 2241370 (1941-05-01), Armstrong
patent: 2807451 (1957-09-01), Kuhni et al.
patent: 2889018 (1959-06-01), Swan
patent: 2951691 (1960-09-01), Nutter
patent: 3039751 (1962-06-01), Versluis
patent: 3053520 (1962-09-01), Streuber
patent: 3094575 (1963-06-01), Peterson
patent: 3097855 (1963-07-01), Allen
patent: 3179389 (1965-04-01), Nutter
patent: 3287004 (1966-11-01), Nutter
patent: 3926741 (1975-12-01), Bertsch
patent: 4361469 (1982-11-01), Trutna
patent: 4589666 (1986-05-01), Halling
patent: 5695548 (1997-12-01), Trutna
patent: 7055810 (2006-06-01), Gage
patent: 2006/0085060 (2006-04-01), Campbell
“Package Trays for Pipe-Size Process Vessels” Bulletin PT-1 of Nutter Engineering, six pages, no discernible date.
“A Full Spectrum of Tower Internals” Bulletin N-3 of Nutter Engineering, p. 7 plus the front and back covers, no discernible date.

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