Closely coiled packing element, method of manufacture, and proce

Details Closely coiled packing element, method of manufacture, and proce Closely coiled packing element, method of manufacture, and proce

1983-04-07

1985-02-12

Miles, Tim

Gas and liquid contact apparatus

Contact devices

Porous mass

55 69, 55520, 29412, 82 47, 82 1C, 261DIG72, B01F 304

Patent

active

044990332

ABSTRACT:
A closely coiled multilayered element ("element") for use in filtration of gases, particularly with compressed air, is disclosed, which is a coiled cylindrically-shaped packing, spiralled about a common central axis where each successive layer essentially touches the previous layer. The materials of construction of the element are polyolefins, and, preferably for compressed air, polyethylene where the molecular weight may be as low as 2.5 million. The elements do not compress, thus keeping the void volume open in normal use for trapping both entrained solids and liquids, even if the liquids are dissimilar, such as oil and water. A method for manufacturing the invention which comprises cutting individual pieces of bed packing material from a solid core is also disclosed and the process of gas purification is described.

REFERENCES:
patent: 437902 (1890-10-01), Herder
patent: 1654925 (1928-01-01), Drager
patent: 1848576 (1932-03-01), Sandel
patent: 2376349 (1945-05-01), Frischer
patent: 2580703 (1952-01-01), Russell
patent: 2615832 (1952-10-01), Dixon
patent: 3506248 (1970-04-01), Starbuck et al.
patent: 3926598 (1975-12-01), Filen
"Flexisaddles"; Bulletin FS-1; Koch Engineering Co.; 4111 E. 37th St., North Wichita, Kansas, 67208.
"Spiral Pac"; Croll-Reynolds Co.; 751 Central Ave., Westfield, N.J. 07091.
Hawley, Condensed Chem. Dictionary, 9-18-74, Van Nostram Reinhold, Co., pp. 849, 710, 432.

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