Particulate trap

Details Particulate trap Particulate trap

1988-08-10

1989-04-25

Larson, Lowell A.

Metal deforming

By use of 'flying tool' engaging moving work

Including orbitally-moving tool-face

29157R, 428182, 72379, B21D 1304, B21D 1310

Patent

active

048235830

ABSTRACT:
There is provided a particulate trap for reducing the amount of particulates emanating from the exhaust of an internal combustion engine. The device utilizes a wound or accordion folded corrugated metal strip. The corrugations are characterized by a plurality of isolated projecting geometric configurations, such as a V-shaped chevrons spaced along a straight line extending between the parallel marginal edges of the thin metal strip. The apices of the metal strip pass through the corrugating rolls to place such apices in compression rather than in tension. These devices are not subject to nesting and are effective to remove diesel exhaust particulates.

REFERENCES:
patent: 2290608 (1942-07-01), Evans
patent: 2684707 (1954-07-01), Getz
patent: 2963128 (1960-12-01), Rapp
patent: 3351441 (1967-11-01), Gewiss
patent: 4065268 (1977-12-01), Betz
patent: 4382323 (1983-05-01), Chapman et al.
patent: 4711009 (1987-12-01), Cornelison et al.
patent: 4725411 (1988-02-01), Cornelison

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