Pipe section punning along a curve

Details Pipe section punning along a curve Pipe section punning along a curve

1999-01-29

2000-08-22

Ro, Bentsu

Acoustics

Sound-modifying means

Muffler, fluid conducting type

181264, 181247, 181241, 181227, F01N 718

Patent

active

061057177

ABSTRACT:
Pipe section running along a curve, intended for use in a muffler, comprising two hollow-formed molded parts which are mirror-symmetrical in relation to the radial plane of the curve and which have connected thereto a flat outside edge running in the radial plane along the outside of the curve, which flat outside edges are placed on each other so that the molded parts together form the pipe section, a third flat part being placed at the position of the radial plane between the two molded parts in such a way that a curved edge of said third flat part is situated between the two flat outside edges of the molded parts and is fastened to said outside edges.

REFERENCES:
patent: 3645357 (1972-02-01), Cassel
patent: 3648802 (1972-03-01), Pierce
patent: 4396090 (1983-08-01), Wolfhugel
patent: 4671381 (1987-06-01), Rascov
patent: 5332873 (1994-07-01), Kullander et al.
patent: 5581056 (1996-12-01), Beligardt et al.

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