Title:
Method of forming a sound attenuating and gas passage tube construction
United States Patent 3404445
US Patent References:
Muffler
- - 1878424

Muffler
- - 2047442

Muffler
- - 2148948

Method of corrugating tubing
- - 2683928

Encased electrical capacitor
- - 3204164


Inventors:
Crouse, Glenn R.
Publication Date:
10/08/1968
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Assignee:
OLDBERG MFG COMPANY
Primary Class:
29/890.080
Other Classes:
29/520, 29/455.100, 138/148, 181/232, 29/469, 181/227, 29/523
International Classes:
F01N1/00; F01N7/18; F01N7/02; F01N7/00
US Patent References:
3219142Method and apparatus for attenuating sound waves in gas streams
3242558Method of making intermediate shell construction for silencer or muffler




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