The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 03, 1978
Filed:
Jan. 21, 1976
Per G Norback, Lidingo, SE;
Aktiebolaget Carl Munters, Sollentuna, SE;
Abstract
Purifier unit comprising a porous body coated with a substance having catalytic action to bring about purification of a medium, primarily a gas passing through the unit. A main field of use is the purification of hot exhaust gases from internal combustion engines. To render the porous purifier unit insensitive to the high temperature of the engine exhaust gases and the great variations of temperature particularly in winter time when starting a motor vehicle, and at the same time resistant to high mechanical stress and shock arising mainly from jolts and vibrations of a motor vehicle in motion, the porous body is comprised of a plurality of thin, at least partly corrugated, layers forming between themselves fine passageways extending from end to end for the medium to be purified and coated with the catalyst. The layers consist of a skeleton obtained from asbestos paper by precipitation of certain inorganic substances and subsequent heating to the fusing or slagging temperature for said substances.