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:
Mar. 01, 1977
Filed:
May. 28, 1975
Takao Murayama, Yokohama, JA;
Taisei Kensetsu Kabushiki Kaisha, Tokyo, JA;
Tokyo Gas Company Limited, Tokyo, JA;
Abstract
Equipment for treating waste gas containing tar mist is constituted by bag houses having bag filters therein and in which a filter cleaning apparatus for each filter is installed, respectively, a conducting duct for waste gas containing tar mist connected to each bag house and equipped with a shut-off valve, respectively, a discharging duct for treated waste gas and a supply tube for supplying protective coating material which is caused to form a precoated layer on the surface of the bag filter. The efficiency of the waste gas treatment is improved by the action of the precoated layer in inhibiting the direct contact of tar mist with the bag filter.