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:
Apr. 13, 1976
Filed:
Jun. 20, 1975
Applicant:
Inventors:
James H Muehlbauer, Evansville, IN (US);
Larry A Wandtke, Newburgh, IN (US);
Assignee:
George Koch Sons, Inc., Evansville, IN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N / ; F01N / ;
U.S. Cl.
CPC ...
181 50 ; 181 / ; 181 42 ; 181 61 ;
Abstract
A fan silencer having an external shell of annular cross section and a cylindrical central core mounted on a rigid frame. The external shell and the inner core each contain noise absorbing insulation, and have easily removable wall sections to allow fast and easy replacement of said insulation and cleaning of said wall sections.
Muehlbauer, James. (1976). Fan silencer (U.S. Patent No. 3949830). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/3949830
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile